DIN 17350 S6-5-2S Introduce
DIN 17350 S6-5-2S steel is an outstanding material for numerous industrial applications. Its excellent mechanical properties make it a suitable choice for tools, dies, and precision parts. It has a high Rockwell C hardness of 59-60 HRC, and a high tensile strength of 1,150-1,300 MPa. It also has a yield strength of 1,170 MPa and an impressive fatigue limit. In addition, it is highly elastic and ductile, and has excellent impact resistance. All these properties make DIN 17350 S6-5-2S steel the material of choice for many industrial applications.
Smelting temperature:1886°C - 1219°C
Application:Tool Steels; Technical Conditions of Delivery
DIN 17350 S6-5-2S Material Chemical Composition
The chemical composition of the DIN 17350 S6-5-2S steel are as follows:
| Element | Min | Max |
|---|---|---|
| Tungsten (W) | 6.0000 | 6.7000 |
| Vanadium (V) | 1.7000 | 2.0000 |
| Silicon (Si) | - | 0.4500 |
| Sulfur (S) | 0.0600 | 0.1500 |
| PhOsphorus (P) | - | 0.0300 |
| Molybdenum (Mo) | 4.7000 | 5.2000 |
| Manganese (Mn) | - | 0.4000 |
| Chromium (Cr) | 3.8000 | 4.5000 |
| Carbon (C) | 0.8600 | 0.9400 |
DIN 17350 S6-5-2S Material Mechanical Properties
The mechanical properties of the DIN 17350 S6-5-2S steel are as follows:
| YieldRp0.2 | ≤ 369 (MPa) |
| TeileRm | ≤ 138 (MPa) |
| ImpactKV/Ku | 33(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 141 |
DIN 17350 S6-5-2S Material Thermal Properties
The thermal performance parameters of the DIN 17350 S6-5-2S steel are as follows:
| Temperature (°C) | 42 | 933 | 216 |
| Modulus of elasticity (GPa) | - | 225 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 34 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 313 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.11 | - | - |
| Deity (kg/dm³) | - | - | 421 |
| Poisson’s coefficient, ν | - | - | 143 |