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.Environmental Impact Economics Metal Extraction mining,,Recycling cast iron or steel alloy scrap is a good example of some of the points discussed above, they can both be melted into freshly made iron or steel. About 42% of iron or steel in manufactured goods is recycled iron/steel, whether it be steel pans, car bodies, bridge girders, stainless steel cutlery etc.Trade in Minerals - World Trade Organization,energy, labor, and capital at the surface. Mining is therefore very similar to manufacturing. The main difference is that with manufacturing raw materials are brought to fixed locations where they are combined with labor and capital, while in mining labor and capital are brought to the raw materials and combined at the location of the rock.