The grades for tungsten carbide punches:
| Grade | WC(%) | Co(%) | Hardness(HRA) | TRS(N/mm²) |
| YG6 | 94 | 6 | ≥90.5 | 1860 |
| YG8 | 92 | 8 | ≥89.5 | 2060 |
| YG11 | 89 | 11 | ≥87.5 | 2100 |
| YG15 | 85 | 15 | ≥87.5 | 2500 |
| YG20 | 80 | 20 | ≥85 | 2600 |
Tungsten carbide punches details:


We are able to make the punches as per your drawings.
Utilizing five-axis simultaneous grinding and mirror polishing processes, the core precision indicators reach the high-end level of the industry:
Dimensional tolerance: Ultra-precision level ±0.001mm (higher precision can be customized as needed);
Roundness/concentricity: ≤0.003mm, radial runout ≤0.002mm;
Surface roughness: Ra≤0.05μm (mirror finish), reducing material adhesion and friction loss during the stamping process and ensuring the surface finish of the workpiece.
Please send us inquiries for quotations and free samples for testing:







