| 名称 Products | 铸钢砂 Cast Steel Grit | |
| 化学成分 Chemical Composition | 碳（C）0.80~1.20% | |
| 锰（ Mn）0.35~1.20% | ||
| 硅（Si）≥0.40 | ||
| 硫（S）≤0.05% | ||
| 磷（ P）≤0.05% | ||
| 平均硬度 Hardness | GP钢砂：42~52HRC GL钢砂：53~60HRC GH钢砂：60~64HRC | |
| 硬度偏差 Hardness Deviation | 最大偏差范围为±3.0HRC Max Deviation ±3.0HRC | |
| 欧文寿命 Durability | 2000~2800次 Times | |
| 金相组织 Microstructure | 均匀的回火马氏体或回火屈氏体 Tempered Martensite or Sorbite | |
| 密度 Density | 7.6g/cm³ | |
| 堆积密度 Bulk Denslty | 4.2g/cm³ | |
| 目数 mesh | mm | 铸钢砂规格 mm Specifications of Cast Steel Grit mm | |||||||||||
| SG-2.5 | SG-2.0 | SG-1.7 | SG-1.4 | SG-1.2 | SG-1.0 | SG-0.7 | SG-0.4 | SG-0.3 | SG-0.2 | ||||
| 7 | 2.80 | all pass | |||||||||||
| 8 | 2.36 | all pass | |||||||||||
| 10 | 2.00 | 80%min | all pass | all pass | |||||||||
| 12 | 1.70 | 90%min | 80%min | all pass | |||||||||
| 14 | 1.40 | 90%min | 80%min | all pass | |||||||||
| 16 | 1.18 | 90%min | 75%min | all pass | |||||||||
| 18 | 1.00 | 85%min | 75%min | all pass | |||||||||
| 20 | 0.850 | all pass | |||||||||||
| 25 | 0.710 | 85%min | 70%min | ||||||||||
| 30 | 0.600 | all pass | |||||||||||
| 35 | 0.500 | ||||||||||||
| 40 | 0.425 | 80%min | 70%min | ||||||||||
| 45 | 0.355 | ||||||||||||
| 50 | 0.300 | 80%min | 65%min | ||||||||||
| 80 | 0.180 | 75%min | 65%min | ||||||||||
| 120 | 0.125 | 75%min | 60%min | ||||||||||
| 200 | 0.075 | 70%min | |||||||||||
| 325 | 0.045 | ||||||||||||
| SAE J444 | G-10 | G-12 | G-14 | G-16 | G-18 | G-25 | G-40 | G-50 | G-80 | G-120 | |||
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