Products

Cast & Forged[10]

Contact Person : Mr. Liu Dazhong
Company Name : Qingzhou Dazhong Grinding Steel Ball Co., Ltd.
Tel : 86-531-83389098
Fax : 86-531-83389098
Address : Shandong,Qingzhou City,Huanglou Village,Huanglou Town,Qingzhou City,Shandong Province,China.
Country/Region : China

Grinding Steel Ball

Product Detailed

Related Categories:Cast & Forged

Forged grinding steel ball Specifications: a)High hardness, b)Good even wear resistance, c)Low breakage, d)high impact value

As the raw material in producing steel balls is high quality alloy steel, we can assure the high hardness and good wear resistance of the products. Our company has obtained ISO9001 International Quality System Authentication. The quality of the products can meet the demand of clients in different countries and areas.

We would like to introduce our products as below for your reference.

Forged steel grinding balls have 6 types as follows:

1.Chemical composition:

Name	C	Mn	Si	Cr	S	P	V
50MN	0.48-0.56	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
60MN	0.57-0.65	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
65MN	0.60-0.70	0.90-1.20	0.17-0.37	0.25 max	0.035max	0.035max
75Mn	0.72-0.92	0.17-0.37	0.7-1.0	0.4-0.6	0.035max	0.035max
75MnCr	0.70-0.85	0.7-0.8	0.17-0.37	0.2-0.7	0.03 max	0.03 max
75 SiMn	0.70-0.90	0.7-1.2	0.4-0.8	0.25 max	0.03 max	0.03 max
Wear-resistant Alloy	0.5-0.65	0.4-1.0	1.4-1.8	0.9-1.2	0.03 max	0.03 max	0.1-0.2

2.Specification and Hardness of Grinding Ball

Name	Impact Test AK.J/cm2	Endurance Test Times (5m)	Dia 25mm-60mm		Dia 70mm-100mm
Name	Impact Test AK.J/cm2	Endurance Test Times (5m)	Surface	Core	Surface	Core
50MN	≥12	≥10000	≥56	≥35	≥56	≥28
60MN	≥13	≥10000	≥58	≥38	≥58	≥29
65MN	≥15	≥12000	≥60	≥42	≥60	≥30
75MnCr	≥17	≥12000	≥60	≥52	≥60	≥50
75 SiMn	≥16	≥12000	≥60	≥50	≥60	≥48
Wear-resistant Alloy	≥17	≥12000	≥60	≥54	≥60	≥52