GB/T 699 25# carbon steel is a low carbon steel at chinese standard. Compared with GB/T 699 20# carbon steel, 25# has higher strength. Generally speaking, GB/T 699 25# round bars is used after normalizing treatment, to guarantee the good properties.

GB/T 699 30# carbon steel is a low carbon steel at chinese standard. GB/T 699 30# carbon steel, usually needs to do normalizing treatment, or quenching and tempering treatment, to get good properties and machinability. For GB/T 699 30# carbon steel,w

CK60 steel is a kind of hypoeutectoid steel, strength, hardness and flexibility are very high, plasticity is low when in the cold deformation, poor machinability, welding and hardenability.

20# carbon steel is very common is china market under GB/T 699 standard. For GB/T 699 20# carbon steel,we henan bebon can offer forged round bars OD 80 mm - 1200 mm. GB/T 699 20# round bar is widely used in the various fields. GB/T 699 20# round bar