China CNS SNCM625 China Taiwan Structural steel and SNCM625 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | SNCM625 | CNS | China | China Taiwan Structural steel | 
| STKM19C | |||||
| STKM20A | |||||
| SNCM220 | |||||
| SNCM240 | |||||
| SNCM415 | |||||
| SNCM420 | |||||
| SNCM431 | |||||
| SNCM439 | |||||
| SNCM447 | |||||
| SNCM616 | 
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) | Cu(%) | 
|---|---|---|---|---|---|---|---|---|
| 0.20-0.30 | 0.15-0.35 | 0.35-0.60 | 0.030 | 0.030 | 1.00-1.50 | 3.00-3.50 | 0.15-0.30 | 0.30 | 
| 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) | 
|---|---|---|---|---|---|---|
| 842 (≥) | 957 (≥) | 41 | 44 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 23 | - | - | 0.14 | - | |||
| 329 | 392 | - | 43.3 | 213 | - | ||
| 297 | - | 22 | 42.2 | 343 | 223 | 
Heat treated : 1871°C - 1814°C
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