Classification of grinding steel balls

1. White cast iron with chromium as the main alloying element is referred to as chromium alloy cast iron, and the cast grinding ball with chromium alloy cast iron as the material is called chromium alloy cast iron grinding ball;

2. The cast grinding ball made of ductile iron is called ductile iron grinding ball: the matrix structure obtained by heat treatment is bainite ductile iron grinding ball; the matrix structure obtained by heat treatment is mainly martensite ductile iron grinding ball.

3. Steel balls made of round steel produced by steel mills are automatically controlled throughout the whole process, with uniform hardness of the steel balls, high core hardness, low crushing rate, and high impact value of the steel balls.

4. It is made by cutting and forging of train wheels. This kind of steel ball has low cost, but the core part of the steel ball has low hardness, is easy to break, and has poor wear resistance.

In addition, there are cast steel balls (high chromium balls, medium chromium balls, and low chromium balls), forged steel balls, rolled steel balls, and bearing steel balls. They can also be called grinding steel balls, that is to say, all steel balls engaged in grinding operations Both can be called grinding steel balls.

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