Industrial High Performance forged grinding steel ball , AISI Standard and ISO9001

Brand Name:ZW

Certification:ISO9001:2008

Model Number:45#,60Mn B2,B3,B4,High Chrome,Low Chrome

Minimum Order Quantity:1 Ton

Delivery Time:10-20 days after order confirmation

Payment Terms:Western Union, D/P, D/A, L/C, T/T

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Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd

Verified Supplier

Location: Jinan Shandong China

Address: Puji Street, Zhangqiu District, Jinan City, Shandong Province,China

Supplier`s last login times: within 48 hours

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Product Details Company Profile

Product Details

Jinan Zhongwei is a leading producer of high chrome and forged Grinding Media Balls

supplied primarily to the platinum, copper and gold mining industries.

Grinding media Ball ( Forged Grinding Media Ball and Cast Grinding Media Ball )

As one of the leading grinding steel balls specialists in China, we Jinan Zhongwei can certainly assist you in buying grinding media balls that suit you company's paticular needs.

Type and Chemical Composition

1> Forged Grinding media Ball

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	0.70-1.0	0.17-0.37	≤0.25	≤0.035	≤0.035
65Mn	0.60-0.70	0.90-1.2	0.17-0.37	≤0.25	≤0.035	≤0.035
B2	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
Wear-resistant Alloy	0.50-0.65	0.4-1.0	1.4-1.8	0.9-1.2	≤0.03	≤0.03

2> Cast Grinding media Ball

Material	C	Si	Cr	Mn	S	P
Cr-22-32%	2.0-2.8	≤1.0	22-32	0.5-2.0	≤0.06	≤0.08
Cr-17-22%	2.0-2.8	≤1.0	17-22	0.5-2.0	≤0.06	≤0.08
Cr-15-17%	2.2-3.0	≤1.0	15-17	0.5-2.0	≤0.06	≤0.08
Cr-11-14%	2.2-3.2	≤1.0	11-14	0.5-2.5	≤0.06	≤0.08
Cr-5-10%	2.1-3.2	≤1.2	5-10	0.5-1.5	≤0.06	≤0.08
Cr-1.5-3.%	2.2-3.5	≤1.2	1.5-3.0	0.5-1.5	≤0.06	≤0.08

Physical Property

1> Forged Grinding media Ball

Material	Impact Test(Ak.J/cm²)	Endurance Test Times(5m/T)	Surface Hardness (Φ25mm- Φ60mm)	Core Hardness (Φ25mm- Φ60mm)	Surface Hardness (Φ70mm- Φ100mm)	Core Hardness (Φ70mm- Φ100mm)	Breakage
50Mn	≥12	≥10000	≥56	≥35	≥56	≥28	<1%
60Mn	≥13	≥10000	≥58	≥38	≥58	≥29	<1%
65Mn	≥15	≥12000	≥60	≥42	≥60	≥30	<1%
B2	≥17	≥12000	≥60	≥52	≥60	≥50	<1%
75SiMn	≥16	≥12000	≥60	≥50	≥60	≥48	<1%
Wear-resistant Alloy	≥17	≥12000	≥60	≥54	≥60	≥52	<1%

2> Cast Grinding media Ball

Material	Impact Test Ak.J/cm	Endurance Test times (5m)	Hardness (HRC)
			Diam25-60mm		Diam70-100mm
			Quenching	Unquenching	Quenching	Unquench ing
Cr-22-32%	≥4	≥10000	≥60	≥49	≥60	≥48
Cr-17-22%	≥4	≥10000	≥60	≥49	≥60	≥48
Cr-15-17%	≥4	≥10000	≥60	≥49	≥58	≥48
Cr-11-14%	≥3	≥10000	≥58	≥49	≥56	≥48
Cr-5-10%	≥3	≥8000	-	≥48	-	≥48
Cr-1.5-3.%	≥2	≥8000	-	≥48	-	≥45

Size and Weight

Norminal Diameter	Diametrical Tolerance(mm)	Approx Weight of Single Ball(kg)	Average Number of One MT
20mm/0.75''	+1,-0.5	0.033	30303
25mm/1''	+1,-0.5	0.064	15625
30mm/1.25''	+2,-1	0.11	9090
40mm/1.5''	+2,-1	0.261	3831
50mm/2''	+2,-1	0.51	1961
60mm/2.5''	+2,-1	0.883	1132
70mm/2.75''	+3,-1.5	1.402	713
80mm/3.25''	+3,-1.5	2.092	478
90mm/3.5	+3,-1.5	2.98	335
100mm/4''	+3,-1.5	4.087	244
110mm/4.5''	+3,-1.5	5.44	183
120mm/4.75''	+3,-1.5