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ANSWER: A1011 CS Type D steel is the hot rolled flat steel sheet or steel strip carbon Structural Commercial quality steel.
A1011 CS Type D pickled steel is under the American standard ASTM A1011/A1011M. “C” means Commercial, “ S” means steel. A1011 CS Type D hot rolled steel yield strength is 205-340MPa, Minimum tensile strength is not specified. Minimum percentage elongation at fracture A% is 25%. The Carbon chemical composition of A1011 CS Type D is not more than 0.10%