Forged Shaft Material 42CrMo,42CrMo4,CK45,16Mn, Heat Treatment Normalizing,Quechning+Tempering. Applications ... , Coupling, RPV Stud Bolt, Pump ShaftMaterial Standard:GB, BS, ASTM, EN, DIN, AISI, JISForged shaft Material :Carbon steel, alloy steel, stainless steel ...