Is Carbon Steel Better than Mild Steel Difference Between Carbon Vs. Mild Steel Low carbon steel or mild steel Low carbon steel has 0.04–0.3% carbon content and is the most common grade of carbon steel. Mild steel is also considered low carbon steel because it is defined as having a low carbon content of 0.05 to 0.25%. Mild metal is ductile, distinctly moldable, and may be used for frame parts, plates, and cord merchandise. At the better give up of the low carbon content material variety, and with the addition of manganese of as much as 1.5%, mechanical houses are appropriate for stampings, forgings, seamless tubes, and boilerplates . Medium carbon steel has a carbon range of 0.31–0.6% and a manganese range of 0.6–1.65%. It can be heat treated and quenched to further adjust the microstructure and mechanical properties High carbon steel has a carbon range of 0.6–1% with a 0.3–0.9% manganese content. The features of high carbon stee...