| Cast Chromium-Copper Grinding Ball | ||||||||
| element | C | Si | Mn | P | S | Cr | Cu | other |
| % | 2.6-3.4 | 0.5-1.2 | 0.4-0.8 | <0.1 | <0.12 | 1.5-1.8 | 0.7-1.8 | elements |
| Rockwell | Shock | Tensile | Ball wear ratio: g/ton ( cement or ore) | Breaking | trace | |||
| Hardness: | Toughness: | Strength: | Cement | Coal | Metallic ore | ratio % | ||
| HRC45-52 | 2-4 | 300-500 | 110-150 | 69-100 | 700-1400 | <2.0 | ||
| J/cm2 | MPa | |||||||
| Specification ( Diameter, mm ): 30 40 50 60 70 80 90 100 110 120 125 130 | ||||||||
| Cast High- Chromium Ferroalloy Roll-Ring and Cast High-Chromium Ferroalloy Lining | ||||||||
| elment | C | Si | Mn | P | S | Cr | Cu | Mo |
| % | 2.5-3.3 | 0.9-1.2 | 0.8-1.2 | <0.04 | <0.04 | 17- 22 | 0.5-1.0 | 0.6-2.0 |
| Rockwell Hardness: | Shock Toughness : | Tensile Strength: | other | |||||
| > HRC60 | 4 - 6 J/cm2 | > 500 MPa | elments | |||||
| trace | ||||||||
| Specfication: 08 12 13 17 19 | ||||||||