Is cast iron considered a pig iron?
Ordinary pig iron accounted for more than 98% of the blast furnace smelting products, and smelting iron and steel accounted for more than 80% of the ordinary pig iron in our country at present. With the improvement of industrialization level, this proportion will gradually increase.
Pig iron can also be divided into ordinary pig iron and alloy pig iron. The former includes pig iron and cast iron, the latter mainly ferromanganese and ferrosilicon. Alloy pig iron is used as auxiliary material for steelmaking, such as deoxidizer and alloy element additive.
Pig iron is a blast furnace product, and can be divided into two categories: steelmaking pig iron and casting pig iron according to its use. Traditionally pig iron is called pig iron and cast pig iron is referred to as cast iron. Cast iron by forging, metamorphism, spheroidizing method can change the internal structure and improve its mechanical properties, therefore, cast iron can be divided into white cast iron, gray iron, malleable iron, ductile iron and special cast iron etc..
