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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 | 10-14 | ≤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 | |
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 | |
8 | 10 | 12 | 15 | 17 | 20 | 25 | 30 |
40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 |
high chrome alloyed casting grinding balls