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glossary term

Direct Reduced Iron (DRI)

The creation of iron from iron ore via heating and chemical reduction by natural gas, as opposed to in a blast furnace. Direct reduced iron is typically more expensive than reducing iron ore in a blast furnace, but at the same time it is richer in iron than pig iron. For a mini-mill, DRI serves as a feedstock, allowing the mini-mill to use lower grades of scrap steel for the remaining portion of the steel production inputs.

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