China Cast Grinding Ball Dia70mm

High Resistance Casting Grinding Ball
Size from dia20mm to 120mm
Hardness: HRC58-65
Chemical composition (%) C: 2.0-3.0; Si: 1.0max; Mn: 0.5-1.5; Cr: 11-27 S: 0.10Max; P: 0.10Max; Ni 0-1.5
The major character is: High hardness, no deformation, no breakage, low wear rate, uniformity of hardness from surface to core. It is widely used in cement plants, mining industry, power stations etc.
Forged Grinding Steel Ball
Material 75MNCR
1. Size from dia 20mm to dia 150mm.
2. Chemical Composition(%): C 0.75-0.85, SI 0.17-0.35, MN 0.7-0.9 CR 0.4-0.6, AL 0.01-0.06 S/P 0.03max CU 0.2max NI 0.2MAX
3. Hardness: HRC60-65
4. Packing: By steel drums or flexible container bags
5. The grinding balls are widely used in the ball mill for mines, cement plants, power stations, chemical industries, etc.
6. It has the characters of: No breakage, good wear resistance, no deformation, uniformity of the hardness from surface to core.

PRODUCTSSIZEHARDNESSCHEMICAL COMPOSITION1) 65Mn Forged grinding ball 25mm-180mmHRC55-65 C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04Max; Cr: 0.25Max2) B2 Forged grinding ball 25mm-180mmHRC60-68C: 0.75-0.90; Si:0.17-0.37; Mn:0.7-0.9; P: 0.035 MAX; S: 0.035MAX; Cr:0.40-0.70. 3) High chrome cast grinding ball 12.7mm-120mm
HRC58-65Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max;4) Low chrome cast grinding ball 12.7mm-120mm
HRC47-55Cr:1-3; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max;5) Medium chrome cast grinding ball12.7mm-120mmHRC47-60Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max;