Where Does Steel Come From?

Written by elisabeth dahl
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Where Does Steel Come From?
Steel made modern skyscrapers possible. (Image by Flickr.com, courtesy of Hamed Saber)

Steel, one of the most important metals of our modern world, is produced from iron ore. This strong, useful metal is employed in everything from serving spoons to skyscrapers.

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Iron

Iron ore that occurs naturally in the earth's crust must be transformed in order to produce one of the several useful metals derived from it, including cast iron, wrought iron and steel.

Carbon

The addition of a small amount of carbon, another element, to iron helps lend steel its strength.

Other Elements

Steel often contains elements other than iron and carbon: manganese, phosphorus, sulphur, silicon, nickel and chromium. Sometimes the elements are added intentionally. At other times, they occur naturally.

Steel Making

At a steel plant, a heat source is generated, then used to melt iron ore in a furnace. Molten iron is then processed to create steel.

Steel Industry

According to the U.S. Geological Survey, iron and steel are, on average, the least expensive materials available. Of all the tons of metal produced in the world each year, 95 per cent is iron and steel.

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