Hebei ChongSheng Special Steel Pipe Co.,Ltd.

Production of raw steel Raw materials Source of steel is iron ore, namely iron (Fe) exists in nature in the form of pure iron does not exist in nature , the iron ore is divided into magnetite, hematite , limonite three species , which are oxides of iron , except that for the oxidation mode .

The iron content of iron ore as high as possible , in theory, the highest iron content of iron ore at about 72% , more than 60% iron content in the ore is called rich . The first reduction in the furnace of iron ore into iron ( pig iron ) , and then into the steelmaking furnace decarbonization refining into steel , scrap can be regenerated in smelting furnaces . The general nature of the steel made in accordance with the intended use and shapes of goods, both the so-called iron and steel products .

Iron and steel products is usually iron ore reduction , melting into pig iron ( refining and milling ) , refined pig iron into steel ( steel ) , steel re- rolling , processed into a variety of steel products, iron and steel products contain broad cast iron, cast steel, forged steel products and steel processing products. Before discussing the raw material of steel , we need to figure out exactly what is the difference of steel and iron ? Are there different components of it? In daily life we always put on steel and iron linked together referred to as " steel " , carbon seamless steel pipe manufacturer china visible steel and iron should be a matter fishes ; fact, the scientific point of view, steel and iron is a little different their main ingredients are of iron , but the amount of carbon contained in the different elements . We carbon content generally called " pig " of 2% or more lower than this value is called " steel ." Thus, in the steel smelting process, the first iron ore in a blast furnace (blast furnace) ( BF ) in the molten pig iron is smelted into , and then again into the molten pig iron furnaces (steel making furnace) in refined steel.

Steel raw materials needed to discuss were divided into four categories : The first category is discussed in a variety of raw ore containing iron ; second category is coal and coke ; third category is discussed in the smelting process used to make clinker (sl * g) of the flux (or flux flux), such as limestone , etc. ; last category is a variety of auxiliary materials , such as scrap material (scrap), oxygen.

Hebei ChongSheng Special Steel Pipe Co.,Ltd.