THE CLASSIFICATION AND APPLICATION OF STEEL

Steel is steel ingot, billet, or through the pressure required for performance of various shapes, sizes and materials. Steel is an essential part of national construction and realize the four modernizations important materials, widely used, wide variety, general component is according to the different cross section shape, steel profiles, sheet, pipe and metal products in four categories, to facilitate the organization of steel production, the order of supply and do well the management work, is divided into heavy rail, light rail, large steel, medium shape and small section steel, steel cold bending steel, high-quality steel, wire rod, medium plate, sheet metal, electrical silicon steel sheet, strip steel, seamless steel pipe, steel welded steel pipe, metal products and other varieties.

China imported steel or steel importer, 2004 to 29.3 million tonnes. For such a world steel production, consumption and trade powers, February 28, 2005, baosteel “forced” to accept the requirements of the international mining giant iron ore rises in price considerably, the domestic industry to restore the call for steel futures trading is also growing. How to become an international steel pricing center, China’s economic interests, has become the focus of more and more people.

Steel widely used, wide variety, general component is according to the different cross section shape, steel profiles, sheet, pipe and metal products in four categories: steel, steel ingot, billet, or through pressure processing is made of the performance of various shapes, sizes and materials. Most steel processing is a steel through pressure processing, make the processing of steel, billet, ingot, etc.) to produce plastic deformation. According to the steel processing temperature is different, can be divided into two kinds of cold and hot working.