The hardness of the steel ball is determined by the steel balls made of different materials. Common steel balls are stainless steel balls, bearing steel balls, carbon steel balls, and hard alloy steel balls. Steel Balls Manufacturer will introduce what causes steel balls of different materials to have different hardness?
The hardness of the steel ball is directly affected by the heat treatment process, that is, quenching and tempering. In the heat treatment process, after the bearing steel ball is quenched and tempered, the internal metallographic structure changes, so the hardness also changes. However, the stainless steel ball cannot be heat-treated. Since stainless steel is an austenitic steel, its own conditions restrict the heat-treatment process.
Why are the hardness of steel balls different? Due to the effect of heat treatment, the hardness of the bearing steel ball can reach HRC55-HRC62. The hardness of stainless steel balls that cannot be heat-treated is HRC28-HRC35. The application range of steel balls with different hardness is not the same. When buying steel balls, you can choose to use steel balls of different materials according to your environment.