... ,42CrMo4, 4145H,4340, 316,316L, 321, 18CrNiMo7-6etc.) Production Alibilty: Shaft: Max OD 1500 Max Length 20mm Max Weigth 75T/pcs ... : Max OD 3000mm45# carbon steel, 42CrMo 4 alloy steel Forging Shaft Best offer for Forging Shaft with first class quality