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ANSWER: ASTM A1008 CS steel is commercial steel, “C” means Commercial. A1008 CS steel has three different type: A1008 CS Type A, A1008 CS Type B, A1008 CS Type C
The carbon composition of A1008 CS Type A is not more than 0.10%.
The carbon composition of A1008 CS Type B is not more than 0.02-0.15%.
The carbon composition of A1008 CS Type C is not more than 0.08%.
The yield strength of A1008 CS A/B/C is max 140-270MPa, tensile strength is max 350MPa, Elongation 50mm is min 30% .