Carbon steel bar

Steel round bar is divided into three types: hot rolled, forged and cold drawn.Hot rolled round steel bar is 5.5-250 mm in size.Among them :5.5-25 mm small round steel mostly in straight bundles supply, commonly used for reinforcing bars, bolts and various mechanical parts;Round steel larger than 25 mm, mainly used in the manufacture of machine parts, seamless steel tube billet, etc.

Carbon structural steels are divided into five grades according to their yield strength:

Q195、Q215、Q235、Q255、Q275

Each brand is divided into A, B, C, D grades due to different quality, the most have four kinds, some have only one;Still have steel smelting additionally deoxidize method distinction.

Round steel material : Q195, Q235, 10#, 20#, 35#, 45#, Q215, Q235, Q345, 12Cr1MoV, 15CrMo, 304, 316, 20Cr, 40Cr, 20CrMo, 35CrMo, 42CrMo, 40CrNiMo, GCr15, 65MN, 50Mn, 50Cr, 3Cr2W8V, 20CrMnTi, 5CrMnMo, etc.

OD Scope：