Q355GNH Steel
Classification :
Keywords:
Q355GNH Steel
The specifications
The main mechanical properties are elasticity, plasticity, stiffness, aging sensitivity, strength, hardness, impact toughness, fatigue strength and fracture toughness.
Elasticity: Metal material deforms when it is subjected to external force. When the external force is removed, it can restore its original shape.
The specifications:
Thickness: 3mm--150mm
Width: 30mm--4000mm
Length: 1000mm--12000mm
Standard: ASTM EN10025 JIS GB
GB Q355GNH GB/T 4171 Physical
| 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) |
|---|---|---|---|---|---|---|
| 378 (≥) | 659 (≥) | 12 | 34 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
Physical performance parameters of GB Q355GNH GB/T 4171 are mainly indicated by density, poisson's ratio, thermal conductivity, specific thermal capacity, coefficient of thermal expansion, modulus of elasticity, electrical resistance value, etc.
| 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 |
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.21 | - | |||
| 269 | 886 | - | 41.3 | 432 | - | ||
| 919 | - | 12 | 22.2 | 234 | 143 |
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