The pot is pig iron or wrought iron?
Pig iron is generally referred to as an alloy of iron containing carbon in 2~4.3%. Also called cast iron. In addition to containing carbon, pig iron also contains silicon, manganese and a small amount of sulfur, phosphorus and so on, it can be cast can not be forged. According to the different form of carbon in pig iron, it can be divided into several kinds, such as steelmaking pig iron, casting pig iron and nodular cast iron. Carbon steel-making pig iron mainly exists in the form of iron carbide, the white section, usually called white iron. The pig iron is hard and brittle, and is generally used as raw material for steelmaking. Cast iron in carbon flake graphite form exists, its fracture is gray, usually known as gray iron.
Generally less than 0.2% carbon content that wrought iron or iron, the content of 0.2-1.7% in the steel, is iron content of more than 1.7%. Soft wrought iron, good plasticity, easy deformation, strength and hardness were lower, not widely used; iron carbon, hard and brittle, almost no plastic
Because of its soft and lubricated graphite, casting pig iron has good cutting, wear resistance and casting properties. But its resistance to strength is not enough, it can not be forged, and can only be used to make a variety of castings, such as casting all kinds of machine tools, bed seats, iron pipes and so on. 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, has a certain flexibility, widely used in the manufacture of gear, crankshaft, piston and a variety of advanced casting machine parts. In addition, there are silicon, manganese, nickel or other elements particularly high in pig iron, called alloy pig iron, such as ferrosilicon, ferromanganese, etc., commonly used as steelmaking raw materials. The addition of certain alloy pig iron in steel-making can improve the performance of steel.
It can be divided into 1., pig iron and wrought iron. When the fire wrought iron thin, easy to coke pot.2. pig iron bulky, but the bottom thickness, heating evenly, easy to control, and can add iron.3. many supermarkets now see is the pan Aluminum Alloy wrought iron, light.
