Forged Shaft Material 42CrMo,42CrMo4,CK45,16Mn, Heat Treatment Normalizing,Quechning+Tempering. Applications of Forged ... , 14Cr1Mo, F304, F316, 17-4pH. 4) Shaft Related Forgings 25CrMo4, 42CrMo4, 40CrNiMo, 34CrNi3Mo, 25Cr2Ni4MOV, 18CrNiMo5, 30CrMo, 4130, 4140. 5) Gear Related ... , 20Cr2Ni4A, 34CrNi3Mo.Ultrasonic Test Sep1921 Class C/c Forged Shafts 42CrMo4+Q/T