1 Material density effect: steel ball, cast iron ball, alloy steel ball, etc., the density of different materials is different, the density of steel is larger than that of cast iron, and the alloy steel is different depending on the density and content of the main alloying elements.
2 steel ball manufacturing method: rolling and forging steel balls have dense structure, so the density is large, and the cast steel balls, cast iron balls or cast alloy balls are not dense, even have pores, so the density is small. some.
3 Metallographic effects of steel balls: The density of different crystal structures such as martensite, austenite, bainite and ferrite is also different, which also affects the crystal fineness.
4 chemical composition factors: steel ball products due to the chemical components such as iron, carbon, chromium, manganese, sulfur, phosphorus and other components, the steel ball hardness, impact wear has varying degrees of impact, in general, When the amount of chromium is large, the steel ball has high wear resistance.
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