What are other metals that are similar to wrought iron?

Wrought iron is a very specific type of iron. Other irons, and steel, are very different. The difference hinges upon the amount of carbon that exists in the metal.

How is wrought iron different from steel?

Steel is a metal alloy whose major component is iron, with carbon being the primary alloying material. Carbon acts as a binding agent, locking the otherwise easily-moved iron atoms into a rigid lattice. Varying the amount of carbon and its distribution in the alloy controls the qualities of the resulting steel. With the increased carbon, steel is harder and has a much higher tensile strength than iron, but is also more brittle. One classical definition is that steels are iron-carbon alloys with up to 2.1 percent carbon.

How is pig iron different from wrought iron?

Pig iron is raw iron, the immediate product of smelting iron ore with coke and limestone in a blast furnace. Pig iron has a very high carbon content, typically 4-5%, which makes it very brittle and not very useful directly as a material.

Pig iron is typically poured directly out of the bottom of the blast furnace into pots to form ingots. The ingots are then used to produce wrought iron or steel, typically with a bessemer converter or basic oxygen furnace, by buring off the excess carbon in a controlled fashion.

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