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4” Forged Grinding Steel Ball

4" Forged Grinding Steel Ball

（1）Uniform hardness

（2）Unbreakable

（3）High wear resistance

（4）High impact value

（5）High combined efficiency of grinding mill

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Product Details

4”Forged Grinding Steel Ball

Shandong Jinchi Heavy Industry Joint-stock Co.,LTD is a professional manufacturer of 4” Forged Grinding Steel Ball products.from CHINA , specialized in providing wear-resistant solutions for the mining /cement /power/coal/ construction /chemical industry, in-depth 27 years of industry.We Supply different countries with IS09001 Quality Certification, OHSAS 18001 Occupational health and safety certification and ISO14001 environmental management system certification.

Performance

1)Uniform hardness

2)Unbreakable

3)High wear resistance

4)High impact value

5)High combined efficiency of grinding mill

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

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