Question

Name the places having manufacturing centres of Iron and Steel in USA.

Answer 1

Answer:

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• PITTSBURGH. It is an important steel city of the United States of America.

• Nucor ranked as America's largest steel producer.

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Answer 2

Answer:

There are two main types of steel mills. The traditional large integrated steel mill, which reduces metallic iron from ore (iron oxide) and makes it into pig iron and steel, has been steadily declining in importance for decades in the US. The second type, the mini-mill, or specialty steel mill, which produces new steel products by melting steel scrap, now produces the majority of steel in the US.

Integrated steel mills

In 2017, there were 9 operating integrated steel mills in the United States (plus one idled), down from 13 in 2000. Integrated mills produced 31% of the steel produced in the US.

In an integrated steel mill, iron ore is reduced to metallic iron. In the US, this is done in blast furnaces and since 2014 again using direct reduced iron furnaces in Nucor's plant in Louisiana as well as another DRI plant (producing a compactified version of DRI called hot briquetted iron HBI in Texas by Voestalpine. Some of the iron from the blast furnaces is converted to steel; today this is done in basic oxygen furnaces. Iron ore, coke, and flux are fed into the blast furnace and heated. The coke reduces the iron oxide in the ore to metallic iron, and the molten mass separates into slag and iron. Some of the iron from the blast furnace is cooled, and marketed as pig iron; the rest flows into basic oxygen furnaces, where it is converted into steel. Iron and steel scrap may be added to both the blast furnace and the basic iron furnace.

US Steel operates a number of integrated steel mills, including the Gary Works in Gary, Indiana. They also operate the Edgar Thomson Works, which is the iron- and steel-making unit of the Mon Valley Works, which includes three other related plants. The Company operates the Great Lakes Works,[4] and Granite City Works.[5]

ArcelorMittal operates three integrated steel mills: in East Chicago, Indiana, Burns Harbor, Indiana, and Cleveland, Ohio.[6]

AK Steel Corporation has three integrated steel mills, one in Middletown, Ohio, Dearborn, Michigan and the other in Ashland, Kentucky. At present, the Ashland Works is temporarily idled.

Explanation:

IRON

The industry produced 29 million metric tons of pig iron and 88 million tons of steel. Most iron and steel in the United States is now made from iron and steel scrap, rather than iron ore. The United States is also a major importer of iron and steel, as well as iron and steel products.

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