China CNS SPHT3 China Taiwan Structural steel and SPHT3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | SPHT3 | CNS | China | China Taiwan Structural steel | 
| SM490A | |||||
| SM490B | |||||
| SM490C | |||||
| SM490YA | |||||
| SM490YB | |||||
| SM520YB | |||||
| SM520YC | |||||
| SM570 | |||||
| SPHT1 | |||||
| SPHT2 | 
| 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) | 
|---|---|---|---|---|---|---|
| 876 (≥) | 683 (≥) | 44 | 13 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 243 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 42 | - | - | 0.44 | - | |||
| 125 | 338 | - | 13.3 | 321 | - | ||
| 153 | - | 31 | 41.2 | 232 | 242 | 
Heat treated : 1223°C - 1963°C
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