Standard: GB/T 4171-2008 (Equivalent to EN 10025-5 S500W)
Grade Designation:
Q500NH:
Q: Yield Strength ("Qu" in Chinese)
500: Minimum yield strength (500 MPa)
NH: "Nai Hou" (Weathering resistance)
Key Advantage: Combines high strength with self-protecting patina formation for unpainted outdoor structures.
Chemical Composition of GB/T 4171 Q500NH Weathering Steel Plate
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
|
0.12 |
0.65 |
2 |
0.025 |
0.03 |
0.25-0.55 |
0.30-1.25 |
0.12-0.65 |
GB/T 4171 Q500NH Weathering Steel Plate Mechanical Properties
|
Tensile Strength(MPa) |
Yield Strength(MPa) |
Elongation % |
|
600-760 |
500 |
18 |
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