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.
| Product Name | Dimensions |
| ASTM A709 Grade 36 | T: 0.1875 – 3.00 in L: 240 – 1200 in W: 72 – 120 in |
| ASTM A709 Grade 50 | T: 0.1875 – 3.00 in L: 240 – 1200 in W: 72 – 120 in |
| ASTM A709 Grade 50W | T: 0.1875 – 3.00 in L: 240 – 1200 in W: 72 – 120 in |
| ASTM A709 Grade HPS 50W | T: 0.50 – 2.00 in L: 240 – 1200 in W: 72 – 120 in |
| ASTM A709 Gade HPS 70W | T: 0.750 – 2.00 in L: 240 – 1176 in W: 72 – 120 in |
