The hardness of powder metallurgy products is usually high, and the specific value depends on the material composition and process conditions. For example, the hardness of some powder metallurgy steels can reach HRC60 or above, which is much higher than ordinary casting or forging materials. In addition, the hardness of DEX20 powder high-speed steel can reach HRC64 or above, while the hardness of ASP2030 powder metallurgy high-speed steel can reach HRC64-67.
Factors affecting the hardness of powder metallurgy
Material composition: The powder metallurgy process can prepare alloy materials with specific properties and hardness by adding alloying elements to the powder. For example, the chemical composition of DEX20 powder high-speed steel includes elements such as carbon, silicon, manganese, chromium, molybdenum, tungsten and vanadium, which contribute significantly to its high hardness.
Process conditions: The powder metallurgy process can accurately control the chemical composition and organizational structure of the material, thereby preparing products with fine grains and uniform organization. This fine organizational structure helps to improve the hardness and strength of the material.
Heat treatment: The heat treatment process has a significant effect on the hardness of powder metallurgy products. For example, DEX20 powder high-speed steel can be quenched and tempered to a hardness of over 64HRC.
