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A709 Carbon Structural Steel Coil
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 coils in the construction of bridges. It following five grades of A709; 36, 50, 50W, HPS 50W and HPS 70W.
A high-strength, low-alloy, hot-rolled structural steel coil utilized in structural applications where lighter weight and improved formability is critical. Applications include: truck frames, crane booms, and rail car components. Made to Grades 50, 60, 70 and 80, the grade designating the yield strength.
A588 Low Alloy Structural Steel Coil
ASTM A588 is a high strength low-alloy structural steel specification with higher strength and improved atmospheric corrosion resistance. It covers Grade A, Grade B, and Grade K. Grade A, B is the specification for atmospheric corrosion structural steel of High-Strength Low-Alloy, yield strength minimum 50 ksi 345 Mpa.
ASTM A573/A573M grades are divided into: 58, 65, 70, and the steel coils are suitable for structural grade carbon-manganese-silicon steel coils in three tensile strength ranges. ASTM A573/A573M steel coils are mainly used for important purposes of improving notch toughness at room temperature.
ASTM A572 steel coil is a popular grade of high-strength low-alloy (HSLA) steel that is typically used in structural applications. A572 steel contains chemical alloys that enhance the material’s hardness and ability to bear weight. There are five different grades of A572 steel coil: Grade 42, Grade 50, Grade 55, Grade 60 and Grade 65.
ASTM A537 standard refers to pressure vessel coils, material in heat-treated, carbon-manganese silicon steel. Based on different strength and heat treatment, it ranges to Class 1, 2 and 3. ASTM A537 Class 1 coils are supplied in the normalised condition whilst Class 2 coils are quenched and tempered.
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