China GBT Y12Pb China structural steel and alloy steel and Y12Pb Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | Y12Pb | GBT | China | China structural steel and alloy steel |
| 20MnTiBH |
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| 20CrMnMoH |
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| 20CrMnTiH |
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| 20CrNi3H |
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| 12Cr2Ni4H |
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| 20CrNiMoH |
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| 55Ti |
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| 60Ti |
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| 70Ti |
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| Y12 |
| 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) |
|---|---|---|---|---|---|---|
| 177 (≥) | 643 (≥) | 23 | 23 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 |
| 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 |
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.43 | - | |||
| 298 | 614 | - | 12.3 | 323 | - | ||
| 412 | - | 24 | 21.2 | 124 | 323 |
Heat treated : 1994°C - 1727°C
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