Germany DIN 1.4938 The high-temperature and high-strength steel and 1.4938 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Special Steel | 1.4938 | DIN | Germany | The high-temperature and high-strength steel | 
| 1.5028 | |||||
| 37MnSi5 | |||||
| 37MnSi5 | |||||
| X22CrMoV12-1 | |||||
| 1.4923 | |||||
| 1.4934 | |||||
| 1.4935 | |||||
| X20CrMoWV12-1 | |||||
| 1.4939 | |||||
| X12CrNiMoV12-3/X11CrNiMoN12 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | V(%) | N(%) | 
|---|---|---|---|---|---|---|---|---|---|
| 0.08-0.15 | Max 0.50 | 0.40-0.90 | Max 0.025 | Max 0.015 | 11.0-12.5 | 2.00-3.00 | 1.50-2.00 | 0.25-0.40 | 0.25-0.40 | 
| 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) | 
|---|---|---|---|---|---|---|
| 997 (≥) | 891 (≥) | 12 | 34 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.11 | - | |||
| 472 | 667 | - | 13.3 | 332 | - | ||
| 483 | - | 32 | 43.2 | 212 | 223 | 
Heat treated : 1566°C - 1379°C
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