China A709 GR50W steel supplier,best price A709 GR50W steel

BBN steel hot sell China A709 GR50W steel supplier,best price A709 GR50W steel,we can offer all kinds of steel stock.ASTM A709-50W 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.
A709 GR50W steel Chemical composition%:

Note:—Type A, B, C the same with A588/ A588M Grade A, B, C.
Element	Chemical , %A
Element	Type A	Type B	Type C
CB	0.19 max	0.20 max	0.15 max
MnB	0.80–1.25	0.75–1.35	0.80–1.35
P	0.04 max	0.04 max	0.04 max
S	0.05 max	0.05 max	0.05 max
Si	0.30–0.65	0.15–0.50	0.15–0.40
Ni	0.40 max	0.50 max	0.25–0.50
Cr	0.40–0.65	0.40–0.70	0.30–0.50
Cu	0.25–0.40	0.20–0.40	0.20–0.50
V	0.02–0.10	0.01–0.10	0.01–0.10

A709 GR50W steel Mechanical properties:

Grade	Thick mm	Yield [MPa] Min	Tensile [MPa]	Elongtation Min %				reduction Min %	HB
				Steel Plate		Structural steel
				200mm	50mm	200mm	50mm
A709 Grade 50W	≤100	345Min	485min	18	21	18	21

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