A709 Grade HPS 50W

ASTM A 709/A 709M A709 Grade HPS 50W,A709GrHPS 50W steel plate is a kind of weathering steel material with Cr,Ni,Mo alloy when rolling.The low alloy steel plate A709GRHPS 50W shall have an atmospheric corrosion resistance index of 6.0 or higher calculated from the heat analysis in according to steel guide G 101-predictive method based on the date of larabee and Coburn.When properly exposed to the atmosphere,these weathering steel sheet A709 Grade HPS 50W can be used bare and unpainted.

Technical Requirements & Additional Services for A709 Grade HPS 50W steel plate:
♦ 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 A709Gr36,the content Cu≥0.20%
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 

►Mechnical property for A709 Grade HPS 50W steel plate:

Yield strength (≥Mpa)	Tensile strength (≥Mpa)	Elongation in ≥,%
345	485	200mm	50mm
		18	21

►Chemical composition for A709 Grade HPS 50W steel plate (Heat Analysis Max%)

Main chemical elements composition of A709 Grade HPS 50W steel plate
C	Si	Mn	P	S	Ni	Cr	Cu	V	Mo	Al	N
0.11	0.30-0.50	1.10-1.35	0.02	0.006	0.25-0.40	0.45-0.70	0.25-0.40	0.04-0.08	0.02-0.08	0.01-0.04	0.015