Pig Iron Specification

Pig Iron Specification

Pig iron, also called crude iron, is an intermediate product of the iron business within the manufacturing of metal which is obtained by smelting iron ore in a blast furnace. Pig iron has a really excessive carbon content, typically 3.eight–four.7%, together with silica and different constituents of dross, which makes it very brittle and never helpful immediately as a cloth apart from limited functions. There’s a blast furnace, but there may be additionally the production of pig iron, an intermediate product; the continuous caster, which creates massive slabs; and the rolling mill, which flattens these slabs to a buyer’s specs. There’s a blast furnace, but there is additionally the manufacturing of pig iron, an intermediate product; the continuous caster, which creates giant slabs; and the rolling mill, which flattens these slabs to a customer’s specs.

what is pig iron

This is achieved by remelting pig iron, usually together with substantial portions of steel and scrap iron, removing undesirable contaminants, adding alloys, and adjusting the carbon content. Some pig iron grades are appropriate for producing ductile iron. These are high purity pig irons and relying on the grade of ductile iron being produced these pig irons may be low in the parts silicon, manganese, sulfur and phosphorus. These forms of pig iron are used to dilute all the weather in a ductile iron cost which can be dangerous to the ductile iron course of. iron tapped from a blast furnace and solid into pigs in preparation for conversion into metal, forged iron, or wrought iron.


It was the primary to introduce low phosphorous foundry-grade pig iron in India. The Company additionally commissioned an 800,000 tones’ sintering facility that may enable the PID to partially meet its iron ore requirement with sintered iron ore fines, leading to important price financial savings and increasing efficiencies. Pig iron is produced by smelting or iron ore in blast furnaces or by smelting ilmenite in electrical furnaces. Pig iron, crude iron obtained instantly from the blast furnace and solid in molds.

We are lengthy-time period suppliers to a few of the world manufacturers & OEMs from automobile industry and a number of the most reputed metal mills and foundries. Since coal fires required a unique kind of cookware, investment poured into brass and iron, hastening the event of pig iron—hastening, that’s, the onset of the Industrial Revolution. The IIMA is dedicated to these involved within the ore-primarily based metallics value chain – raw material supply, production and transformation, buying and selling and distribution, transportation and logistics, technology and equipment.

Dictionary Entries Near Pig Iron

The scorching metallic was then poured right into a steelmaking vessel to produce steel, sometimes an electric arc furnace, induction furnace or basic oxygen furnace, the place the excess carbon is burned off and the alloy composition controlled. Earlier processes for this included the finery forge, the puddling furnace, the Bessemer process, and the open fireside furnace. Traditionally, pig iron was worked into wrought iron in finery forges, later puddling furnaces, and extra recently, into metal. In these processes, pig iron is melted and a robust present of air is directed over it whereas it is stirred or agitated. This causes the dissolved impurities to be completely oxidized. An intermediate product of puddling is called refined pig iron, finers steel, or refined iron.

These liquid products are drained from the furnace at regular intervals. The hot air that was blown into the underside of the furnace ascends to the highest in 6 to eight seconds after going via numerous chemical reactions. Once a blast furnace is started it’ll continuously run for four to 10 years with only quick stops to carry out deliberate upkeep.

The Primary Known Use Of Pig Iron Was

Steel Dynamics, which has facilities situated in the U.S. and in Mexico, produces steel products, liquid pig iron, and processes and sells ferrous and nonferrous scrap. Modern steel mills and direct-discount iron plants switch the molten iron to a ladle for immediate use in the steel making furnaces or solid it into pigs on a pig-casting machine for reuse or resale. Modern pig casting machines produce stick pigs, which break into smaller 4–10 kg piglets at discharge. The section transition of the iron into liquid within the furnace was an avoided phenomenon, as decarburizing the pig iron into metal was a particularly tedious course of using medieval expertise.

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