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ASTM A709 Grade 50 steel plate for bridge
ASTM A709 Grade 50 steel plate is used in the "as supplied" condition. Other grades of steel covered by this specification may require heat treatment at 1700 F and water quench followed by tempering, but that is not required for Grade 50.ASTM A709 Grade 50 steel plate may be cold worked by conventional methods as it has good ductility.
Mechanical Properties of ASTM A709 Grade 50 steel plate:
Tensile: 65 KSI min
Yield: 50 KSI min
Elongation: 16% min in 8” 19% min in 2”
Size of ASTM A709 Grade 50 steel plate for bridge:
Thickness: 4.5-200mm
Width: 1600-4000mm
Length: 3000-18000mm
A709 Grade 50 steel plate for bridge have a higher strength, toughness and bear the load and impact of locomotives and vehicles, and have a good anti-fatigue, a certain low-temperature toughness and resistance to atmospheric corrosion.