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The equivalent material of GB/T700 Q275 carbon steel and low alloy steel plate is S275JR steel plate. S275JR steel plate is a general-purpose carbon structural steel. This steel is similar to the steels listed in China GB/T700 and GB/T1591. It is also a carbon structural steel and low alloy structural steel used in engineering steel and structural steel, which is usually not heat treated. 

ASTM A709 steel plate is in accordance with the standard specification for bridge structural steel, ASTM A709 steel plate is a carbon, high strength low alloy and quenched and tempered alloy steel mainly used in bridge construction.

ASTM A656 steel plate is a high-strength low-alloy steel used in structural applications. In structural applications, light weight and good formability are essential. ASME A656 steel plates are manufactured in different grades of 50, 60, 70 and 80 to the specified yield point.

ASTM A633 steel includes four grades: A, C, D, and E, of which the thickness of grade C can reach 4 inches and the thickness of grade E can reach 6 inches. ASTM A633 steel specification is based on the standard specification for standardized high-strength low-alloy structural steel plate, which requires high notch toughness under low temperature conditions.

ASTM A588 steel is classified into Class A, Class B, Class C, and Class K. The ASTM A588 steel specification is based on the standard specification for high-strength low-alloy structural steel with a lower yield point of up to 50ksi for applications requiring high strength and corrosion resistance.

ASTM A573/A573M grades include 58, 65 and 70. Steel plates are suitable for structural carbon-manganese-silicon steel plates with three tensile strength ranges. ASTM A573/A573M steel plates are mainly used to improve notch toughness at room temperature.

A572 steel has four different grades: 42, 50, 60 and 65. Each of these grades differ in their mechanical properties and chemical composition.

ASTM A514 steel is available in several grades: A, B, C, E, F, H, J, K, M, P, Q, S, and T, all of which have the same mechanical properties. ASTM A514 steel plates are conventionally quenched and tempered steel. ASTM A514 steel plate is known for its high yield strength, weldability and toughness. ASTM A514 steel is a special high-strength steel, mainly used as building structural steel.

ASTM A283 is a carbon steel plate used for general structural purposes. The steel has low and medium tensile strength. The ASTM A283 steel specification covers four structural quality grades of mild steel, grades A, B, C, and D, for general application.