Premium Stone Cutting Steel Grit from China Suppliers - High-Quality Factory Production for Granite Cutting
Product Details
Its advantages:
- ✓ Higher and good hardness
- ✓ Longer fatigue life
- ✓ Less cost
- ✓ Perfect match to stone cutting machines
So many of our customers all use this type cutting medias for their stone cutting machines, including cutting granite etc.
| 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 | 04 |
FAQ
Q1. Is the stone cutting steel grit same as normal steel grit?
No, they are quite different.
Q2. What the main difference between stone cutting grit and steel grit?
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’.
Q3. What types can be available?
All sizes from G12-G80, screen sizes are same as SAE.
Q4. What’s the hardness?
For stone cutting purpose, it is suggested to use the steel grits with hardness of 50-60 HRC, GL type.
Q5. What is the chemical composition of the bearing steel grit?
The chemical composition consists of C: 0.80-1.20%, Si: 0.15-1.20%, Mn: 0.20-1.20%, S: ≤0.05%, P: ≤0.05%, and Cr: 0.60-1.60%.
Q6. What is the density and microstructure requirement for this steel grit?
The density of the bearing steel grit is ≥7.50g/cm³, and it features a microstructure of fine even tempered martensite with a carbide grade of <2.