Q355NH steel plate under China GB/T 4171 standard, it is a kind of weathering steel. Q355NH weathering steel plate is the high tensile strength weathering steel plate, it has 490-630 Mpa tensile strength.
Q355NH steel plate has good weldability and low temperature impact toughness, suitable for architecture, artifacts such as weather resistance of weldments.
Q355NH Weathering Steel Plate Specification(mm) :
Thickness : 1.2 - 150mm; Width: 1220-4200mm; length : 5000-18000mm
Mechnical property for Q355NH Corten Steel:
| Thickness (mm) |
| Q355NH |
≤ 16 |
> 16 ≤ 40 |
> 40 ≤ 60 |
>60 |
| Yield strength (≥Mpa) |
355 |
345 |
335 |
325 |
| Tensile strength (Mpa) |
490-630 |
Chemical composition for Q355NH Corten Steel (Heat Analysis Max%)
| Main chemical elements composition of Q355NH |
| C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
| 0.16 |
0.50 |
0.50-1.50 |
0.030 |
0.030 |
0.25-0.55 |
0.65 |
0.40-0.80 |
GB/T 4171 Q355NH weathering steel has a protective layer of rust resistance to atmospheric corrosion, it can be used in the manufacture of vehicles, bridges, towers, containers and other steel low-alloy structural steel.
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