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Steel ball manufacturer

Size: 20mm-150mm

Material: B2, B3, B6, 45#, 40Cr, 42CrMo, 65MN, 60MN,

Uniform Hardness;

High Wear Resistance;

Low Breakage Rate;

Without loss of round;

High impact toughness;

Breakage rate: ＜1%

Annual production is over 100.000tons;

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Product Details

Grinding media ball manufacturer with 28 years in China, annual production capacity of 100,000 tons. products are exported to Brazil, Mexico, Ghana, Chile, Peru, South Africa, Cote d 'Ivoire, Mali, Mauritania, Ecuador, Philippines and other countries, Sign annual contracts with many mines for 3-5 years.

Free sample can be supply for test.

Chemical composition of Grinding Ball:

Materials	C%	Si%	Mn%	P%	S%	Cr%
B2	0.70-0.85	0.17-0.37	0.70-1.00	≤0.035	≤0.035	0.4-0.6
B2-1	0.55-0.70	0.15-0.30	0.65-0.85	≤0.020	≤0.020	0.70-1.10
High Carbon B2	0.85-1.10	0.15-0.45	0.40-1.20	≤0.035	≤0.035	0.20-1.10
B3	0.58-0.66	1.70-1.90	0.68-0.80	≤0.030	≤0.030	0.78-0.90
45#	0.42-0.50	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.25max
B4	0.65-0.75	1.20-1.40	0.50-0.70	≤0.025	≤0.025	0.85-1.00
B6	0.75-0.90	0.17-0.37	0.8-1.02	≤0.035	≤0.035	0.88-0.98
B6-1	0.82-0.90	0.15-0.35	0.90-1.05	≤0.020	≤0.020	0.88-0.98
BU	0.95-1.05	0.15-0.35	0.95-1.05	≤0.025	≤0.025	0.45-0.55
1090	0.90-1.10	0.17-0.37	0.60-0.90	≤0.025	≤0.025	≤0.025
42CrMo	0.38-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.90-1.20
40Cr	0.37-0.45	0.20-0.40	0.50-0.80	≤0.035	≤0.035	0.80-1.10
65MN	0.62-0.70	0.17-0.37	0.90-1.20	≤0.035	≤0.035	≤0.25
60MN	0.57-0.65	0.17-0.37	0.70-1.00	≤0.035	≤0.035	≤0.25
50MN	0.48-0.56	0.17-0.37	0.70-1.00	≤0.035	≤0.035	≤0.25

Specification of Grinding Ball:

Diameter(mm)	Diameter Tolerance(mm)	Surface Hardness(HRC)	Impact Toughness(j/cm2)
Φ20	+2， —1	＞60HRC	≥12
Φ25
Φ30
Φ40
Φ50
Φ60	+3， —2
Φ70
Φ80
Φ90
Φ100	+4， —2
Φ110
Φ120		＞58HRC
Φ130		＞58HRC
Φ140	+4， —3	＞55HRC
Φ150	+4， —3	＞55HRC