China GBT GCr15SiMo China structural steel and alloy steel and GCr15SiMo Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | GCr15SiMo | GBT | China | China structural steel and alloy steel | 
| 60Si2CrVA | |||||
| 55CrMnA | |||||
| 60CrMnA | |||||
| 60CrMnMoA | |||||
| 50CrVA | |||||
| 60CrMnBA | |||||
| 30W4Cr2VA | |||||
| GCr4 | |||||
| GCr15 | |||||
| GCr15SiMn | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | Cu(%) | 
|---|---|---|---|---|---|---|---|---|
| 0.95-1.05 | 0.65-0.85 | 0.20-0.40 | 0.027 | 0.02 | 1.40-1.70 | Max 0.30 | 0.30-0.40 | Max 0.25 | 
| 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) | 
|---|---|---|---|---|---|---|
| 859 (≥) | 496 (≥) | 14 | 23 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 | 
| 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 | - | - | 0.31 | - | |||
| 381 | 292 | - | 32.3 | 331 | - | ||
| 471 | - | 13 | 13.2 | 334 | 112 | 
Heat treated : 1848°C - 1963°C
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