... ;AISI4340;410SS and so on Vavle forging SA105,SA350LF2,LF6,F304,F316,304L,316L,F51,F53,F321,etc Forged ring 42CrMo4 ... 12Cr2Mo1, 14Cr1Mo, 42CrMo,AISI 4130,AISI4330,SA266,SA182,SUS304,SA336 and so on 3. Supply range:OD.200-800 mm,Weight ... : Normalized / Annealed / Quenched / tempered 7. Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional) 8. Inspection Equipments ...