ASTM A709 A709 Grade HPS 70W / ASTM A709 Grade HPS 70W Steel - Specifications & Listings

ASTM A709 A709 Grade HPS 70W: 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.

Forms: Plate Category: Mild Steel
Grade Details
GradeASTM A709 A709 Grade HPS 70W / ASTM A709 Grade HPS 70W
StandardASTM A709
DescriptionHigh performance weathering steel for bridge construction with 485 MPa (70 ksi) yield strength. Superior toughness, weldability and corrosion resistance compared to conventional weathering steels.
ApplicationsHigh-performance steel (HPS) with enhanced atmospheric corrosion resistance and toughness; primary bridge girders and structural members in bridge construction
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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
Processing:

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ASTM A709 A709 Grade HPS 70W / ASTM A709 Grade HPS 70W Plate
3.200 MT
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ASTM A709 A709 Grade HPS 70W / ASTM A709 Grade HPS 70W Plate
3.100 MT
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