Germany DIN S7-4-2-5 High-speed tool steel and S7-4-2-5 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Tool Steel And Hard Alloy | S7-4-2-5 | DIN | Germany | High-speed tool steel | 
| X20CrMo13 | |||||
| 1.4120 | |||||
| S12-1-4-5 | |||||
| 1.3202 | |||||
| S10-4-3-10 | |||||
| 1.3207 | |||||
| S6-5-2-5 | |||||
| 0.3243 | |||||
| S6-5-2-5S | |||||
| 1.3245 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 585 (≥) | 836 (≥) | 31 | 32 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 214 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.44 | - | |||
| 262 | 386 | - | 24.3 | 241 | - | ||
| 246 | - | 33 | 34.2 | 142 | 144 | 
Heat treated : 1866°C - 1436°C
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