ASTM A53 steel pipe is a steel grade produced according to American ASTM standard, belonging to American standard grade. Among them, ASTM A53 steel pipe corresponds to domestic A235 steel, ASTM A53 grade A steel pipe corresponds to domestic 10# steel, and ASTM A53 grade B steel pipe corresponds to domestic 20# steel.
Q235 steel pipe belongs to common carbon structural steel, also known as A3 steel. Q represents the yield limit of this material, followed by 235, which refers to the yield value of this material, about 235MPa.
The yield value of Q235 steel pipe decreases with the increase of its thickness. Because Q235 steel pipe has moderate carbon content, better comprehensive properties and better matching of strength, plasticity and welding properties, it is most widely used.
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