DIN 17350 C70W2 Introduce
DIN 17350 is a German standard steel designation used in industrial machining. It is primarily used in the production of cutting tools, dies, and other metal parts with extreme precision and dimensional accuracy. DIN 17350 C70W2 steel offers a wide range of useful machining properties and is extremely suitable for tooling, metalworking, and other metal-processing applications.
Smelting temperature:1793°C - 1467°C
Application:Tool Steels; Technical Conditions of Delivery
DIN 17350 C70W2 Material Chemical Composition
The chemical composition of the DIN 17350 C70W2 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1000 | 0.3000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Manganese (Mn) | 0.1000 | 0.3500 |
| Carbon (C) | 0.6500 | 0.7400 |
DIN 17350 C70W2 Material Mechanical Properties
The mechanical properties of the DIN 17350 C70W2 steel are as follows:
| YieldRp0.2 | ≤ 954 (MPa) |
| TeileRm | ≤ 828 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 34% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 123 |
DIN 17350 C70W2 Material Thermal Properties
The thermal performance parameters of the DIN 17350 C70W2 steel are as follows:
| Temperature (°C) | 23 | 969 | 471 |
| Modulus of elasticity (GPa) | - | 592 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 41.2 |
| Specific thermal capacity (J/kg·°C) | - | 234 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.12 | - | - |
| Deity (kg/dm³) | - | - | 324 |
| Poisson’s coefficient, ν | - | - | 144 |