Why are steel balls different in hardness? Do steel balls have different hardnesses?
The hardness of the steel ball is determined by the steel balls made of different materials. Common steel balls include stainless steel balls, bearing steel balls, carbon steel balls, and carbide steel balls. What is the factor that 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, the bearing steel ball is quenched and tempered, and its internal metallographic structure changes, so the hardness also changes. However, the stainless steel ball cannot be subjected to a heat treatment process. Since stainless steel is austenitic steel, the heat treatment process cannot be carried out due to its own conditions.
Why are steel balls different in hardness? Due to the 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. Steel balls with different hardness have different application ranges. When purchasing steel balls, you can choose to use steel balls of different materials according to the environment you use.
