Chemical Composition Of Steel Ball For Cement Mill

Release time：2021-10-12

Composition of low chromium cast steel balls  

Using 2.5%~2.7%C (carbon), 0.5%~1.0%Si(silicon), 1.0% ~ 1.5% Mn (manganese),  

2.2%-2.5% Cr (Cr) low chromium cast iron grinding ball, adding 0.005% ~ 0.030% B (boron),  

0.15%~ 0.20% rare earth and  

0. 10%-0.15% alkali earth element microalloying and metamorphism treatment can improve the hardenability of grinding balls and improve the microstructure and properties of grinding balls.