High-Quality Stone Cutting Steel Grit from China Suppliers - Durable Factory Products for Granite Cutting
Product Details
Its advantages:
- Higher and good hardness
- Longer fatigue life
- Less cost
- Perfect match to stone cutting machines
| Item | Bearing Steel Grit | ||
| Appearance | Angular | ||
| Hardness | >60HRC(>710HV) | 53-60HRC(510-710HV) | 40-50HRC(377-540HV) |
| Microstructure | Fine even tempered martensite | Fine even tempered martensite | Fine even tempered martensite |
| Carbide grade <2 | |||
| Density | ≥7.50g/cm³ | ||
| Chemical Composition | |||
| C | 0.80-1.20% | ||
| Si | 0.15-1.20% | ||
| Mn | 0.20-1.20% | ||
| S | ≤0.05% | ||
| P | ≤0.05% | ||
| Cr | 0.60-1.60% | ||
| Type | GH12 | GH14 | GH16 | GH18 | GH25 | GH40 | GH50 | GH80 |
| Diameter Range | 2.0 | 1.8 | 1.5 | 1.2 | 1.0 | 0.8 | 0.6 | 0.4 |
FAQ
No, they are quite different.
First its shape is different, shape of stone cutting steel grit is all in angular shape, but cast steel grit is mostly in spherical; Second made with different raw metal materials; Third, the fatigue life of stone cutting steel grits is quite higher than cast steel grits’.
All sizes from G12-G80, screen sizes are same as SAE.
For stone cutting purpose, it is suggested to use the steel grits with hardness of 50-60 HRC, GL type.
The density of the bearing steel grit is ≥7.50g/cm³, and its microstructure consists of fine even tempered martensite with a carbide grade of <2.
The chemical composition contains Carbon (C: 0.80-1.20%), Silicon (Si: 0.15-1.20%), Manganese (Mn: 0.20-1.20%), Sulfur (S: ≤0.05%), Phosphorus (P: ≤0.05%), and Chromium (Cr: 0.60-1.60%).