Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd 18 Years focus on development and production of grinding media Casting quality with strength, Forging glory with integrity
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Automatic Hot Rolling Steel Balls , HRC 60 - 68 Grinding Media Balls
PRODUCTS NAME: HOT ROLLING STEEL BALLS
MATERIAL: B2 STEEL
SIZE: DIA 25-150MM
CHEMICAL ELEMENTS:
| SPECS | Chemical composition |
| 60Mn Steel | C:0.72-0.92,Mn:0.7-1.0 S:0.035Max,P:0.035Max Si:0.2-0.4,Cr:0.4-0.6 |
HARDNESS:
| SIZE | SURFACE | CORE |
| DIA25-90MM | HRC 55-60 | HRC 40-50 |
| DIA100-150MM | HRC 50-60 | HRC 35-45 |
Weight of Jinan Zhongwei hot rolling steel Ball
| Norminal Diameter | Diametrical Tolerance(mm) | Approx Weight of Single Ball(kg) | Average Number Per Ton |
| 25mm/1'' | +1.5,-0.5 | 0.064 | 15625 |
| 30mm/1.25'' | +1.5,-0.5 | 0.11 | 9090 |
| 40mm/1.5'' | +2.0,-1.0 | 0.26 | 3846 |
| 50mm/2'' | +2.0,-1.0 | 0.51 | 1961 |
| 60mm/2.5'' | +3.0,-2.0 | 0.89 | 1124 |
| 70mm/2.75'' | +3.0,-2.0 | 1.4 | 714 |
| 80mm/3.25'' | +3.0,-2.0 | 2.1 | 476 |
| 90mm/3.5'' | +3.0,-2.0 | 3 | 333 |
| 100mm/4'' | +4.0,-3.0 | 4.1 | 244 |
| 110mm/4.5'' | +4.0,-3.0 | 5.47 | 283 |
| 120mm/4.75 | +4.0,-3.0 | 7.1 | 141 |
| 130mm/5'' | +4.0,-3.0 | 9.02 | 111 |
Feature of Jinan zhongwei hot rolling steel balls as follows :
1) . High Hardness : Surface hardness: HRC60-68 HRC, volume hardness HRC60-65.
2) . High Impact Toughness : The impact toughness of our grinding balls is more than 12 J / cm2.
3) . Low Broken Rate : the actual broken rate is not more than 1%.
4) . Good wear-resistant and lower wear rate.
Why choose Jinan Zhongwei :
1 . Quality Management System certified ISO 9001:2008.
2 . Environmental management system certified ISO 14001.
3 . Occupational health and safety management systems certified OHSAS 18001.
4 . We use the highest quality bar stock available, made with "clean steel" technology.
5 . Rigidly managed forging process ensuring spherical ball shape.
6 . High end heat treatment technology, based on Jinan Zhongwei’s years of metallurgical experience guaranteeing long wear life.
We jinan zhongwei will continue to promote the benefits and applications of our grinding media to an
ever-widening industrial marketplace.
We are ready to contribute our share in advancing mutual benefit and win-win cooperation.