... 5)Cert 3.1B Forged Shaft, Shaft Forging, Forging ShaftDetailed Description:1) Product Name: Forged Shaft, Shaft Forging2) Material: 4130, 4140 ... L/C.***Mill Frequently Used Steel Materials:1) Wind Power Shaft: 42CrMo4V, 34CrNiMo6; Wind Power Flange: S355NL, C22, ... , 15MnMo, 12Cr2Mo1, 14Cr1Mo, F304, F316, 17-4PH.4) Shaft Related Forgings: 25CrMo4, 42CrMo4, 40CrNiMo, 34CrNi3Mo, 25Cr2Ni4MoV, 18CrNiMo5, ...