Tricone tetrahedral grinding media
| Chemical Composition | |||||||
| Name | Designation | Chemical Composition(%) | |||||
| C | Si | Mn | Cr | P | S | ||
| Cast Grinding Balls | ZQCr26 | 2.0~3.3 | ≤1.2 | 0.3~1.5 | >23~30 | ≤0.10 | ≤0.06 |
| ZQCr20 | 2.0~3.3 | ≤1.2 | 0.3~1.5 | >18~23 | ≤0.10 | ≤0.06 | |
| ZQCr15 | 2.0~3.3 | ≤1.2 | 0.5~1.5 | >14~18 | ≤0.10 | ≤0.06 | |
| ZQCr12 | 2.0~3.3 | ≤1.2 | 0.5~1.5 | >10~14 | ≤0.10 | ≤0.06 | |
| ZQCr8 | 2.1~3.3 | <2.2 | 0.3~1.5 | 7~10 | ≤0.10 | ≤0.06 | |
| ZQCr5 | 2.1~3.3 | <1.5 | 0.3~1.5 | 4~6 | ≤0.10 | ≤0.10 | |
| ZQCr2 | 2.1~3.3 | <1.5 | 0.3~1.5 | 1~3 | ≤0.10 | ≤0.10 | |
| Name | Designation | Surface Hardness(HRC) | Core Hardness (HRC) | Microstructure | Times of Falling Balls |
| ZQCr26 | >58 | >56 | M+C | ≥21000 | |
| ZQCr20 | >58 | >56 | M+C | ≥21000 | |
| ZQCr15 | >58 | >56 | M+C | ≥18000 | |
| ZQCr12 | >58 | >56 | M+C | ≥18000 | |
| ZQCr8 | >50 | >47 | P+C | ≥10000 | |
| ZQCr5 | >48 | >45 | P+C | ≥10000 | |
| ZQCr2 | >46 | >45 | P+C | ≥10000 | |
| M-Martensite P-Pearlite C-Carbide | |||||