Products Description
Q460NH steel plate,under China GB/T 4171 standard, Q460NH steel plate is a kind of weathering steel. Q460NH steel plate is widely used to: container, chimney, railway construction and other outdoor steel such as a large outdoor sculpture steel.
Q460NH steel plate Specification
Thickness:3mm-40mm,as customer's requirement
Width:1500mm-3000mm,as customer's requirement
Length:4000mm-13000mm,as customer's requirement
Q460NH steel plate Chemical composition(%)
|
C |
Si |
Mn |
P |
S |
Cu |
Ni |
Cr |
|
0.12 |
0.65 |
1.50 |
0.025 |
0.030 |
0.20-0.55 |
0.12-0.65 |
0.30-1.25 |
Q460NH steel plate Mechanical properties
|
Thickness (mm) |
||||
|
Q460NH |
≤ 16 |
> 16 ≤ 40 |
> 40 ≤ 60 |
>60 |
|
Yield strength (≥Mpa) |
460 |
450 |
440 |
440 |
|
Tensile strength (Mpa) |
570-730 |
|||
Applications of China GB/T 4171 Q460NH Weather Resistant Steel Plate
Q460NH Weather Resistant Steel Plate are extensive, suitable for outdoor structures that require high strength and long-term atmospheric corrosion resistance..
In the transportation sector, it is commonly used for vehicle underframes, railway wagon bodies, and bridge load-bearing components, with typical mechanical properties including a yield strength of approximately 460 MPa, tensile strength of 570–690 MPa, and elongation of 18–22%, maintaining excellent toughness and reliability even in low-temperature or humid environments.
In construction projects, Q460NH steel plates are applied to bridge main beams, tower supports, large building frameworks, and decorative cladding.
The surface naturally forms a dense oxide layer approximately 50–100 μm thick, which effectively slows further corrosion, providing a service life of 20–30 years in urban or industrial environments and over 25 years in coastal or high-humidity conditions.
Additionally, Q460NH steel plates are widely used in container manufacturing, shipbuilding, and large outdoor facilities. Thanks to their high strength, corrosion resistance, and low maintenance requirements, they are a reliable choice of weathering steel for engineering and construction applications.
Contact now to get Q460NH Quote
