ASTM A709

The ASTM A709 is the Standard Specification for Structural Steel for Bridges and encompasses carbon, high-strength low-alloy, and quenched and tempered alloy steels used as structural plates in the construction of bridges. SSAB offers the following five grades of A709; 36, 50, 50W, HPS 50W and HPS 70W. The three weather grades of 50W, HPS 50W, and HPS 70W have an ASTM G101 enhanced Atmospheric Corrosion Resistance Index of ≥6.0.

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ImperialMetric
Product Name

ASTM A709 Grade 36

Dimensions
T: 0.1875 - 3.00 in
L: 240 - 1200 in
W: 72 - 120 inT: 4.762 - 76.2 mm
L: 6100 - 30480 mm
W: 1800 - 3050 mm
Datasheet
Product Name

ASTM A709 Grade 50

Dimensions
T: 0.1875 - 3.00 in
L: 240 - 1200 in
W: 72 - 120 inT: 4.762 - 76.2 mm
L: 6100 - 30480 mm
W: 1800 - 3050 mm
Datasheet
Product Name

ASTM A709 Grade 50W

Dimensions
T: 0.1875 - 3.00 in
L: 240 - 1200 in
W: 72 - 120 inT: 4.762 - 76.2 mm
L: 6100 - 30480 mm
W: 1800 - 3050 mm
Datasheet
Product Name

ASTM A709 Grade HPS 50W

Dimensions
T: 0.50 - 2.00 in
L: 240 - 1200 in
W: 72 - 120 inT: 13 - 50.8 mm
L: 6100 - 30480 mm
W: 1800 - 3050 mm
Datasheet
Product Name

ASTM A709 Gade HPS 70W

Dimensions
T: 0.750 - 2.00 in
L: 240 - 1176 in
W: 72 - 120 inT: 19.0 - 50.8 mm
L: 6100 - 29870 mm
W: 1800 - 3050 mm
Datasheet