... shaft 17CrNiMo6;18CrNiMo7-6;20CrNi2Mo;42CrMo;47CrNiMo6;20CrMnMo;8822H Forged shaft 42CrMo4,50Mn,C45,AISI4130;AISI4330;AISI4150;AISI4350;AISI4340 ... ,LF6,F304,F316,304L,316L,F51,F53,F321,etc Forged ring 42CrMo4,P289GH,S355G2,1.4923,1.4301F316,F304,F51, ... treatment: Normalized / Annealed / Quenched / tempered 7. Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) 8 ...