ASTM SA-36 ASTM SA-105 C20 C-45 C-50 C-60 20C8 40C8 45C8 55C8 C55MN75 CK-45 EN1A LEADED AND NON-LEADED EN3B EN8 EN8D EN8M EN9 EN32B EN43B IS2062 MS SAE 1018 S40C S355J2G3
