China GBT 42SiMn China structural steel and alloy steel and 42SiMn Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | 42SiMn | GBT | China | China structural steel and alloy steel |
| 16MnREL |
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| 20Mn2 |
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| 30Mn2 |
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| 35Mn2 |
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| 40Mn2 |
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| 45Mn2 |
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| 50Mn2 |
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| 20MnV |
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| 27SiMn |
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| 35SiMn |
| 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) |
|---|---|---|---|---|---|---|
| 797 (≥) | 261 (≥) | 24 | 23 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 |
| 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 |
|---|---|---|---|---|---|---|---|
| 21 | - | - | 0.12 | - | |||
| 168 | 372 | - | 24.3 | 322 | - | ||
| 337 | - | 14 | 14.2 | 444 | 344 |
Heat treated : 1166°C - 1842°C
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