42CrMo,4140,40Cr alloy steel flat bar 1) Grade: Alloy steel flat bar 42CrMo, 4140, 40Cr 2) Specification: 10-120mm * 200-800m 4140 ... )4.Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)5.Technical Data: According to the customer ... weight (kg) is painted. 42CrMo,4140,40Cr alloy steel flat bar