The noun steel originates from the Proto-Germanic adjective **stahliją or **stakhlijan 'made of steel', which is related to **stahlaz … See more

When iron is smelted from its ore, it contains more carbon than is desirable. To become steel, it must be reprocessed to reduce the carbon to the correct amount, at which point other … See more

The steel industry is often considered an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development. In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of … See more

Carbon
Modern steels are made with varying combinations of alloy metals to fulfil many purposes. See more

Origins and production
Iron is commonly found in the Earth's crust in the form of an ore, usually an iron oxide, such as magnetite or hematite. Iron is extracted from See more

Ancient
Steel was known in antiquity and was produced in bloomeries and crucibles.
The earliest known production of steel is seen in pieces of … See more

Steel is one of the world's most-recycled materials, with a recycling rate of over 60% globally; in the United States alone, over 82,000,000 … See more