Low Carbon Seamless Steel Pipe Hot Rolled Black Round AISI 1020 1045 C45 Q235

Low carbon steel is carbon steel with carbon content less than 0.25%. It is also called soft steel because of its low strength, low hardness and softness. It includes most of the ordinary carbon structural steel and part of the high quality carbon structural steel, most of the engineering structural parts without heat treatment, and some of the carburizing and other heat treatment for wear-resistant mechanical parts. [1] The annealed microstructure of low carbon steel is ferrite and a little pearlite, which has low strength and hardness, good plasticity and toughness. Therefore, its cold formability is good, can be used to roll, bending, stamping and other methods for cold forming. This steel also has good weldability. Low carbon steel with carbon content from 0.10% to 0.30% is easy to accept all kinds of machining such as forging, welding and cutting, and is often used in the manufacture of chains, rivets, bolts, shafts, etc.

The annealed structure of low carbon steel is ferrite and a little pearlite, with low strength and hardness, good plasticity and toughness. Therefore, its cold formability is good and can be used for cold forming methods such as crimping, bending and stamping. This kind of steel has good weldability. Low carbon steel with low carbon content has low hardness and poor machinability, and quenching treatment can improve its machinability.