Yamamoto metal hardness test blocks serve as precision reference standards for verifying hardness testers. Manufactured with tight tolerances and minimal variation (as low as ±0.1 HRC in some ranges), they provide stable, traceable benchmarks across Rockwell, Vickers, and other scales.
Yamamoto’s Microstructure Standard Kit (Group 6) provides a selection of metal specimens with expertly prepared microstructures related to surface modification of metals. Manufactured under precise heat-treatment and metallographic conditions, it includes photographs and a guide manual. Ideal for metallurgical labs, quality assurance, and advanced material science education.
The Yamamoto Spark Tester Standard Kit enables rapid, nondestructive identification of steel types via spark pattern analysis. Compliant with JIS G0566:1980, the kit includes calibrated standard blocks whose chemical composition is strictly controlled. It aids material control, heat treatment, and quality assurance in forging and metallurgical workflows.
