China GBT ML30CrMoA China structural steel and alloy steel and ML30CrMoA Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Structure Steel | ML30CrMoA | GBT | China | China structural steel and alloy steel |
ML20 |
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ML25 |
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ML30 |
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ML35 |
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ML40 |
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ML45 |
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ML20MnA |
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ML30CrMnSiA |
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ML16CrSiNi |
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ML20CrMoA |
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | Cu(%) |
---|---|---|---|---|---|---|---|---|
0.25-0.33 | 0.17-0.37 | 0.40-0.70 | 0.03 | 0.03 | 0.80-1.10 | Max 0.40 | 0.15-0.25 | 0.2 |
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) |
---|---|---|---|---|---|---|
994 (≥) | 479 (≥) | 31 | 44 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 |
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 |
---|---|---|---|---|---|---|---|
43 | - | - | 0.43 | - | |||
545 | 413 | - | 14.3 | 342 | - | ||
142 | - | 12 | 42.2 | 121 | 422 |
Heat treated : 1547°C - 1492°C
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