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Pig iron for steel making and foundry pig iron, what are the main difference? - Foundry pig iron

by:XEX     2021-02-17
Pig iron for steel making silicon content is not greater than 1. 7%, carbon in Fe3c exist. With a white so harder and more brittle fracture. Foundry pig iron silicon content is 1. 25 - 3. 6%. And more carbon to graphite conditions exist. Fracture is gray, soft, easy to machining. Molten iron first first from ore smelting in blast furnace, this time of molten iron and impurities is higher, the carbon content can be used to cast iron block to the converter steelmaking, usually steelmaking time to add some low carbon, iron, the molten iron will also be able to further develop some impurities removed ( Contains nearly step decarburization) And make the iron carbon differentiation ( Silicon carbide, and sometimes will attend, this time make steel need to be considered in silicon content is promised) The storage conditions to separate, for casting parts ( Cast iron) 。 Pig iron carbon content is high, in the eutectic composition, the composition of cast iron is low in the eutectic composition. They further develop carbon reduction, Containing mixed low carbon iron) And further reduce the carbon content is steel. Also often attend other alloying elements in steel and through exercise control of steel alloy elements ( Contains carbon) Proportional relations, is refined into various types of steel, the process of steelmaking. See you say pig iron and cast iron can be used to make steel. Drop again become pure iron, carbon steel also called wrought iron. Wrought iron is very soft, pig iron smelting by wrought iron first is the lower carbon content. Xin, Johnson was founded in 2012 on April 8, the transportation is convenient in: guangzhou, high-speed, high-speed Shen Hai, same highways as well. Is a company specializing in the production of cast copper, cast iron, cast aluminum manufacturers.
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