Forged Grinding Balls

Products Description

Forged grinding ball is used in metal mining. The property- high anti impact value, good toughness and low breakage, indicates its excellent appliaction at Ming industry for SAG mill .

Application:

In mineral processing Industry, deal with various natural ores:
Iron Platinum Gold	Copper Bauxite Lead – Zinc	Rock phosphate Metal slag Coal

2. Sag mill

3.Ball mill with Dia over 6m

Chemical Elements

Material	Chemical Elements (%)
Material	C	Mn	Si	Cr	S	P
50MN	0.48-0.56	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
60MN	0.57-0.65	0.50-0.80	0.17-0.37	≤0.25	≤0.035	≤0.035
65MN	0.62-0.70	0.90-1.20	0.17-0.37	≤0.25	≤0.035	≤0.035
75Mn	0.72-0.92	0.70-1.20	0.17-0.37	0.4-0.6	≤0.035	≤0.035
75MnCr	0.70-0.85	0.70-0.80	0.17-0.37	0.2-0.7	≤0.03	≤0.03
75SiMn	0.70-0.90	0.70-1.20	0.4-0.8	≤0.25	≤0.03	≤0.03
B2	0.70-0.85	0.70-0.80	0.17-0.37	0.2-0.7	≤0.035	≤0.035
40Cr	0.37-0.44	0.50-0.80	0.17-0.37	0.8-1.10	≤0.035	≤0.035
45#	0.42-0.50	0.50-0.80	0.17-0.37	≤0.25	≤0.035	≤0.035

Physical Property & Microstructure

Material	AK.J/cm2	Falling Ball Times	Surface HRC	Core HRC	Microstructure
50MN	≥12	≥10000	≥56	≥48	M+C
60MN	≥15	≥12000	≥58	≥50	M+C
65MN	≥15	≥12000	≥60	≥50	M+C
75Mn	≥17	≥12000	≥60	≥52	M+C
75MnCr	≥16	≥12000	≥60	≥50	M+C
75SiMn	≥17	≥12000	≥60	≥54	M+C
B2	≥15	≥12000	≥60	≥50	M+C
45#	≥12	≥10000	≥52	≥45	M+C
M-Martensite C-Carbide

Specification

Size(mm) Tolerance(mm) Weight(kg/pc) Quantity(pcs/ton)

Φ20 +2
-1 0.032 31250

Φ25 0.064 15625

Φ30 0.11 9090

Φ40 0.263 3802

Φ50 0.513 1949

Φ60 +3
-2 0.888 1126

Φ70 1.41 709

Φ80 2.104 475

Φ90 2.996 333

Φ100 4.11 243

Φ110
+4
-2
5.457 182

Φ120 7.102 140

Φ130 9.03 110

Φ140 +4
-3 11.278 88

Φ150 13.871 72

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Size(mm)	Tolerance(mm)	Weight(kg/pc)	Quantity(pcs/ton)
Φ20	+2 -1	0.032	31250
Φ25		0.064	15625
Φ30		0.11	9090
Φ40		0.263	3802
Φ50		0.513	1949
Φ60	+3 -2	0.888	1126
Φ70		1.41	709
Φ80		2.104	475
Φ90		2.996	333
Φ100		4.11	243
Φ110	+4 -2	5.457	182
Φ120		7.102	140
Φ130		9.03	110
Φ140	+4 -3	11.278	88
Φ150	+4 -3	13.871	72