What is the difference between iron and wrought iron
This kind of hard and brittle properties of cast iron are generally used as raw material for steelmaking. Cast iron in carbon flake graphite form exists, its fracture is gray, usually known as gray iron. Because graphite is soft, with lubrication, so the cast iron has good abrasion resistance, cutting and casting performance. But the tensile strength it is not enough, so it can not be forged, can only be used in the manufacture of various castings, such as a variety of machine tool bed casting base, iron pipe. Ductile iron to carbon in the form of spherical graphite, which is far better than the mechanical properties of gray cast iron and close to steel, it has excellent casting, machining and wear resistance, have certain the elastic, widely used in the manufacture of gear, crankshaft, piston and a variety of advanced casting machine parts. In addition to silicon, manganese, nickel or other elements of a particularly high amount of iron, alloy iron, such as ferrosilicon, ferromanganese smelting, used to do The raw material of steel. The addition of certain alloy pig iron in steel-making can improve the properties of steel
Generally refers to the iron alloy carbon content in 2~4.3% iron. Also called iron. Iron in addition to carbon, silicon, manganese and also contains a small amount of sulfur and phosphorus, it can cast NONMALLEABLE. According to the different forms of carbon in pig iron, and can be divided into several kinds of iron and iron for steelmaking, casting ductile iron. Steel and iron in carbon mainly exists in the form of iron carbide, the white section, usually called white iron.
Generally less than 0.2% carbon content that wrought iron or iron, the content of 0.2-1.7% in the steel, content of more than 2% is iron. Iron soft, good plasticity, easy deformation, strength and hardness were lower, not widely used; iron carbon, hard and brittle, almost no plastic.
