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Wilson Rockwell hardness test blocks set the standard for the industry and are made from the highest quality material to insure the most uniform and repeatable Rockwell test blocks available. A comprehensive variety of scales and hardness test blocks are available to meet the wide ranges and hardness scales associated with Rockwell®, Brinell, Knoop and Vickers testing. All Wilson Rockwell hardness test blocks are calibrated in the Wilson Hardness Calibration Laboratory in Binghamton, NY. The Wilson lab is accredited to ISO/IEC 17025 by A2LA and the testers used in the calibration process undergo a stringent monitoring process using NIST traceable devices.

For the ultimate accuracy and performance in tester verification, calibration sets are available for most Rockwell scales.

100% inspection to ensure that every single Rockwell test block meets the physical requirements of ASTM (thickness, flatness, parallelism, surface roughness)
Benefits
  • We work directly with the steel and brass mills to specify the chemical composition
  • Our machining processes (grinding, lapping, polishing) are all done in house, at the site of calibration.
  • 100% inspection to ensure that every single test block meets the physical requirements of ASTM (thickness, flatness, parallelism, surface roughness)
  • Rockwell test blocks support NADCAP compliance
  • Specifications
    Wilson Rockwell Hardness Test Blocks Specifications
    Block size: Ø 2.4 in x 0.35 in (Ø 60mm x 9mm)
    Block weight: ±0.66 lbs (± 0.3kg)
    Certification: According to ISO 6508-3 & ASTM E18
    The Buehler-Wilson Hardness Calibration Laboratory is accredited to ISO / IEC 17025 by A2LA
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