1. The standard: GB/T-42CrMo AISI-4140 DIN-42CrMo4 JIS ¡§CSCM440 2. Length: 3000mm-6000mm 3. Dia: 80mm-800mm 4. Process: EAF+LF+VOD+Forged+Heat Treatment(optional) 5. Delivery condition: Hot forged +Rough machined(black surface after Q/T); Hot forged + Rough machined + Turned 6. Test: Ultrasonic test according to SEP C/c` 7. Technical Data: According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing 8. Material details will be as per agreed technical specifications specification: 120mm,140mm,160mm,180mm(diameter) the length can meet demand of client,the weight is up to the diameter and the length.