Hot rolled steel

High carbon steel is used where greater strength is required and this high strength is obtained through final heat treatment. There are two product groups: high carbon steel products with carbon content of more than 0.30wt.% or those with added alloy elements such as Mn, Cr, Mo, B, and Ni with carbon content of more than 0.15wt.%.

The final specified physical properties of high carbon steel are achieved mostly through the process of hot rolling, pickling, cold rolling and annealing. Final heat treatment is performed after the steel is processed and made into parts.

High carbon steel can be broadly categorized into high carbon steel for machine structures, high carbon steel for tools and construction products. Then, each category can be divided into general high carbon steel and alloy high carbon steel.