... Standard:42CrMo4,25CrMo4,34CrNiMo6,39CrNiMo3,17NiCrMo6,18CrNiMo7-6,S355J2G3,ASTM A105,ST52-3,16MnCr5,20MnCr5,16MnCrS5,20MnCrS5,21CrMoV511,56NiCrMoV7 ... B16,F11,F12,F22,F5,F9,51Cr4.ALLOY STRUCTURAL STEEL BAR GRADES CHEMICAL COMPOSTIONS% % JISAISIDINCSiMnPSNiCrMoOTHERS40Mn2SMn438134042Mn60.37 0.440.17 ... details will be as per agreed technical specifications ASTM 4135 steel bar/astm 4135 alloy round steel ...