Steel and iron materials other than metal known as non-ferrous metal materials and non-ferrous metal materials. Non-ferrous metals are more than 80 species, generally consists of : light metal, the density of not more than 4.5g/cm3, Common light metal aluminum, magnesium, titanium, potassium, sodium, calcium and lithium; heavy metals, density greater than 4.5g/cm3, commonly used heavy metals copper, lead, zinc, nickel, cobalt, antimony, tin, bismuth, mercury, cadmium, etc.; Precious metals, including gold, silver, and PGE; refractory metals, including tungsten, molybdenum, tantalum, niobium, zirconium, hafnium, vanadium, Re; Rare Earth, including Sc, yttrium, and lanthanum element; radioactive metals, including polonium, radium, and actinides, thorium, uranium and other elements; semi-metal, its physical and chemical properties range between metal and non-metallic elements such as silicon, selenium, arsenic, boron, and so on.
Currently, the world's metal output of about 1.011 billion t, which accounts for about 95% of steel, Metal is the mainstay. non-ferrous metal materials account for about 5%, at the added status But it is the role of iron and steel materials and beyond.
First, the non-ferrous metal is all steel, alloy iron alloy elements, add a small amount, even trace non-ferrous metals in ordinary steel, receive all kinds of special properties of iron and steel materials, thus maximizing the potential of the steel material. Many non-ferrous metals can be applied to a state of pure metal industrial and scientific technology. Such as Au, Ag, Cu, Al as a conductor of electricity, Ti components for corrosion resistance, W, Mo, Ta body for high-temperature fever, Al, Sn foil for food packaging, Hg for Instrumentation, Silicon is the electronics industry's survival and development of the materials.
