5 Step Wedge
Benefits
Verifies sound velocity, probe zero point, and time-base linearity across ultrasonic thickness gauges and flaw detectors in seconds during field inspections.
Features
Step profile conforming to ASTM E797 guidelines, micron-precision ground parallel surfaces, and tightly controlled dimensional tolerances.
Benefits
Delivers end-to-end traceability for quality audit frameworks through comprehensive test certificates detailing actual micrometer-measured step dimensions.
Features
Permanently laser-etched serial numbering (S/N), EN 10204 3.1 material compliance, and individual dimensional calibration report covering each step.
Benefits
Delivers precise acoustic impedance matching with the inspected test subject, while the fine-ground surface ensures consistent couplant bonding and stable probe seating.
Feature
Available in 1018 Carbon Steel, 316L/304 Stainless Steel, or Aluminum alloys, surface roughness of Ra ≤ 0.8 µm, and dedicated protective storage case.
5 Step Wedge
Precision-machined 5-step ultrasonic calibration block engineered for routine thickness gauge calibration, sound velocity verification, and horizontal linearity assessments in accordance with international NDT standards.
- Digital Ultrasonic Thickness Gauge Routine Calibration & Verification
- A-Scan Flaw Detector Horizontal Time-Base Linearity Calibration
- Field Acoustic Sound Velocity & Probe Zero Point Adjustment
- High-Precision Multi-Thickness Axial Resolution Checks
8 Step Wedge
BENEFITS
Enables comprehensive multi-point sound velocity verification, screen linearity calibration, and gain setup across a continuous thickness spectrum on a single block.
FEATURES
8-tier step profile conforming to ASTM E797 principles, micron-precision parallel ground test surfaces, and tight dimensional tolerances under ±0.02 mm.
BENEFITS
Provides verified documentation for quality audits, accredited laboratories, and field QA/QC protocols by confirming micrometer-measured step dimensions.
FEATURES
Permanently laser-marked serial number (S/N), EN 10204 3.1 material test compliance, and traceable factory calibration certificate detailing all eight steps.
BENEFITS
Stress-relieved microstructure prevents spurious internal reflections while matching the exact acoustic impedance of diverse inspection targets.
FEATURES
Available in 1018 Carbon Steel, 316L Stainless Steel, or 7075-T6 Aluminum alloys, Ra ≤ 0.8 µm fine-ground finish, and dedicated protective storage box.
8 Step Wedge
Precision-engineered 8-step ultrasonic calibration block designed for high-resolution multi-point thickness verification, instrument range setup, and linearity checks in ultrasonic thickness gauging and flaw detection.
- Multi-Point Digital Thickness Gauge Linearity & Zero-Point Calibration
- A-Scan Flaw Detector Horizontal Time-Base & Range Span Checks
- High-Resolution Thin-Section Ultrasonic Wave Speed Determination
- Continuous Wall-Loss Profiling & Step-Wise Resolution Benchmarking
10 Step Wedge
BENEFITS
Verifies time-base horizontal linearity, instrument range, and acoustic velocity continuously from 1 mm to 10 mm in single-millimeter increments on a single reference standard.
FEATURES
10-tier step profile compliant with ASTM E797, micron-tolerance precision ground contact surfaces, and strictly verified face parallelism.
BENEFITS
Delivers total quality assurance for ISO/IEC 17025 audits and QA/QC procedures via traceable documentation reporting the micrometer-verified dimensions of every individual step.
FEATURES
Permanent laser marking with authentic Sonatest branding, part number, and serial number (S/N), EN 10204 3.1 material test compliance, and 10-point dimensional calibration certificate.
BENEFITS
Stress-relieved metal matrix eliminates parasitic backwall noise while offering acoustic impedance matching across varied industrial target alloys.
FEATURES
Available in 1018 Carbon Steel, 316L/304 Stainless Steel, or 7075-T6 Aluminum alloys, Ra ≤ 0.8 µm fine-ground finish, and dedicated padded protective storage box.
10 Step Wedge
High-precision 10-step ultrasonic calibration block manufactured for wide-span linearity checks, multi-point thickness gauge verification, and ultrasonic flaw detector time-base calibration across 1 mm to 10 mm ranges.
- Multi-Tier Digital Thickness Gauge Range & Linearity Verification
- A-Scan Flaw Detector Screen Linearity & Time-Base Calibration
- High-Accuracy Thin-to-Medium Wall Ultrasonic Velocity Checks
- Acoustic Attenuation & Step-Wise Axial Resolution Benchmarking
5 Step OD Curved Wedge
BENEFITS
Verifies time-base horizontal linearity, instrument range, and acoustic velocity continuously from 1 mm to 10 mm in single-millimeter increments on a single reference standard.
FEATURES
10-tier step profile compliant with ASTM E797, micron-tolerance precision ground contact surfaces, and strictly verified face parallelism.
BENEFITS
Delivers total quality assurance for ISO/IEC 17025 audits and QA/QC procedures via traceable documentation reporting the micrometer-verified dimensions of every individual step.
FEATURES
Permanent laser marking with authentic Sonatest branding, part number, and serial number (S/N), EN 10204 3.1 material test compliance, and 10-point dimensional calibration certificate.
BENEFITS
Stress-relieved metal matrix eliminates parasitic backwall noise while offering acoustic impedance matching across varied industrial target alloys.
FEATURES
Available in 1018 Carbon Steel, 316L/304 Stainless Steel, or 7075-T6 Aluminum alloys, Ra ≤ 0.8 µm fine-ground finish, and dedicated padded protective storage box.
5 Step OD Curved Wedge
Curvature-machined 5-step ultrasonic calibration block engineered for high-precision thickness gauge calibration and flaw detector range verification on pipes, pressure vessels, and cylindrical geometries.
- Curved Pipe & Pressure Vessel Ultrasonic Thickness Gauge Calibration
- Elimination of Probe Rocking & Couplant Errors on Cylindrical Shells
- Petrochemical, Refinery & Oil/Gas Pipeline In-Service Wall-Loss Audits
- Boiler Tubes & Steam Piping Ultrasonic Velocity & Axial Linearity Checks
5 Step ID Curved Wedge
BENEFITS
Ensures full acoustic face seating during internal bore inspections, eliminating couplant layer variability and geometric rocking errors common on concave pipe walls.
FEATURES
Precision-machined concave curvature tailored to specific nominal bore IDs, 5-tier thickness steps conforming to ASTM E797, and strictly verified radial parallelism.
BENEFITS
Guarantees total compliance with API, ASME, and ISO QA/QC audit frameworks through accredited test reports certifying the precise internal radius and individual step thicknesses.
FEATURES
Permanently laser-etched part number, nominal ID radius, and unique serial number (S/N), EN 10204 3.1 material compliance, and CMM-verified calibration certificate.
BENEFITS
Matches the acoustic velocity of operational pipeline metals, while the fine-ground concave surfaces promote uniform acoustic transmission and minimize transducer wear.
FEATURES
Manufactured from Carbon Steel (ASTM A106 / AISI 1018), 316L/304 Stainless Steel, or custom alloy grades, Ra ≤ 0.8 µm ground finish, and rugged protective case.
5 Step ID Curved Wedge
Internal-radius-machined 5-step ultrasonic calibration block engineered for accurate thickness gauge verification, flaw detector linearity checks, and probe zero setup on the concave inner surfaces of pipes and tubular components.
- Pipe & Tubular Internal Surface (ID) Ultrasonic Thickness Gauge Calibration
- Elimination of Concave Contact Gaps & Probe Tilting on Internal Bores
- Oil & Gas Pipeline Pigging / Internal Inspection Tool (ILI) Ultrasonic Verification
- Turbine Hollow Shafts, Pressure Cylinders & Boiler Header Internal Audits
CBM Step Wedge
BENEFITS
Independent circular step discs enclosed in a transparent frame eliminate inter-step cross-talk and spurious side-wall reflections found in solid stepped wedges.
FEATURES
6-tier precision-ground cylindrical discs (1.5 mm, 2.5 mm, 5.0 mm, 10.0 mm, 15.0 mm, 20.0 mm), acoustically isolated acrylic mounting block, and ASTM E797 compliance.
BENEFITS
Clear acrylic enclosure protects testing faces from impact and scratches, while highly visible laser-marked step values guarantee rapid, error-free field verification.
FEATURES
High-impact transparent acrylic housing, brass retaining fasteners, laser-etched nominal steps, serial number (S/N), and EN 10204 3.1 material compliance certificate.
BENEFITS
Calibrates screen gain, probe zero, and horizontal time-base linearity over a wide operating spectrum (1.5 mm to 20 mm) on a compact single-block setup.
FEATURES
Micron-tolerance 1018 Carbon Steel or Stainless Steel test discs, Ra ≤ 0.8 µm fine-lapped finish, and individual CMM dimensional verification report.
CBM Step Wedge
Acoustically isolated multi-step ultrasonic thickness calibration block mounted in a transparent acrylic holder, designed for high-accuracy thickness gauge calibration, time-base linearity verification, and zero-point setup from 1.5 mm to 20 mm.
- Digital Ultrasonic Thickness Gauge Routine Range & Linearity Calibration
- Elimination of Multi-Step Side Wall Noise & Acoustic Cross-Talk
- Ultrasonic Flaw Detector Velocity & Probe Zero Point Verification
- Wide-Span (1.5 mm – 20 mm) Axial Resolution & Sensitivity Audits
V1 / A2 Block
BENEFITS
Verifies probe index point, true refracted beam angle, time-base screen range for angle probes, alongside dead-zone and resolution limits for normal beam transducers.
FEATURES
Conforms fully to EN ISO 2400 (IIW V1), EN ISO 7963, and DIN 54120 Type 1, precision R100 radius curved contour, 50 mm reference cylinder insert/hole, and 1.5 mm side-drilled hole (SDH).
BENEFITS
Detects probe face wear and refracted angle variations rapidly using a micron-accurate angular scale, while accredited certificates guarantee compliance during technical audits.
FEATURES
High-contrast laser-etched 30° to 60° angle index markings, authentic Sonatest laser branding, EN 10204 3.1 material test compliance, and individual CMM dimensional verification report.
BENEFITS
Delivers a stable longitudinal wave velocity of 5920 m/s ± 30 m/s via a stress-relieved steel microstructure, with fine-ground parallel faces preventing spurious internal reflections.
FEATURES
Low-alloy forged carbon steel or stainless steel options, Ra ≤ 0.8 µm surface roughness, ±0.01 mm face parallelism tolerance, and heavy-duty impact-resistant transport case.
V1 / A2 Block
Standardized primary ultrasonic calibration block engineered according to EN ISO 2400 and EN ISO 7963 for time-base calibration, probe index point verification, beam angle measurement, and sensitivity setup of angle beam and normal beam transducers.
- Angle Beam Probe Index Point & Refracted Beam Angle Verification
- Time-Base Calibration for Shear (Transverse) and Longitudinal Waves
- A-Scan Flaw Detector Gain Sensitivity & DAC / TCG Curve Setup
- Normal Beam Transducer Dead Zone, Sensitivity & Axial Resolution Audits
No1 / K1 Block
BENEFITS
Provides full calibration verification for probe index points, refracted beam angles, and instrument range setup across projects governed by British Standards (BS) and IIW specifications.
FEATURES
Conforms to BS 2704, EN ISO 2400, and ISO 7963, precision R100 radius profile, 50 mm diameter reference cylinder insert, and 1.5 mm transverse side-drilled hole (SDH).
BENEFITS
Allows rapid on-site detection of beam angle deviations caused by wedge wear, while individual accredited test reports guarantee seamless compliance during quality audits.
FEATURES
High-contrast laser-etched 30° to 60° angle index scale, genuine Sonatest branding, EN 10204 3.1 material test certificate, and serialized CMM dimensional calibration sheet.
BENEFITS
Delivers a stable longitudinal wave velocity of 5920 m/s ± 30 m/s via a stress-relieved steel microstructure, while fine-lapped contact faces prevent acoustic signal loss.
FEATURES
Low-alloy forged carbon steel or stainless steel options, Ra ≤ 0.8 µm surface roughness, ±0.01 mm face parallelism tolerance, and heavy-duty protective carrying case.
No1 / K1 Block
Standardized primary ultrasonic reference block manufactured in compliance with BS 2704 and EN ISO 2400 specifications for time-base calibration, beam angle verification, probe index determination, and gain sensitivity setting.
- Angle Beam Transducer Probe Index & True Refracted Angle Determination
- BS 2704 & EN ISO 2400 Standardized Flaw Detector Time-Base Calibration
- Shear Wave & Longitudinal Wave Acoustic Distance Scale Setup
- Transducer Dead Zone, Sensitivity Verification & Resolution Benchmarking
V2 / A4 Block
BENEFITS
Provides lightweight, pocket-sized on-site calibration compared to heavy V1 blocks, rapidly verifying probe index points and true refracted angles on scaffolding and pipeline sites.
FEATURES
Conforms fully to EN ISO 7963 (IIW V2) and DIN 54122, precision-ground R25 and R50 radii, 1.5 mm transverse side-drilled hole (SDH), and dual 40°–75° laser angle scales.
BENEFITS
Conforms fully to EN ISO 7963 (IIW V2) and DIN 54122, precision-ground R25 and R50 radii, 1.5 mm transverse side-drilled hole (SDH), and dual 40°–75° laser angle scales.
FEATURES
Fabrik Steel produces three grades of steel that optimize the application of porcelain (or vitreous) enamel coatings that resist fish-scaling during the enameling process, resist carbon boil during enameling, and provide the sag resistance needed during the firing process.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic acoustic noise, while finely ground curved and flat surfaces ensure stable transducer coupling in the field.
FEATURES
Low-alloy forged carbon steel or stainless steel options, 20 mm (or 12.5 mm) thickness variants, Ra ≤ 0.8 µm fine-ground finish, and heavy-duty protective pouch/case.
V2 / A4 Block
Compact, portable ultrasonic reference block manufactured in strict accordance with EN ISO 7963 (IIW V2) and DIN 54122 specifications, designed for rapid field verification of angle beam probe index points, refracted beam angles, and time-base range calibration.
- On-Site Angle Beam Probe Index Point & Refracted Angle Verification
- Rapid Shear Wave Time-Base & Screen Range Calibration (25 mm / 50 mm / 100 mm)
- Probe Wedge Wear Monitoring & Beam Angle Drift Inspection
- In-Service Pipeline, Pressure Vessel & Structural Weld UT Field Audits
No2 / K2 Block
BENEFITS
Delivers rapid on-site verification of angle beam probe index points, refracted angles, and time-base range for projects governed by British Standards (BS) and Commonwealth specifications.
FEATURES
Full compliance with BS 2704, EN ISO 7963, and IIW Type 2, precision-machined R25 and R50 radii, 5.0 mm transverse side-drilled hole (SDH), and 12.5 mm nominal block thickness.
BENEFITS
Immediately identifies wedge-wear-induced angle drift via wear-resistant dual angular scales, while accredited calibration documentation ensures compliance during third-party QA/QC audits.
FEATURES
High-contrast laser-etched 40° to 75° angular index scales, permanent P/N and serial number (S/N) markings, EN 10204 3.1 material certificate, and serialized CMM dimensional verification report.
BENEFITS
Eliminates spurious internal reflections through a stress-relieved steel microstructure, while fine-lapped contact faces ensure consistent couplant bonding and stable probe movement.
FEATURES
Low-alloy forged carbon steel or stainless steel options, Ra ≤ 0.8 µm surface roughness, ±0.01 mm parallelism tolerance, and heavy-duty belt-mountable protective pouch/case.
No2 / K2 Block
Compact portable ultrasonic calibration block manufactured to BS 2704 and EN ISO 7963 specifications, engineered for fast field verification of angle beam transducer index points, actual beam refraction angles, and time-base range calibration.
- On-Site Angle Beam Probe Index Point & Refracted Beam Angle Verification
- BS 2704 & EN ISO 7963 Shear Wave Time-Base Range Calibration (25 mm / 50 mm / 100 mm)
- Angle Probe Wedge Wear Benchmarking & Beam Angle Drift Inspection
- Cross-Country Pipelines, Pressure Piping & Structural Weld Field Inspections
A5 / IOW Block
BENEFITS
Accurately maps angle beam sound boundaries, beam centerlines, and angular beam divergence across varying inspection depths using target side-drilled holes.
FEATURES
Full compliance with BS 2704 (A5) and Institute of Welding (IOW) specifications, precision-drilled 1.5 mm transverse side-drilled holes (SDH) at staggered depths, and fine-ground parallel scanning faces.
BENEFITS
Delivers verified documentation for critical aerospace, nuclear, and defense QA/QC audits via certified reports detailing exact hole depth coordinates.
FEATURES
Permanent laser etching featuring authentic Sonatest branding, part number, and serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification report.
BENEFITS
Stress-relieved steel microstructure prevents spurious internal reflections and attenuation, ensuring smooth scanning and consistent couplant bonding.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground finish, tight ±0.01 mm face parallelism, and heavy-duty protective carrying case.
A5 / IOW Block
Specialized ultrasonic reference block manufactured to BS 2704 (A5) and Institute of Welding (IOW) standards, engineered for angle beam transducer profiling, beam spread angle determination, and depth-dependent sensitivity calibration.
- Angle Beam Transducer Sound Beam Profiling & Boundary Mapping
- Determination of Refracted Beam Spread Angle & Beam Divergence
- Depth-Dependent Defect Sizing & Sensitivity Calibration (Side-Drilled Holes)
- BS 2704 & IOW Compliant Critical Weld Inspection Equipment Audits
A6 Block
BENEFITS
Accurately verifies near-surface resolution, focal zone depth, and time-base range for dual-element and miniature angle beam probes in compliance with BS specifications.
FEATURES
Full compliance with BS 2704 Calibration Block No. 6 (A6), precision-located transverse side-drilled holes, reference bottom slot, and micro-ground scanning faces.
BENEFITS
Provides verified documentation for quality audit frameworks through comprehensive test certificates detailing actual CMM-measured hole depths and slot dimensions.
FEATURES
Permanent laser etching with authentic Sonatest branding, part number, and serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional report.
BENEFITS
Stress-relieved steel microstructure prevents spurious internal scatter and acoustic losses, ensuring stable signal transmission and uniform couplant contact.
FEATURES
Low-alloy forged carbon steel or stainless steel options, Ra ≤ 0.8 µm fine-ground finish, strict ±0.01 mm face parallelism, and heavy-duty protective transport case.
A6 Block
Standardized ultrasonic reference block manufactured in strict accordance with BS 2704 (Calibration Block No. 6) specifications, designed for calibrating twin-crystal (dual element) and angle beam probes, evaluating near-surface resolution, and setting time-base range.
- Twin-Crystal (Dual Element) Probe Near-Surface Resolution Verification
- BS 2704 Standardized Time-Base Calibration & Range Span Adjustment
- Angle Beam Transducer Sensitivity & Dead Zone Benchmarking
- Precision Near-Surface Defect Sizing & Focal Zone Evaluation
A7 / RTB Block
BENEFITS
Verifies angle beam probe index points, true sound path distance, and time-base linearity across multiple radial ranges from a single probe position via concentric semi-circular steps.
FEATURES
Full compliance with BS 2704 Calibration Block No. 7 (A7 / RTB) standards, precision-machined concentric curved radii, tiered step profile, and micron-tolerance ground contact faces.
BENEFITS
Delivers end-to-end traceability for critical defense, nuclear, and aerospace QA/QC audits through accredited reports certifying actual CMM-measured radii and step dimensions.
FEATURES
Permanent laser etching with authentic Sonatest branding, part number, and serial number (S/N), EN 10204 3.1 material test certificate, and serialized CMM dimensional report.
All VITRENEMEL grades typically are furnished with a rough matte finish to improve adhesion of the enamel coating. The approximate surface roughness is 55 to 90 micro-inches. A rougher surface finish, 90 to 150 micro-inches, can be provided if required for a specific application.
The dimensional tolerances for VITRENEMEL Steel Sheet products are the same as those for Cold Rolled Steel Sheet as established by ASTM.
BENEFITS
Stress-relieved forged structure eliminates internal acoustic scatter, while fine-lapped radial surfaces ensure consistent couplant bonding and smooth angle-beam probe seating.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground finish, tightly controlled radial tolerances, and custom fitted protective carrying case.
A7 / RTB Block
Standardized semi-circular stepped ultrasonic calibration block manufactured to BS 2704 (Block No. 7 / RTB) specifications, engineered for calibrating angle beam probe sound paths, verifying probe index points, and evaluating radial distance ranges.
- Angle Beam Probe Sound Path & Index Point (Emission Point) Verification
- Concentric Multi-Radius Ultrasonic Time-Base & Screen Calibration
- BS 2704 Compliant Ultrasonic Flaw Detector Sweep Range Adjustment
- Radial Step Attenuation Benchmarking & Probe Face Wear Monitoring
MU / CBU Block
BENEFITS
Verifies angle beam and normal beam probe index points, refracted angles, time-base screen range, gain sensitivity, and resolution on a single compact block.
FEATURES
Multi-quadrant Roman numeral calibration targets (I, II, III, IV), 40° to 70° precision laser-etched angle scale, radial curved reflector, side-drilled holes, and reference notch.
BENEFITS
Delivers wear-resistant markings that remain legible in tough field conditions, backed by accredited calibration documentation ensuring total compliance during QA/QC audits.
FEATURES
Genuine Sonatest laser branding, authentic part number (149289-01), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional report.
BENEFITS
Stress-relieved steel microstructure eliminates internal parasitic reflections, while the pocket-sized form factor ensures outstanding ergonomics during rope-access or confined-space testing.
FEATURES
Available in low-alloy forged carbon steel or stainless steel, Ra ≤ 0.8 µm fine-lapped contact faces, ±0.01 mm parallelism tolerance, and heavy-duty protective pouch/case.
MU / CBU Block
Comprehensive, portable multi-purpose ultrasonic reference block engineered for verifying angle beam probe index points, actual refracted beam angles, time-base screen ranges, and flaw detector sensitivity across both normal and angle beam applications.
- Multi-Angle Transducer Probe Index Point & Refracted Beam Angle Calibration (40°–70°)
- Combined Shear Wave & Longitudinal Wave Time-Base Range Sweep Setup
- Dead Zone, Near-Surface Flaw Detection & Probe Resolution Benchmarking
- Confined Space, Pipeline & Structural Weld In-Service Rope-Access UT Inspections
DAC 25 mm Block
BENEFITS
Establishes precise Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves by equalizing echo amplitudes across varying depth planes.
FEATURES
Full compliance with EN ISO 17640, EN ISO 11666, and ASME Sec V, precision side-drilled holes (SDH) positioned at $T/4$, $T/2$, and $3T/4$ depths, and micron-ground scanning faces.
BENEFITS
Delivers verified documentation for stringent oil & gas, nuclear, and power-generation QA/QC audits via reports detailing exact CMM-measured reflector depths
FEATURES
Authentic Sonatest laser branding, part number, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved steel matrix eliminates spurious acoustic noise and backwall scatter, ensuring reliable signal transmission that matches typical weld parent metals.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm surface finish, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
DAC 25 mm Block
Precision-engineered 25 mm ultrasonic reference block manufactured according to ASME Section V and EN ISO 17640 specifications, featuring side-drilled holes at multiple depth planes for setting Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves.
- DAC (Distance Amplitude Correction) & TCG (Time Corrected Gain) Curve Setup
- ASME Section V & EN ISO 17640 Standardized Weld Sensitivity Calibration
- Depth-Dependent Defect Sizing & Amplitude Evaluation via Side-Drilled Holes
- Cross-Sectional Acoustic Attenuation & Sound Beam Divergence Benchmarking
DAC 50 mm Block
BENEFITS
Establishes comprehensive Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves across medium-to-thick sections via target reflectors located at 20%, 40%, 60%, and 80% of block thickness.
FEATURES
Full compliance with EN ISO 17640, EN ISO 11666, and ASME Sec V, 50 mm nominal block thickness, 4-tier transverse side-drilled holes (SDH), and precision-ground scanning faces.
BENEFITS
Ensures complete QA/QC compliance for nuclear, offshore, and pressure vessel audits with accredited test documentation certifying the exact CMM-verified depth coordinates of every reflector.
FEATURES
Authentic Sonatest laser branding, explicit depth-tier markings, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal backwall scatter and grain noise, offering acoustic impedance matching with heavy-wall welded components.
FEATURES
Manufactured from low-alloy 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground finish, tight ±0.01 mm face parallelism, and heavy-duty protective carrying case.
DAC 50 mm Block
Engineered in accordance with ASME Section V, EN ISO 17640, and EN ISO 11666 standards, this 50 mm ultrasonic reference block features 4 transverse side-drilled holes at 20%, 40%, 60%, and 80% of block depth for multi-point DAC and TCG curve generation in medium-to-thick wall inspections.
- Multi-Point DAC & TCG Curve Construction for Medium-to-Thick Sections (50 mm)
- ASME Sec V & EN ISO 17640 Standardized Thick Weld Joint Sensitivity Setup
- Depth-Dependent Amplitude Attenuation & Side-Drilled Hole Reflector Sizing
- Heavy-Wall Pressure Vessel, Boiler Drum & Structural Forging Ultrasonic Audits
DAC 75 mm Block
BENEFITS
Compensates for depth-dependent ultrasonic attenuation across heavy forgings, castings, and thick weldments by generating precise DAC and TCG curves via 4 staggered side-drilled holes.
FEATURES
Full compliance with EN ISO 17640, EN ISO 11666, and ASME Sec V, 75 mm nominal block thickness, 4-tier transverse side-drilled holes (SDH), and precision-ground scanning surfaces.
BENEFITS
Delivers verified documentation for stringent nuclear, power generation, and offshore QA/QC audits through certified reports detailing exact CMM-measured reflector coordinates.
FEATURES
Authentic Sonatest laser branding, permanent part number, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal backwall scatter and grain noise, ensuring reliable sound propagation matching heavy industrial parent metals.
FEATURES
Low-alloy forged 1018 Carbon Steel or Stainless Steel options, Ra ≤ 0.8 µm fine-ground finish, strictly controlled face parallelism, and heavy-duty protective carrying case.
DAC 75 mm Block
Precision-machined 75 mm ultrasonic reference block manufactured according to ASME Section V, EN ISO 17640, and EN ISO 11666 standards, featuring 4 staggered transverse side-drilled holes for setting Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves in heavy-wall components.
- Multi-Tier DAC & TCG Curve Construction for Heavy-Wall Sections (75 mm)
- ASME Sec V & EN ISO 17640 Standardized Heavy Weld Joint Sensitivity Calibration
- Acoustic Attenuation Compensation & Deep Reflector Sizing via Side-Drilled Holes
- Nuclear Reactor Vessels, Heavy Wall Piping & Forging Ultrasonic Integrity Audits
DAC 100 mm Block
BENEFITS
Compensates for severe ultrasonic attenuation across deep metal sections by generating high-accuracy DAC and TCG curves via 4 side-drilled holes at staggered depths.
FEATURES
Conforms to EN ISO 17640, EN ISO 11666, and ASME Sec V, 100 mm nominal block thickness, 4-tier transverse side-drilled holes (SDH) spanning 20% to 80% depth, and fine-ground scanning surfaces.
BENEFITS
Provides verified documentation for critical nuclear power and heavy industrial QA/QC audits via certified reports detailing exact CMM-measured reflector depth coordinates.
FEATURES
High-contrast permanent laser branding, explicit depth-tier markings, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal backwall scatter and grain noise, ensuring reliable sound propagation matching heavy industrial parent metals.
FEATURES
Low-alloy forged 1018 Carbon Steel or Stainless Steel options, Ra ≤ 0.8 µm fine-ground finish, strictly controlled face parallelism, and heavy-duty protective wooden/composite case.
DAC 100 mm Block
Engineered in accordance with ASME Section V, EN ISO 17640, and EN ISO 11666 standards, this 100 mm ultrasonic reference block features 4 transverse side-drilled holes at 20%, 40%, 60%, and 80% of block depth for multi-point DAC and TCG curve generation in extra heavy-wall components.
- Multi-Tier DAC & TCG Curve Construction for Extra Heavy-Wall Sections (100 mm)
- ASME Sec V & EN ISO 17640 Standardized Deep Weld Joint Sensitivity Calibration
- Acoustic Attenuation Compensation & Deep Reflector Sizing via Side-Drilled Holes
- Nuclear Reactor Pressure Vessels, Heavy Turbine Rotors & Structural Forging Audits
DAC Block Custom
BENEFITS
Establishes tailored Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves for non-standard wall thicknesses and custom component inspection protocols.
FEATURES
Customizable thickness compliant with ASME, EN ISO, or API specifications, precision-located side-drilled holes (SDH) at tailored depth planes, and micron-ground scanning faces.
BENEFITS
Delivers verified documentation for stringent aerospace, defense, and nuclear QA/QC audits via certified reports detailing exact CMM-measured custom reflector coordinates.
FEATURES
Custom laser-etched identification (Custom P/N and unique S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Eliminates acoustic velocity and impedance mismatch by using identical parent-metal alloys, while thermal stress relief prevents parasitic internal scatter.
FEATURES
Available in Carbon Steel, Austenitic Stainless Steel, Duplex, Titanium, Inconel, or Aluminum alloys, Ra ≤ 0.8 µm fine-ground finish, and heavy-duty protective case.
DAC Block Custom
Custom-engineered ultrasonic reference block tailored to client-specific thicknesses, custom side-drilled hole (SDH) geometries, and dedicated testing procedures in accordance with ASME, EN ISO, or API standards for specialized DAC and TCG sensitivity calibration.
- Custom Wall-Thickness Distance Amplitude Correction (DAC) & TCG Curve Calibration
- Acoustic Impedance & Velocity Matching with Exotic Alloys (Inconel, Duplex, Titanium)
- Client-Specific Procedure Qualification & Defect Sizing Benchmarking
- Nuclear Component, Subsea Manifold & High-Integrity Welded Joint Audits
ASME V T-434.2.1 Plate
BENEFITS
Establishes code-mandated primary reference DAC and TCG curves for ultrasonic examination of pressure vessels, boilers, and heavy structural plates per ASME Section V Article 4 T-434.2.1.
FEATURES
Precision transverse side-drilled holes (SDH) located at depth levels, EDM surface/inner-wall reference notches, and fine-ground scanning surfaces.
BENEFITS
Ensures unconditional acceptance during ASME Authorized Inspector (AI) reviews and third-party QA/QC audits via certified reports detailing exact CMM-verified hole depths and notch dimensions.
FEATURES
Permanently laser-marked part number, nominal thicknessi unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional calibration certificate.
BENEFITS
Eliminates acoustic velocity and attenuation discrepancies by utilizing matching ASME P-Number/Group alloys, while thermal stress relief prevents parasitic internal backwall scatter.
FEATURES
Available in ASME P1 Carbon Steel, P3-P5 Low Alloy Steels, P8 Austenitic Stainless Steel, or custom grades, Ra ≤ 0.8 µm surface finish, and heavy-duty protective wooden/composite case.
ASME V T-434.2.1 Plate
Standardized basic calibration block manufactured in strict accordance with ASME Boiler and Pressure Vessel Code (BPVC) Section V, Article 4, Figure T-434.2.1 for ultrasonic examination of plate welds, incorporating side-drilled holes at depth levels and EDM surface notches for comprehensive DAC/TCG calibration.
- ASME Section V Article 4 Standardized Weld Inspection Calibration
- Construction of Distance Amplitude Correction (DAC) & TCG Sensitivity Curves
- Angle Beam Distance & Sensitivity Calibration via Side-Drilled Holes
- Surface Notch (EDM) Reflection Evaluation for Near-Surface & Root Flaws
ASME V Piping
BENEFITS
Eliminates rocking and couplant thickness errors by contour-matching cylindrical pipes, generating code-mandated DAC and TCG curves for circumferential and longitudinal pipe weld examinations.
FEATURES
Full compliance with ASME Sec V Art. 4 Fig. T-434.3, precision EDM calibration notches on both inner (ID) and outer (OD) surfaces in axial and circumferential orientations, matched to nominal pipe diameter and schedule.
BENEFITS
Delivers certified documentation for ASME Authorized Inspector (AI) reviews and oil & gas audits via accredited reports verifying exact optical/CMM-measured notch dimensions.
FEATURES
Laser-etched identification showing part number, nominal pipe size, wall thickness, serial number (S/N), EN 10204 3.1 material compliance, and serialized dimensional calibration report.
BENEFITS
Eliminates acoustic velocity and impedance mismatch by utilizing identical parent-pipe schedules and material grades, while thermal stress relief prevents parasitic internal noise.
FEATURES
Manufactured from Carbon Steel (ASTM A106 Gr.B / API 5L), Stainless Steel (ASTM A312 TP304/316L), or duplex/exotic alloy pipe segments, Ra ≤ 0.8 µm surface finish, and rugged transport crate.
ASME V Piping
Standardized pipe-curved basic calibration block fabricated in accordance with ASME Boiler and Pressure Vessel Code (BPVC) Section V, Article 4, Figure T-434.3, featuring precision internal (ID) and external (OD) axial and circumferential EDM notches for ultrasonic examination of circumferential and longitudinal piping welds.
- ASME Section V Article 4 Piping Circumferential & Longitudinal Weld Examination
- Distance Amplitude Correction (DAC) & TCG Curve Generation on Curved Pipe Geometries
- Inner (ID) & Outer (OD) Surface EDM Notch Sensitivity & Flaw Sizing Verification
- Petrochemical, Refinery & Power Plant Process Piping In-Service Weld Audits
IIW Type 1 Block
BENEFITS
Verifies angle beam probe index points, actual refracted angles, time-base sweep range, and normal beam resolution per International Institute of Welding (IIW) and ASTM E164 rules.
FEATURES
Conforms fully to EN ISO 2400, ASTM E164, and IIW Type 1 standards, precision R100 curved contour, 50 mm acrylic-filled cylinder, 1.5 mm transverse side-drilled hole (SDH), and slotted quadrant.
BENEFITS
Rapidly identifies probe face wear and refracted angle drift via dual micron-accurate angular scales, while accredited reports provide total acceptance during third-party QA/QC audits.
FEATURES
High-contrast laser-etched 30° to 60° angular scales, authentic Sonatest laser branding, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional calibration sheet.
BENEFITS
Ensures a constant longitudinal wave velocity of 5920 m/s ± 30 m/s through a stress-relieved microstructure, while fine-lapped scanning faces eliminate couplant variation and acoustic noise.
FEATURES
Low-alloy forged carbon steel or stainless steel options, Ra ≤ 0.8 µm surface finish, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
IIW Type 1 Block
Standardized primary ultrasonic reference block manufactured according to International Institute of Welding (IIW), EN ISO 2400, and ASTM E164 specifications for shear and longitudinal wave time-base calibration, angle beam probe index point verification, beam angle checks, and flaw detector sensitivity setup.
- IIW & ISO 2400 Angle Beam Transducer Probe Index Point & Refracted Angle Verification
- Shear Wave & Longitudinal Wave Time-Base Calibration (R100 Radius)
- A-Scan Flaw Detector Gain Sensitivity & DAC / TCG Curve Setup
- Normal Beam Transducer Dead Zone, Near-Surface Resolution & Penetration Audits
IIW Type 2 Block
BENEFITS
Combines extended sound-path range verification, beam refraction angle determination, and probe index checks in a single setup via an integrated R50 radius cut-out and extra side-drilled holes.
FEATURES
Full compliance with ASTM E164 and IIW Type 2 modified standards, precision-ground R100 and R50 radii, 50 mm reference cylinder aperture, multiple SDHs, and slotted quadrant notch.
BENEFITS
Immediately flags wedge face wear and refracted angle shifts via dual high-contrast angular scales, backed by accredited reports ensuring seamless acceptance during third-party audits.
FEATURES
Wear-resistant laser-etched 30° to 60° dual index scales, authentic Sonatest laser branding, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Eliminates spurious internal reflections and grain scatter through a stress-relieved microstructure, ensuring a constant 5920 m/s ± 30 m/s longitudinal velocity and smooth probe seating.
FEATURES
Available in low-alloy forged 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, ±0.01 mm face parallelism, and heavy-duty protective carrying case.
IIW Type 2 Block
Modified international ultrasonic calibration block manufactured in accordance with ASTM E164 and IIW Type 2 specifications, incorporating both R100 and R50 curved reflectors, side-drilled holes, and reference notches for calibrating angle beam probe index points, refracted angles, time-base screen range, and dead zone resolution.
- ASTM E164 & IIW Type 2 Angle Beam Probe Index Point & Refracted Angle Verification
- Dual-Radius (R100 & R50) Shear and Longitudinal Wave Time-Base Calibration
- A-Scan Flaw Detector Gain Sensitivity, Attenuation & DAC / TCG Curve Setup
- Normal Beam Transducer Dead Zone, Near-Surface Resolution & Penetration Audits
PAUT IIW Block
BENEFITS
Performs comprehensive verification for Phased Array S-Scan and E-Scan beams, calibrating probe index points, wedge delay, Angle Corrected Gain (ACG), and Time Corrected Gain (TCG).
FEATURES
Full compliance with EN ISO 18563, EN ISO 19285, and ASME Sec V, vertically aligned multi-depth side-drilled holes (SDHs), dual-stepped R50 / R100 radii, rear V-notch reflector, and dual 30°–70° angular index scales.
BENEFITS
Ensures unconditional QA/QC acceptance during nuclear, aerospace, and energy audits via accredited reports detailing exact CMM-verified hole depths, centerlines, and radii coordinates.
FEATURES
Wear-resistant high-contrast laser-etched angular scales, permanent part number, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring optimal couplant retention and stable transmission for multi-element array transducers.
FEATURES
Available in low-alloy 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm parallelism tolerance, and heavy-duty protective carrying case.
PAUT IIW Block
Specialized Phased Array ultrasonic reference block designed in compliance with ASME Section V and EN ISO 18563 standards, featuring dual radii (R50/R100), vertically aligned side-drilled holes, a rear V-notch, and precision angular scales for comprehensive PAUT beam steering, ACG, TCG, and wedge delay calibration.
- Phased Array Ultrasonic (PAUT) Wedge Delay & Probe Index Point Verification
- Angle Corrected Gain (ACG) & Time Corrected Gain (TCG) Multi-Angle Sensitivity Calibration
- Sectorial Scan (S-Scan) & Electronic Scan (E-Scan) Beam Steering Linearity Checks
- Critical Pressure Piping, Vessel & Structural Weld Phased Array In-Service Audits
Type A Phased Array Block
BENEFITS
Provides complete verification for Phased Array S-Scan sectorial sweeps, calibrating probe index points, Angle Corrected Gain (ACG), Time Corrected Gain (TCG), and wedge delay on a single standardized setup.
FEATURES
Conforms fully to ASTM E2491 and ASME Section V, dual curved radius reflectors, multi-depth side-drilled hole (SDH) clusters, and high-precision laser-etched alignment index lines.
BENEFITS
Delivers verified documentation for critical aerospace, nuclear, and petrochemical QA/QC audits through accredited reports certifying exact CMM-measured hole depths, cluster pitches, and radii.
FEATURES
Genuine Sonatest laser branding, authentic part number (148305-01), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal noise, while fine-lapped contact faces maintain uniform couplant thickness for multi-element array transducers.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm surface finish, strict ±0.01 mm face parallelism, and heavy-duty fitted transport case.
Type A Phased Array Block
Standardized Phased Array ultrasonic calibration block manufactured in strict accordance with ASTM E2491 and ASME Section V specifications, featuring curved radii and multiple side-drilled hole arrays for calibrating beam steering capability, beam profile, ACG, TCG, and wedge delay.
- ASTM E2491 Phased Array Transducer Beam Steering & Angle Verification
- Angle Corrected Gain (ACG) Sensitivity Balancing Across Sectorial Sweep Angles
- Time Corrected Gain (TCG) Curve Construction via Multi-Depth Side-Drilled Holes
- Wedge Delay Measurement, Probe Index Verification & Focal Law Quality Audits
Type B / ASTM E2491 Phased Array Block
BENEFITS
Comprehensively benchmarks Phased Array beam-steering capabilities, angular resolution, flaw discrimination limits, and focal zone boundaries using precision-pitched hole arcs.
FEATURES
Full compliance with ASTM E2491 and ASME Section V, circular arc-patterned micro side-drilled holes (SDH), vertical-axis depth reference arrays, and top-surface alignment notch.
BENEFITS
Delivers certified verification for advanced aerospace, nuclear, and defense QA/QC audits via test reports detailing exact CMM-measured coordinates for each patterned reflector hole.
FEATURES
Authentic Sonatest laser branding, explicit standard and part identification (CALBLK-SPC-102-01), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal scatter and grain noise, ensuring stable couplant retention and uniform sound transmission for multi-element probes.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
Type B / ASTM E2491 Phased Array Block
Specialized Phased Array ultrasonic assessment block manufactured in accordance with ASTM E2491 specifications, featuring radial arc arrays and linear patterns of side-drilled holes designed for evaluating phased array probe steering capability, angular resolution, focal limits, and element performance.
- ASTM E2491 Phased Array Angular Resolution & Beam Steering Limits Verification
- GeneratorsTransducer Focal Zone, Beam Width & Sound Field Characterization
- Near-Surface and Deep Angular Defect Discrimination & Sizing Benchmarking
- Advanced Aerospace, Nuclear & High-Integrity Critical Component PAUT Audits
PACS Block
BENEFITS
Performs velocity, wedge delay, Angle Corrected Gain (ACG), and depth-dependent TCG sensitivity calibration in a single compact setup, ideal for thin-wall pipes and miniature PAUT probes.
FEATURES
Full compliance with AWS D1.1/D1.5, ASME Section V, and API specifications, dual-radii curved reflectors, staggered transverse side-drilled holes (SDH), precision EDM notch, and micro-ground scanning faces.
BENEFITS
Ensures unconditional QA/QC acceptance during international energy and oil & gas audits through certified documentation detailing exact CMM-verified radii, hole depths, and notch dimensions.
FEATURES
Laser-etched part identification, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring optimal couplant retention and consistent signal transmission for phased array transducers.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm surface finish, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
PACS Block
Standardized multi-purpose ultrasonic reference block engineered specifically for Phased Array ultrasonic testing (PAUT), featuring concentric curved radii, staggered side-drilled holes, and an EDM reference notch for calibrating sound velocity, wedge delay, sensitivity (ACG), and Time Corrected Gain (TCG) in structural and pipe weld inspections.
- Phased Array Sound Velocity Calibration & Probe Wedge Delay Measurement
- Multi-Angle Sensitivity (ACG) & Time Corrected Gain (TCG) Curve Construction
- Small-Bore Piping, Boiler Tube & Pipeline Girth Weld PAUT Audits (COBRA Scanners)
- AWS D1.1 / ASME Section V Phased Array Tooling & Procedure Qualifications
Boiler Tube Block
BENEFITS
Calibrates sweep range, wedge delay, DAC/TCG curves, and notch sensitivity for miniature angle beam transducers and pipe scanners inspecting cramped boiler tubes and thin-wall tubing.
FEATURES
Full compliance with ASME Section I, ASME Section V, and EN ISO specifications, 3-tier side-drilled holes (SDH), curved radius end-reflector, precision EDM surface/root notches, and ground scanning faces.
BENEFITS
Delivers verified compliance for power utility and boiler QA/QC audits via certified reports detailing exact CMM-measured hole depths, notch profiles, and radius coordinates.
FEATURES
Permanent laser-etched part identification (CALBLK-SPC-105-01), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Eliminates sound velocity and attenuation discrepancies by utilizing alloys matching actual boiler tube grades, while thermal stress relief prevents parasitic internal scatter.
FEATURES
Available in Carbon Steel (SA-178 / SA-210), Low-Alloy Steels (T11 / T22), Stainless Steel, or custom boiler grades, Ra ≤ 0.8 µm fine-ground finish, and rugged protective case.
Boiler Tube Block
Specialized ultrasonic reference block engineered according to ASME Section I and Section V specifications for inspecting boiler tubes and small-diameter piping welds, featuring 3 staggered side-drilled holes (SDH), a curved radius end-reflector, and EDM calibration notches for range, DAC/TCG, and sensitivity setup.
- Boiler Waterwall, Superheater & Economizer Tube Weld Ultrasonic Inspection
- Small-Diameter & Thin-Wall Piping DAC / TCG Sensitivity Curve Construction (3 x SDH)
- Miniature Shear Wave Probe & Phased Array Scanner Wedge Delay / Range Setup
- Root Pass & Near-Surface Lack of Penetration (LOP) Notch Reflection Benchmarking
AMK / MPAUT Block
BENEFITS
Performs rapid wedge delay, sound velocity, Angle Corrected Gain (ACG), and depth-dependent TCG sensitivity calibration for miniature PAUT probes in restricted-access inspections.
FEATURES
Full compliance with ASME Section V and EN ISO 18563 standards, dual-stepped curved radii, 4-tier vertically aligned side-drilled holes (SDH), and precision-ground scanning faces.
BENEFITS
Ensures unconditional QA/QC acceptance during nuclear, aerospace, and oil & gas audits with certified test reports detailing exact CMM-verified reflector coordinates and radii.
FEATURES
Authentic Sonatest laser branding, explicit part number (CALBLK-SPC-104-01), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal scatter and grain noise, maintaining uniform couplant retention for high-frequency miniature array transducers.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm surface finish, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
AMK / MPAUT Block
Compact, multi-target Phased Array ultrasonic reference block manufactured to ASME Section V and EN ISO 18563 specifications, engineered for calibrating miniature PAUT probes, verifying beam index points, wedge delay, Angle Corrected Gain (ACG), and Time Corrected Gain (TCG) in restricted-access inspections.
- Miniature Phased Array Probe Wedge Delay & Acoustic Velocity Calibration
- Angle Corrected Gain (ACG) Multi-Angle Sensitivity Balancing (S-Scan)
- Vertical-Axis Side-Drilled Hole Time Corrected Gain (TCG) Curve Construction
- Small-Bore Piping, Tubing & Restricted-Access Component PAUT Audits
NAVSHIPS 4 Hole
BENEFITS
Establishes accurate Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves complying with naval and military NDT standards via 4 precision side-drilled holes.
FEATURES
Full compliance with NAVSHIPS 0900-006-3010 and MIL-STD-271, 4 staggered transverse side-drilled holes (3/64″ dia.), laser-etched depth/distance coordinates, and fine-ground scanning surfaces.
BENEFITS
Provides verified documentation for military shipyards, defense contractors, and NAVSEA audits through certified reports detailing exact CMM-measured hole depths and axial locations.
FEATURES
Wear-resistant laser-etched part identification, unique serial number (S/N), explicit coordinate markings, EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Thermal stress relief eliminates parasitic internal reflections and grain scatter, ensuring optimal couplant retention and stable signal transmission across extended scanning distances.
FEATURES
Available in 1018 Carbon Steel, HY-80 / HY-100 naval hull steels, or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground finish, strict ±0.01 mm face parallelism, and heavy-duty protective case.
NAVSHIPS 4 Hole
Standardized ultrasonic reference block manufactured in strict accordance with NAVSHIPS 0900-006-3010 Section 6 and MIL-STD-271 specifications, featuring 4 precision side-drilled holes at staggered depths and distances for shear wave distance amplitude correction (DAC), sensitivity calibration, and flaw sizing in naval and defense applications.
- NAVSHIPS 0900-006-3010 & MIL-STD-271 Ultrasonic Flaw Detector Calibration
- 4-Hole Distance Amplitude Correction (DAC) & Time Corrected Gain (TCG) Setup
- Angle Beam Sound Path Distance & Depth-Dependent Sensitivity Verification
- Naval Shipyard, Submarine Hull & High-Integrity Defense Structure Weld Audits
NAVSHIPS 6 Hole
BENEFITS
Establishes extended-range, high-resolution Distance Amplitude Correction (DAC) and Time Corrected Gain (TCG) curves complying with naval standards via 6 precision-located side-drilled holes.
FEATURES
Full compliance with NAVSHIPS 0900-006-3010 Section 6 and MIL-STD-271, 6 staggered transverse side-drilled holes (3/64″ dia.) across multiple depth planes, laser-etched coordinate scales, and fine-ground scanning surfaces.
BENEFITS
Delivers certified documentation for military shipyards, defense contractors, and NAVSEA audits through test reports detailing exact CMM-measured depths and axial positions for all 6 target reflectors.
FEATURES
Wear-resistant laser-etched part identification, unique serial number (S/N), explicit coordinate markings, EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Thermal stress relief eliminates parasitic internal reflections and grain scatter, ensuring optimal couplant retention and stable signal transmission across extended scanning distances.
FEATURES
Available in 1018 Carbon Steel, HY-80 / HY-100 naval hull steels, or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground finish, strict ±0.01 mm face parallelism, and heavy-duty protective case.
NAVSHIPS 6 Hole
Extended-range ultrasonic reference block manufactured in strict accordance with NAVSHIPS 0900-006-3010 Section 6 and MIL-STD-271 specifications, incorporating 6 precision side-drilled holes at staggered depths and distances for comprehensive shear wave DAC/TCG calibration, distance amplitude evaluation, and flaw sizing in naval and defense applications.
- NAVSHIPS 0900-006-3010 & MIL-STD-271 Extended-Range Flaw Detector Calibration
- 6-Hole Multi-Point Distance Amplitude Correction (DAC) & TCG Curve Generation
- Deep Sound Path Distance & Depth-Dependent Sensitivity Evaluation in Heavy Sections
- Naval Shipyard, Submarine Hull & Critical Marine Defense Structure Weld Audits
ASTM E127 Area Amplitude
BENEFITS
Verifies ultrasonic flaw detector area-amplitude linearity, gain sensitivity, and flaw sizing thresholds by evaluating reflections from varying FBH diameters at a constant metal travel distance.
FEATURES
Full compliance with ASTM E127 and ASTM E428, precision-machined Flat-Bottom Holes (FBH) from 1/64″ to 8/64″ (No.1 through No.8), standardized 2-inch outer diameter cylinders, and fine-ground scanning faces.
BENEFITS
Provides verified compliance for aerospace and nuclear QA/QC audits via certified reports detailing exact optical/CMM-measured hole diameters, bottom flatness, and metal travel distances.
FEATURES
Laser-etched hole size (#1–#8), FBH diameter, travel distance, alloy grade, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized dimensional calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring a high signal-to-noise ratio (SNR) matching critical flight-grade alloys.
FEATURES
Available in Aerospace Aluminum (7075-T6 / 2024-T4), 4340 Alloy Steel, Titanium, or Stainless Steel, Ra ≤ 0.4 µm mirror-ground entry surfaces, and fitted foam-lined heavy-duty case.
ASTM E127 Area Amplitude
Standardized ultrasonic calibration block set manufactured in accordance with ASTM E127 and ASTM E428 specifications, consisting of cylindrical blocks with flat-bottom holes (FBH) ranging from No.1 (1/64″) to No.8 (8/64″) at a constant metal travel distance to calibrate flaw detector area-amplitude linearity, gain sensitivity, and flaw sizing capabilities.
- ASTM E127 / ASTM E428 Area-Amplitude Linearity Verification & Sensitivity Calibration
- Flat-Bottom Hole (FBH) Echo Amplitude Sizing & Equivalent Defect Cross-Section Benchmarking
- Longitudinal Wave Transducer Beam Symmetry & Pulse-Echo Performance Audits
- Aerospace Forgings, Critical Rotors & Nuclear Grade Component Ultrasonic Inspections
30 FBH Resolution Blocks
BENEFITS
Verifies ultrasonic transducer dead zone, pulse-echo axial resolution, and near-field flaw discrimination thresholds by resolving distinct reflections from shallow-depth flat-bottom holes.
FEATURES
Full compliance with ASTM E127 and ASTM E428 standards, precision-machined micro flat-bottom hole (FBH) targets, standardized 2-inch cylindrical diameter, and fine-lapped acoustic entry surfaces.
BENEFITS
Ensures unconditional QA/QC acceptance during aerospace, defense, and nuclear audits via certified test reports detailing exact CMM- and optically verified hole diameters, bottom flatness, and metal travel.
FEATURES
Permanent laser-etched identification showing hole size, metal travel distance, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized dimensional calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic grain scatter and internal reflections, providing an optimal signal-to-noise ratio (SNR) for high-frequency normal beam probes.
FEATURES
Available in Flight-Grade Aluminum (7075-T6 / 2024-T4), 4340 Alloy Steel, Titanium, or Stainless Steel, Ra ≤ 0.4 µm mirror-ground entry face, and fitted protective transport case.
30 FBH Resolution Blocks
Precision-engineered cylindrical reference block manufactured in accordance with ASTM E127 and ASTM E428 specifications, featuring a Flat-Bottom Hole (FBH) configuration designed to evaluate ultrasonic flaw detector near-surface resolution, transducer dead zone, and axial flaw discrimination in critical aerospace and nuclear components.
- ASTM E127 / ASTM E428 Transducer Near-Surface Resolution & Dead Zone Verification
- Axial & Lateral Flaw Discrimination Benchmarking via Flat-Bottom Hole (FBH) Reflectors
- High-Frequency Longitudinal Normal Beam Pulse-Echo Sensitivity Calibration
- Aerospace Critical Turbine Disks, Shafts & Nuclear Forging Ultrasonic Audits
RC Block
BENEFITS
Evaluates the resolving power and flaw discrimination capabilities of angle beam transducers by distinguishing closely spaced reflectors on the A-scan display.
FEATURES
Full compliance with AWS D1.1 (Structural Welding Code) and AWS D1.5 (Bridge Welding Code), dedicated 3-hole side-drilled hole (SDH) sets for 45, 60, and 70 angles, and precision-ground scanning faces.
BENEFITS
Guarantees full acceptance during AWS Certified Welding Inspector (CWI) audits and structural steel QA/QC reviews via accredited reports certifying exact CMM-verified hole pitches and depths.
FEATURES
Permanent laser-etched part identification, unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal scatter and grain noise, ensuring stable couplant retention and consistent signal transmission for angle beam wedges.
FEATURES
Manufactured from 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
RC Block
Standardized angle-beam resolution reference block manufactured in strict accordance with AWS D1.1 and AWS D1.5 structural welding codes, featuring dedicated clusters of side-drilled holes for evaluating the resolving power of 45, 60, 70 shear wave search units.
- AWS D1.1 & AWS D1.5 Angle Beam Transducer Resolution Capability Verification
- Flaw Separation & Discrimination Checks for 45, 60, 70 Shear Wave Probes
- Ultrasonic Flaw Detector Time-Base Linearity & Wedge Damping Audits
- Structural Steel, Bridge Girders & Heavy Infrastructure Weld Inspection Qualification
DS Block
BENEFITS
Rapidly calibrates horizontal screen sweep range and reference gain sensitivity for straight beam (longitudinal) transducers at 2-inch and 4-inch metal travel distances.
FEATURES
Full compliance with AWS D1.1 (Structural Welding Code) and AWS D1.5 (Bridge Welding Code), stepped inverted-U reflector notch, 2-inch and 4-inch calibrated sound paths, and fine-ground scanning surfaces.
BENEFITS
Guarantees unconditional acceptance during AWS Certified Welding Inspector (CWI) reviews and structural QA/QC audits via certified reports detailing exact CMM-verified step heights and face parallelism.
FEATURES
Permanent wear-resistant laser-etched part identification (CALBLK-AWS-002), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional calibration certificate.
established by ASTM.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring stable couplant retention and consistent signal transmission for longitudinal transducers.
FEATURES
Manufactured from 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
DS Block
Standardized straight beam ultrasonic calibration block manufactured in strict accordance with AWS D1.1 and AWS D1.5 specifications, featuring stepped reference surfaces at 2-inch and 4-inch distances for horizontal screen sweep range calibration and flaw detector sensitivity adjustments.
- AWS D1.1 & AWS D1.5 Straight Beam Transducer Distance & Sweep Range Calibration
- Horizontal Time-Base Linearity Calibration at 2-inch & 4-inch Metal Travel Distances
- Straight Beam Flaw Detector Gain Sensitivity & Backwall Echo Attenuation Audits
- Structural Steel, Bridge Fabrications & Plate Material Ultrasonic Quality Verification
DSC Block
BENEFITS
Performs single-setup verification of angle beam probe index points, actual refracted angles, horizontal time-base sweep range, and reference gain sensitivity.
FEATURES
Full compliance with AWS D1.1 (Structural Welding Code) and AWS D1.5 (Bridge Welding Code), 1-inch and 3-inch calibrated radius arcs, laser-etched 45-60-70 scales, 3/32″ side-drilled hole (SDH), and reference notch.
BENEFITS
Guarantees unconditional acceptance during AWS Certified Welding Inspector (CWI) reviews and structural audits via certified reports detailing exact CMM-verified radii, angles, and hole coordinates.
FEATURES
Wear-resistant permanent laser-etched identification (CALBLK-AWS-003), unique serial number (S/N), explicit angle guide markings, EN 10204 3.1 material compliance, and serialized CMM dimensional test certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring stable couplant retention and consistent signal transmission for shear wave wedges.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
DSC Block
Standardized shear-wave ultrasonic calibration block manufactured in strict accordance with AWS D1.1 and AWS D1.5 structural welding codes, featuring 1-inch and 3-inch curved radii, precision angle index markings , a 3/32″ side-drilled hole, and an EDM notch for comprehensive probe index, beam angle, sweep range, and sensitivity calibration.
- AWS D1.1 & AWS D1.5 Angle Beam Transducer Probe Index Point Verification
- Actual Refracted Angle Determination & Wedge Face Wear Checks
- Dual-Radius (1-inch & 3-inch) Shear Wave Screen Sweep Range Calibration
- Side-Drilled Hole & Notch Sensitivity Setup for Structural Steel & Bridge Weld Audits
DC Block
BENEFITS
Performs rapid, accurate verification of angle beam probe index points and horizontal screen sweep range using calibrated 1-inch and 2-inch concentric radius surfaces.
FEATURES
Full compliance with AWS D1.1 (Structural Welding Code) and AWS D1.5 (Bridge Welding Code), 1-inch and 2-inch concentric curved radius reflectors, and precision-ground scanning faces.
BENEFITS
Guarantees unconditional acceptance during AWS Certified Welding Inspector (CWI) audits and field QA/QC reviews through certified reports detailing exact CMM-verified radius dimensions.
FEATURES
Permanent wear-resistant laser-etched part identification (CALBLK-AWS-004), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional verification certificate.
BENEFITS
Stress-relieved microstructural matrix eliminates internal grain scatter and spurious reflections, ensuring stable couplant retention and consistent signal transmission for shear wave wedges.
FEATURES
Manufactured from 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
DC Block
They are a base material in applications that do not require any formability beyond minimal bending and/or roll-forming.
- AWS D1.1 & AWS D1.5 Angle Beam Transducer Probe Index Point Verification
- Dual-Radius (1-inch & 2-inch) Shear Wave Screen Sweep Range & Distance Calibration
- Ultrasonic Flaw Detector Time-Base Linearity & Delay Calibration in Structural Welds
- Structural Steel Framing, Bridge Components & Field Welding Quality Audits
Sc Block
BENEFITS
Verifies actual refracted beam angles and reference gain sensitivity for 45, 60, 70 angle beam search units in strict accordance with AWS codes.
FEATURES
Full compliance with AWS D1.1 (Structural Welding Code) and AWS D1.5 (Bridge Welding Code), two 0.0625″ (1.59 mm) diameter transverse side-drilled holes (SDH), laser-etched 45, 60, 70 index lines, and fine-ground scanning faces.
BENEFITS
Ensures unconditional QA/QC acceptance during AWS Certified Welding Inspector (CWI) reviews and structural audits via certified test reports detailing exact CMM-verified hole coordinates and angle indices.
FEATURES
Permanent wear-resistant laser-etched part identification, unique serial number (S/N), explicit angle guide markings, EN 10204 3.1 material compliance, and serialized CMM dimensional calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal reflections and grain scatter, ensuring stable couplant retention and consistent signal transmission for angle beam wedges.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
Sc Block
Standardized shear-wave ultrasonic reference block manufactured in strict accordance with AWS D1.1 and AWS D1.5 structural welding codes, featuring two 0.0625″ (1.59 mm) diameter side-drilled holes and precision angle index markings for calibrating angle beam flaw detector sensitivity and verifying refracted angles.
- AWS D1.1 & AWS D1.5 Angle Beam Transducer Sensitivity Calibration
- Actual Refracted Angle Verification & Wedge Wear Check
- Transducer Beam Index Point Verification & Flaw Detector Time-Base Calibration
- Structural Steel Framing, Infrastructure Welds & Field Ultrasonic Quality Audits
AWS PACS Block
BENEFITS
Performs standardized calibration of sound velocity, wedge delay, Angle Corrected Gain (ACG), and depth-dependent TCG curves for PAUT structural steel and bridge weld inspections per AWS codes.
FEATURES
Full compliance with AWS D1.1/D1.5 and ASME Section V, dual concentric curved radius reflectors, precision-located multi-depth side-drilled holes (SDH), and fine-ground scanning surfaces.
BENEFITS
Ensures unconditional acceptance during AWS Certified Welding Inspector (CWI) audits and structural steel QA/QC reviews through certified reports detailing exact CMM-verified hole depths and radii.
FEATURES
Permanent wear-resistant laser-etched part identification (CALBLK-AWS-005), unique serial number (S/N), EN 10204 3.1 material compliance, and serialized CMM dimensional calibration sheet.
BENEFITS
Stress-relieved microstructural matrix eliminates parasitic internal scatter and grain noise, ensuring stable couplant retention and uniform signal transmission across all active array elements.
FEATURES
Available in 1018 Carbon Steel or Stainless Steel alloys, Ra ≤ 0.8 µm fine-ground scanning surfaces, strict ±0.01 mm face parallelism, and heavy-duty protective carrying case.
AWS PACS Block
Standardized Phased Array ultrasonic calibration block manufactured in strict accordance with AWS D1.1 and AWS D1.5 structural welding specifications, featuring dual concentric radii and multi-depth side-drilled holes for calibrating acoustic velocity, wedge delay, sensitivity (ACG), and Time Corrected Gain (TCG) in structural and bridge weld examinations.
- AWS D1.1 & AWS D1.5 Phased Array Sound Velocity & Probe Wedge Delay Calibration
- Multi-Angle Sensitivity (ACG) & Time Corrected Gain (TCG) Curve Construction
- Structural Steel Framing, Bridge Girders & Heavy Fabrication PAUT Weld Audits
- Sectorial Scan (S-Scan) and Linear Scan Focal Law Verification on Structural Welds