Carburizing agent used in casting, cast iron, cast steel, castings will have a requirement for carbon, then carburizing agent as the name implies is to increase the carbon content in liquid iron, and for example, in smelting commonly used furnace for pig iron, scrap, return charge, pig iron carbon content is high, but the purchase price relative to scrap is higher than a section, so increase the amount of scrap, reduce the amount of pig iron, Adding carburizer can play a certain role in reducing casting cost.
