high/ low chrome casting grinding ball,iron ball

casting ball C 2.0~2.8;Si 1.0 Max;Mn 0.5~1.5;Cr 18~22;Mo 0~1.5;P 0.10 Max;S 0.08 Max;Ni 0~1.5 HRC(A) 56 Min;HRC (B) 48Min

     Anhui Ningguo Jinhong wear-resistant Materials Co. Ltd is a professional enterprise specializing in manufacturing the wear-resistant. With an occupying area of 20.000 square meters which located in the largest wear-resistant material production base of Asia--- NingGuo Zhongxi industrial park which adjacent to Huangshan,Shanghai,Hangzhou,Nanjing,Hefei city,and the Nanjing Lushang and Hangzhou xiaoshan international airport also provide the convenient air transportation conditons .     Our company possesses more than 400 staffs ,strong technical focus .advanced production equipment and testing facilities with the over 20.000 tons annual output.Jinhong brand products mainly including High Chormuim Casting Grinding Balls,Low Chromium Casting Balls and steel casting.Weve got the approval of National Quality Monitoring Center (NACIS) and  ISO9001:2000 Quality Control  System accreditation.

The chemical composition tests are all according to the requirements of  GB223.1,GB 223.2,GB 223.3,GB 223.4,GB/T 223.5,GB/T 223.12,GB/T 223.18,GB/T 223.23,GB/T 223.26,GB/T 223.46,GB/T 223.49.

Rockwell hardness testing in accordance with GB/T 230.

Times of falling balls are more than 8000 or equal.

The rate of the broken ball is below or equal 1% in principle.

Chemical Composition
Name	Designation	Chemical Composition(%)
		C	Si	Mn	Cr	Mo	P	S
Higher Chrome Cast Grinding Balls	ZQCr26	2.0-2.8	≤1.0	≤1.5	22-28	≤1.0	≤0.10	≤0.08
	ZQCr20	2.0-2.8	≤1.0	≤1.5	18-22	≤1.5	≤0.10	≤0.08
High Chrome Cast Grinding Balls	ZQCr17	2.0-3.0	≤1.0	≤1.5	15-18	≤1.5	≤0.10	≤0.08
	ZQC12	1.7-3.0	≤1.0	≤1.5	10--14	≤1.5	≤0.10	≤0.08
Properties and Microstructure
Name	Designation	Hardness(HRC)		AK(j/cm²)	Microstructure	Times of Falling Balls
		A	B
Higher Chrome Cast Grinding Balls	ZQCr26	≥56	≥45	≥4.0	M+C	≥8000
	ZQCr20	≥56	≥45	≥4.0		≥8000
	ZQCr17	≥56	≥45	≥4.0		≥8000
High Chrome Cast Grinding Balls	ZQC12	≥56	≥45	≥4.0		≥8000
Specification
8	10	12	15	17	20	25	30
40	50	60	70	80	90	100	110

 iron ball,high/ low chrome casting grinding ball

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

high/ low chrome casting grinding ball,iron ball