Casting Grinding Balls

We are capable to manufacture various kinds of casting steel grinding ball by the world advanced founding technology for raw ore, mature, coal, and cement clinker under a whole line process of melting, casting and heat treatment. It has the quality of superior wear-resistant.
low cr grinding ball chemical composition:
c si mn cr p s 　 　 　 　 　 hardness ak (mpa)
ti v gu re mg (hrc)
2.3-3.0 0.5-2.0 0.4~1.2 0.8~1.8 0.3
high cr grinding ball chemical composition:
c si mn cr p s hardness ak(j/cm2) microstructure times of falling balls
(hrc)
1.8-3.2 0.3-1.2 0.3-1.0 17-19.5 ≤0.1 ≤0.1 60-64 ≥2.5 m+c ≥10000
tolerance on diameter of ball
dia szie tolerance on diameter tolerance on non sphericity hardness of surface impact value (a k) remark
25 ± 2.5mm ± 1mm
30 ± 2.5mm ± 1mm
40 ± 2.5mm ± 1mm
50 ± 2.5mm ± 1mm
60 ± 3.0mm ± 2mm
70 ± 3.0mm ± 2mm
80 ± 3.0mm ± 2mm
90 ± 3.0mm ± 2mm
100 ± 3.0mm ± 2mm