HR15N Test Block


We offer the most affordable and highest quality Hardness Test Blocks in the industry; each block comes with a protective container wrapped in protective rust resistant paper for storage and long-term use. All the blocks are calibrated by an accredited ISO 17025 lab and will meet or exceed all automotive and aerospace standards and current ASTM E18 Standard Test Methods for Rockwell Hardness. Appearance of block and material of block may vary by hardness scale and range. Every one of our test blocks is calibrated and traceable to NIST, contact us for sample certification.