... ,B7,B16,F11,F12,F22,F5,F9,51Cr4. ALLOY STRUCTURAL STEEL BAR GRADES CHEMICAL COMPOSTIONS% % JISAISIDINCSiMnPSNiCrMoOTHERS40Mn2SMn438134042Mn60.37 0.440.17 0 ... details will be as per agreed technical specifications AISI 1340 steel bar/1340 alloy round ...