ASTM A 709 Grade 50W Weathering resistant steel plate Size

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ASTM A709-50W Weathering resistant steel plate is a standard specification for structural steel in bridges. ASTM A709-50W covers high strength, low allow steel structural shapes, plates and bars. The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition. ASTM A709-50W shall have an atmospheric corrosion index of 6.00 or higher.
ASTM A 709 Grade 50W Weathering resistant steel plate Size:
Thickness: 5-300mm
With:   1000-4000mm
Length: 2000-18000mm
Mechanical properties:
Tensile:65 min ksi
Yield:50ksi min
Elongation:16% min in 8” 19% min in 2”
Chemical composition(%):
C≤0.23 Mn≤1.35 P≤0.04 S≤0.05 Si≤0.40 V:0.01-0.15 Nb:0.005-0.05
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