ASTM A709 Grade 50

ASTM A709 specification covers carbon and high-strength low-alloy steel structural shapes, plates, and bars and quenched and tempered alloy steel for structural plates intended for use in bridges. Seven grades are available in four yield strength levels
as follows:
Grade U.S. [SI] Yield Strength, ksi [MPa]
36 [250]               36 [250]
50 [345]               50 [345]
50S [345S]             50 [345]
50W [345W]           50 [345]
HPS 50W [HPS 345W]   50 [345]
HPS 70W [HPS 485W]   70 [485]
HPS 100W [HPS 690W]  100 [690]

ASTM A709 Grade 50 specification covers carbon and high-strength low alloy steel structural shapes, plates and bars, and quenched and tempered alloy steel for structural plates intended for use in bridges. Heat analysis shall be used to determine the percentage of carbon, manganese, phosphorus, sulfur, silicon, and copper for the required chemical composition. A tension test shall be used to determine the required tensile properties such as tensile strength, yield strength, and elongation. Materials shall undergo: (1) an impact test for non-fracture critical and fracture critical members; and (2) a Brinell hardness test for Grades 100 and 100W. Atmospheric corrosion resistance shall also be determined. ForGrades36[250]and50[345],the steel shall be semi-killed or killed

For Grades 36 [250], 50 [345], and 50W [345W], and non-quenched and tempered Grades HPS 50W [HPS 345W] and HPS 70W [HPS 485W], location and condition, number of tests, and preparation of test specimens shall meet the require-ments of Specification A 6/A 6M.

ASTM A709 Grade 50 Chemical composition:

ASTM A709 Grade 50 Mechanical properties:

Shanghai Katalor can supply Steel plate A709 Grade 50 specification with stock or directly from the mill. We also offer an in house profiling service where the Steel plate A709 Grade 50 specification can be cut to the size or shape you require.If you need Steel plate A709 Grade 50 specification,please feel free contact with us.