The difference between grinding steel balls and wear-resistant steel balls

Wear-resistant steel ball, as the name implies, is a wear-resistant steel ball. If you want to be wear-resistant, it needs high hardness. Generally, it must reach Rockwell hardness above HRC58. Only this kind of steel ball can truly achieve wear resistance, that is, the professional term low abrasion. In reality, many of the hardnesses lower than HRC58 are also called wear-resistant steel balls, which are actually not wear-resistant and have high abrasion.

Grinding steel balls, as the name suggests, are steel balls used to grind things, which is a kind of grinding medium. Therefore, the wear-resistant steel ball is also a kind of grinding steel ball, and the wear-resistant and non-wear-resistant steel balls belong to the grinding steel ball as long as they are used for grinding. For example, cast balls (high chromium balls, medium chromium balls, and low chromium balls), forged balls, rolled steel balls, etc. are used in a large amount.

Whether the grinding steel ball is wear-resistant, the important data is the hardness test, which can be tested with a Rockwell hardness tester. Practice shows that the service life of steel balls above HRC60 is twice that of HRC40-50.

Of course, it is not that the higher the hardness, the better. When buying grinding steel balls, it is necessary to judge what kind of steel balls to use according to the hardness of the object to be ground.

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