Bridge anti-corrosion steel materials a709gr50w and a588 equivalent ?

Steel materials A709 gr 50w included three typies as a709gr50w type a steel,a709gr50w type b steel and a709gr50w type c.The three typies are completely equivalent to weather anti corrosion steel materials a588gra,a588grb and a588grc.A709gr50w type A chemical composition and mechanical properties are the same as a588gra according to the below comparasion table.

Thickness from 3mm to 150mm of weathering steel plates a709 grade 50w and A588 are in stock ready for shipment.A588GRA H beams,A588GrB H beams,A588GrB angle bars,A588GrB flat bars,A588GrB square hollow sections,A588GrA rectangular hollow sections are all available stock.
 

Bridge steel grades A709GR50W vs A588		Chemical composition: Heat Analysis  Max%
Standard	Grade	C	Mn	P	S	Si	Cr	Ni	Cu	V
ASTM A709/A709M	A709Gr50W Type A	0.19	0.80-1.25	0.04	0.05	0.30-0.65	0.40-0.65	0.40	0.25-0.40	0.02-0.10
ASTM A588/A588M	A588GrA	0.19	0.80-1.25	0.04	0.05	0.30-0.65	0.40-0.65	0.40	0.25-0.40	0.02-0.10
Mechanical Properties:		Thickness		Yield strength			Tensile strength
				Mpa  Min.			Mpa
ASTM A709/A709M	A709Gr50W	T≤100		345			485 min.
ASTM A588/A588M	A588GrA	T≤100		345			485 min.