In the realm of durable construction materials, GB/T 4172 Q295NH steel plate emerges as a robust solution for welded structures that demand reliable atmospheric corrosion resistance. Conforming to the Chinese national standard GB/T 4172-2000 for atmospheric corrosion-resisting steel specifically tailored for welded applications, Q295NH excels in forming a protective patina that shields against environmental degradation.
GB/T 4172 focuses on low-alloy steels optimized for welding, ensuring minimal cracking risks while providing superior weathering properties. These steels are ideal for outdoor welded assemblies exposed to moisture, pollutants, and temperature fluctuations. The "Q295NH" designation reflects its minimum yield strength of 295 MPa ("Q295") and "NH" for enhanced atmospheric corrosion resistance.
This grade strikes an optimal balance between strength and cost, making it suitable for medium-load applications that require longevity without excessive material thickness.
Thickness Range: 3mm to 150mm
Width: Up to 3,500mm
Length: Up to 12,000mm
Surface Finish: Hot-rolled, available in mill edge or cut edge
Delivery Condition: As-rolled or normalized
Q295NH steel Mechnical property:
|
Q295NH |
<= 16 |
> 16 <= 40 |
> 40 <= 60 |
>60 |
|
295 |
285 |
275 |
255 |
|
|
430-560 |
||||
Q295NH steel Chemical composition:
Main chemical elements composition of Q295NH |
|||||||
|
C |
P |
S |
|||||
|
0.15 |
0.10-0.50 |
0.30-1.00 |
0.030 |
0.030 |
0.25-0.55 |
0.65 |
0.40-0.80 |
