China CNS SM490YA China Taiwan Structural steel and SM490YA Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Structure Steel | SM490YA | CNS | China | China Taiwan Structural steel |
| SS34 |
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| SS400 |
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| SS490 |
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| SS540 |
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| SM400A |
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| SM400B |
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| SM400C |
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| SM490A |
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| SM490B |
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| SM490C |
| 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) |
|---|---|---|---|---|---|---|
| 167 (≥) | 778 (≥) | 41 | 13 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 |
| 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 |
|---|---|---|---|---|---|---|---|
| 44 | - | - | 0.14 | - | |||
| 643 | 941 | - | 12.3 | 221 | - | ||
| 685 | - | 33 | 23.2 | 321 | 441 |
Heat treated : 1372°C - 1162°C
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