ASTM A709 Grade HPS 70W Steel — Specifications & Listings

ASTM

High performance weathering steel for bridge construction with 485 MPa (70 ksi) yield strength. Superior toughness, weldability and corrosion resistance compared to conventional weathering steels.

Category: Mild Steel

Grade Details

Grade	ASTM A709 Grade HPS 70W
Standard	ASTM
Description	High performance weathering steel for bridge construction with 485 MPa (70 ksi) yield strength. Superior toughness, weldability and corrosion resistance compared to conventional weathering steels.
Applications

Chemical Composition (%)

C	Mn	Si	P	S	Cu	Cr	Ni	Mo
<=0.11	1.10-1.35	0.30-0.50	<=0.020	<=0.006	0.25-0.40	0.45-0.70	0.70-1.00	0.02-0.08

Mechanical Properties

tensile_strength	585 MPa min
yield_strength	485 MPa min
elongation	19% min
hardness	170-210 HB

Active ASTM A709 Grade HPS 70W Listings on M-EX

No active ASTM A709 Grade HPS 70W listings at this time.