Question

The carbon % in Pig iron?

Answer 1

Hint: We have to know that Pig iron is the product obtained by smelting iron ore with a high-carbon fuel and reductant like coke, with limestone as a flux. We can also use Charcoal and anthracite as fuel and reductant. Pig iron is formed by smelting of iron ore in blast furnaces or by the process of smelting ilmenite carried out in electric furnaces.

Complete step by step solution:
We have to know that the term “pig iron” indicates the period when hot metal was cast into ingots before being indicted to the steel plant. The moulds were placed out in beds of sand such that they can be fed from a common runner. The collection of moulds looks similar to a litter of sucking pigs, the ingots known as “pigs” and the runner the “sow.”
We have to know that Pig iron is an intermediate product of the iron industry in the steel production. It is otherwise called crude iron. Pig iron is produced by smelting iron ore in a blast furnace. High carbon content, ranging from $3.8 - 4.5\% $ is present in pig iron. It also contains $92\% $ iron.
The cold form of pig iron is called merchant pig iron. It is cast to ingots and is sold as steel feedstock and ferrous casting industries. Merchant plants and integrated steel mills produce merchant pig iron.

Note: In simple words, the chemical state of iron in which iron exists when tapped from a blast furnace without any refinement (or) alloying is pig iron. Cast iron, wrought iron and steel could be obtained by the conversion of pig iron. Gray iron could be produced from pig iron. It also helps in producing ductile iron.