The hardness of cemented carbide is typically measured using the Rockwell hardness scale (HRA), due to its simplicity, speed, and non-destructive nature. Its hardness range typically falls between HRA85 and HRA93.
The HRC scale (Rockwell C scale) is suitable for lower-hardness materials (such as hardened steel) and has a test range of 20-70 HRC. Materials exceeding 67 HRC require the HRA scale.
Therefore, when customers are accustomed to using HRC for hardness determination, conversion between different hardness scales is often necessary.
Important Note: Hardness conversion tables are empirical relationships based on extensive experimental data and are not precise mathematical formulas. For critical applications, testing should be performed using a single hardness scale or by referring to the corresponding international standard (such as ASTM E140).If you have any other questions about tungsten carbide hardness,please contact
OSTON CARBIDE.
