Tianjin Bohai Metal Corporation

ASTM A709 GR.50W steel plate

ASTM A709-50W is a standard specification for structural steel primarily in the fabrication of steel 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.

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Commodity name: ASTM A709 GR.50W steel plate

Product information

High strength low alloy steel plate ASTM A709GR.50W also named as weathering steel plate A709 Grade 50W in advantage of its property in atmosphere corrosion resistance. According to the different main chemical elements contains, A709 Grade 50W was divided as A709Gr50w type A, A709Gr50w type B, A709Gr50w type C.These three steel grades are equivalent to specification ASTM A 588/A 588M A588 Grade A,A588 Grade B and A588 Grade C.Low alloy steel plate A709 Grade 50W also owned the same minimum limited yield strength at 345 Mpa as A709 Grade 50 steel plate.
A709 Gr.50W weathering steel plates, which is famous for its property in atmosphere corrosion resistance. A709 Grade 50W steel plates are widely used in construction machinery, mining machinery, truck, bridges, pressure vesselsstructures building etc.,

Technical Requirements & Additional Services:

High tension test
Low temperature impacting test
Simulated post-welded heat treatment (PWHT)
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
When cooper steel is specified for A709 Gr36, the content Cu≥0.20%
Shot blasting and Painting,Cutting and welding as per end user’s demands

Chemical composition & Mechanical property

For more property in A709 Gr.50S steel plate, please check them in following;
A709 Grade 50S Chemical composition Heat analysis

Element	Chemical %
C, max	0.23
Mn	0.50-1.60A
Si ,max	0.40
V ,max	0.15B
Nb ,max	0.05B
P ,max	0.035
S ,max	0.045
Cu ,max	0.60
Ni xma	0.45
Cr ,max	0.35
Mo ,max	0.15

A 709 Gr. 50S mechanical property

A709 Grade	Thick mm	Yield [MPa]	Tensile [MPa]	Elongtation Min %				reduction Min %	HB
				Steel Plate		Structural steel
				8in[200mm]	2in[50mm]	8in[200mm]	2in[50mm]
36[250]	≤100	[250]min	400-550	20	23	20	21	…	…
36[250]		[250]min	400min	…	…	20	19	…	…
50[345]	≤100	345min	450min	18	21	18	21F	…	…
50S[345S]	G	345-450HI	450minH	…	…	18	21	…	…
50W[345W] HPS50W[HPS345W]	≤100	345min	485min	18	21	18	21J	…	…
HPS70W[HPS485W]	≤100	485min	585-760	…	19K	…	…	…	…
100 [690], 100W [690W],HPS100W [HPS690W]	≤65	690minB	760-895	…	18K	…	…	L	235-293M
100 [690], 100W [690W],	65-100	620minB	690-895	…	16K	…	…	L	…