​GCr15 bearing steel balls are often used to manufacture high-precision bearings, gears, universal joints, automobile engines and other high-quality parts. In the machinery manufacturing industry, GCr15 is widely used. Due to its moderate price, good processing performance, high wear resistance and other advantages, it has become the most widely used bearing steel in my country. In addition, GCr15 steel also has good hot workability and machinability, moderate hardenability, but poor weldability, sensitive to white spot formation, and temper brittleness.