A36 is ordinary carbon steel, which implements the standard ASTM A36/A36M-03a. The tensile strength of A36 is 58~80 Ksi (about 400~550MPa), and the yield strength is 36 Ksi (about 250MPa), which corresponds to the domestic Q235 material.

ASTM-A36 is a US-standard carbon structural steel plate, and its implementation standard is ASTM's special technical conditions. ASTM is the abbreviation of the American Society of Testing and Materials, and A36 refers to the grade of this steel plate.

Chemical composition and alloy elements of A36 steel plate:
C: ≤0.25%; Si≤0.4%; Mn: 0.8-1.2%; P≤0.04%; S: ≤0.05%; Cu0.2%

Yield strength: ≥250. Tensile strength: 400-550. Elongation: ≥20.

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