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ANSWER: ASTM A1011 HSLAS steel is the hot rolled flat steel sheet or steel strip carbon high strength low alloy quality steel. A1011 HSLAS have six grades, they are : ASTM A1011 ,A1011 HSLAS Grade 45(310), A1011 HSLAS Grade 50(340), A1011 HSLAS Grade 55(380), A1011 HSLAS Grade 60(410), A1011 HSLAS Grade 65(450), A1011 HSLAS Grade 70(480). All the grades has class 1 and class two series material.
A1011 HSLAS pickled steel is under the American standard ASTM A1011/A1011M. “HS” means high strength, “LA” means low alloy, “ S” means steel.