What does just for pig iron mean?

1. iron tapped from a blast furnace and cast into pigs in preparation for conversion into steel, cast iron, or wrought iron. 2. iron in the chemical state in which it exists when tapped from the blast furnace, without alloying or refinement. Most material © 2005, 1997, 1991 by Penguin Random House LLC.

How pig iron is obtained from a blast furnace?

Blast furnaces produce pig iron from iron ore by the reducing action of carbon (supplied as coke) at a high temperature in the presence of a fluxing agent such as limestone.

What is the difference between iron and pig iron?

The main difference between cast iron and pig iron is that: (A) Cast iron is purest form of iron while pig iron is impure. (B) Cast iron has lower carbon content (3\%) as compared to pig iron (4\%) and is extremely hard and brittle. Along with carbon, Si, P and Mn are also present in pig iron as impurity.

What is composition of pig iron?

Pig iron is basically an alloy of iron (Fe), carbon (C), silicon (Si), and manganese (Mn). It also contains some percentage of sulphur (S) and phosphorus (P) as impurity elements, along with some titanium (Ti) and other trace elements. The C content of pig iron is high, typically in the range of 3.5 \% to 4.5\%.

What is the difference between pig iron cast iron and wrought iron?

The key difference between pig iron and wrought iron is that pig iron is the impure form of iron, whereas wrought iron is the purest form of iron. …

How is steel produced from pig iron?

Basic oxygen steelmaking is a method of primary steelmaking in which carbon-rich molten pig iron (the iron created in the blast furnace) is made into steel. Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.

What is pig iron made from?

iron ore
Pig iron is a solid form of hot metal, obtained from iron ore or scrap recycling, and it is processed with blast furnace or electric arc furnace. Pig iron is used as a raw material for iron steel making and most of this material was imported.

What are the functions of pig iron?

Pig iron is the metallic ore that contains 90\% of iron. Pig iron is used for making steel and pure iron units. It has very high carbon content along with silica and another constituent of dross. Pig iron made from smelting iron indulges with the high amount of carbon for further processing steps.

How is pig iron converted into cast iron in cupola furnace?

CAST IRON IS MADE FROM PIG IRON BY MELTING PIG IRON WITH IRON SCRAP AND COKE AND BY PASSING HOT AIT BLAST INTO THE MIXTURE. CAST IRON HAS 3\% CARBON CONTENT LOWER THAN PIG IRON. CAST IRON IS HARD AND BRITTLE.

Where is pig iron found in the blast furnace?

In modern times, pig iron is typically found at the bottom of the blast furnace and utilized. Because of the extreme heat, the pig iron turns into its liquid form called hot metal. This hot metal will then be poured in a vessel for steelmaking.

What is a pig in the iron industry?

The term ‘pig’ is an old expression in the iron industry and comes from the sand molds into which the streaming, molten iron is poured. As the liquid iron is poured from the furnace, it runs into a central trough or runner and then into small molds arranged on each side of the trough.

Why is the Central runner called pig iron?

The central runner is supposed to resemble a pig’s sow, while the pieces of pig iron connected to the runner are its piglets, hence the reason why it is called “pig iron.” History of the Pig Iron