What is A709-50T-2 structural steel for bridges

A709-50T-2 meaning: A709 refers to the American standard: ASTM A709/A709M structural steel for bridges; 50 is the grade in the ASTM A709/A709M standard, that is, structural steel for bridges with a yield strength ≥345MPa; T: non-critical fracture Tensile members, products used for tensile members in non-critical fracture structures; steel grades without T or F suffixes do not require impact testing, but can only be used for non-tensile members or secondary members; 2 is the Charpy V-notch impact test area code, also known as grade.

A709-50T-2 steel plate thickness range: 8-100mm. A709-50T-2 structural steel is used to make riveted and bolt-welded road bridges and railway bridges, including cross-sea bridges.