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Place of Origin : Chongqing, China
Brand Name : Henghui, Henghui
Model Number : Customized
MOQ : 1
Shaping Mode : Forging Mould
Product Material : Steel, Steel and carbide
Carbide Material : VA80, ST7, ST6, KG5, KG6
Tolerance : +/-0.01
Case Material : H13(SKD61) HRC46-48
Surface Treatment : TiN / TiAlN
Co Content : 6.50% - 24%
Grain Size : 2~3 μm - 6~9 μm
Density : 13.22 - 14.90 g/cm²
Hardness : 82.5 - 90.5 HRA
TRS : 240 - 340 Kgf/mm²
Impact Strength : 0.28 - 0.90 Kgf/m-cm²
Chemical Composition : C, Si, Mn, P, S, Cr, Mo, V, W, Cu, Ni
Concentricity : 0.01mm
Standard Deviation : 0.005mm



Item | Co | Grain Size | Density | Hardness | TRS | Impact Strength | Application | |
Mediun-Grained | Co% | μm | g/cm² | HRA | Kgf/mm² | Kgf/m-cm² | ||
KG2 | 6.50% | 2~3 | 14.90 | 90.5 | 320 | 0.28 | Drawing die | |
KG3 | 9% | 2~3 | 14.61 | 89.3 | 340 | 0.52 | Extrusion die | |
KG5 | 12% | 2~3 | 14.31 | 88.3 | 340 | 0.58 | Extrusion die | |
KG6 | 14% | 2~3 | 14.12 | 87.3 | 320 | 0.65 | Extrusion die | |
Coarse-Grained | ST6 | 15% | 3~6 | 13.80 | 86.0 | 270 | 0.78 | Stainless steel |
ST7 | 20% | 2~6 | 13.40 | 85.3 | 270 | 0.80 | Stainless steel | |
EA65 | 18% | 2~6 | 13.73 | 85.0 | 300 | 0.80 | Carbon steel screw/cutting die | |
VA80 | 20% | 3~6 | 13.58 | 84.0 | 280 | 0.85 | Impact resistance | |
VA90 | 22% | 6~9 | 13.39 | 82.5 | 240 | 0.90 | Impact resistance | |
EA90 | 24% | 2~6 | 13.22 | 82.8 | 270 | 0.90 | Impact resistance |
SKD61(H13) | ||||||||||
Chemical Composition | C | Si | Mn | P | S | Cr | Mo | V | W | |
Content (%) | 0.39 | 1.15 | 0.44 | 0.021 | 0.007 | 5.12 | 1.3 | 0.94 | 0.06 | |
Cu | Ni | |||||||||
0.05 | 0.06 | |||||||||








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2025 Wholesale Tungsten Carbide Die for Making Screws Bolts with VA80 ST7 ST6 KG5 KG6 Materials and +/-0.01 Tolerance Images |