Sonatest calibration blocks are precision-engineered reference standards used to verify ultrasonic testing equipment performance. Manufactured to meet international codes, they support calibration of sensitivity, range, angle, resolution and flaw detection parameters across UT and PAUT inspections.

A complete range of UT calibration blocks including V1/IIW, V2, A2, Step Wedges, Radius Blocks and custom options. Machined from high-quality materials to strict tolerances, they allow technicians to validate instrument accuracy, set up flaw detectors correctly and ensure compliance with global NDT standards in both field and laboratory environments.

• UT probe and instrument calibration

• DAC/TCG setup and verification

• Shear-wave angle and range calibration

• Technician training and certification

• ISO, ASME, AWS & EN code compliance

• Field and laboratory UT system validation

Manufactured from high-grade steel or aluminum depending on standard

• Available in multiple standard types (V1/IIW, V2, A2, Step Block, Radius Blocks)

• Precision-machined to international specifications (ISO, EN, AWS, ASME)

• Suitable for UT, PAUT and TOFD setups

• Engraved reference dimensions for accurate repeatability

• High dimensional tolerance for consistent calibration

• Custom-designed blocks available upon request

• Compatible with all Sonatest UT instruments