How stainless steel is made - material, manufacture, used,
To make stainless steel, the raw materials—iron ore, chromium, silicon, nickel, etc.—are melted together in an electric furnace. This step usually involves 8 to 12 hours of intense heat. Next, the mixture is cast into one of several shapes, including blooms, billets, and slabs.12.5 Iron And Steel Production - US EPA,The sintering process converts fine-sized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product,Iron processing - The metal | Britannica,In this process, cementite is decomposed to form rosette-shaped graphite nodules, which are less embrittling than flakes. Blackheart iron is an important material that is widely used in agricultural and engineering machinery.