A) Product Name : Cast grinding ball
B) Size : 10-130mm
C) Applied fields :metal mines ,cement plant ,power station ,chemical industry
D ) Chemical composition
Chrome content | Chemical composition(%) |
C | Si | Mn | Cr | Mo | Ni | P | S |
Cr10 | 1.8--3.3 | 1.2max | 2.5max | 10--15 | low1.5 | a little | 0.08max | 0.08max |
Cr1--3 | 1.8-3.5 | 1.4max | 1.2max | 1--3 | low1.0 | a little | 0.08max | 0.08max |
Cr 3--7 | 2.0-3.2 | 1.2max | 0.5-1.5 | 3--9 | low1.0 | a little | 0.08max | 0.08max |
Cr high 10 | Varies according to the requirements |
Mechanical Properties
| Mechanical Properties |
| Surface | AK(J/cm²) | Microstructure | Wear rate | Breakage rate | Times of falling |
Cr10 min | 58-68HRC | 2.5max | M+C | 25gr/t.m | low1% | 15000min |
Cr low 10 | 45-57HRC | 1.6max | P+C | 80gr/t.m | low1% | 10000min |
C-Carbide P-Pearite M-Martensite |