304 Stainless Steel. Shall consist on non-magnetic, 304/ stainless steel free of any iron, insulation or other contaminates. Usually found in dairy, hog, and food industries.• Using steel scrap in the production process reduces CO 2 emissions by 58%. • Recycling steel saves 72% of the energy needed for primary production (i.e., 4,697 kWh per tonne). • Recycling one tonne of steel saves 1.4 tonnes of iron ore, 0.8 tonnes of coal, 0.3 tonnes of limestone and additives, and 1.67 tonnes of CO 2.Ferrous and Non Ferrous Metals. For the most part, ferrous scrap metals tend to be in good supply and non ferrous scrap metals are somewhat harder toe by and more difficult to create. This makes the demand higher for non ferrous scrap metals. Ferrous metals have iron such as cast iron, wrought iron, carbon steel, mild steel, and stainless ...Waste steel crushing tailings separation production line. Scrap scarp usually contains a lot of iron, and other Non-ferrous metal and stainless steel, the main source of profit for scrap pieces after recycling scrap steel to be processed, usually, scrap steel crushing plants take away the iron and the metal in the waste is not sorted.