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2. Composite construction - Wikipedia

   en.wikipedia.org/wiki/Composite_construction

   A composite steel deck combines the tensile strength of steel with the compressive strength of concrete to improve design efficiency and reduce the material necessary to cover a given area. Additionally, composite steel decks supported by composite steel joists can span greater distances between supporting elements and have reduced live load ...

3. Iron and steel industry in the United States - Wikipedia

   en.wikipedia.org/wiki/Iron_and_steel_industry_in...

   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. Employment as of 2014 was 149,000 people employed in iron and steel mills, and 69,000 in foundries.

4. Corrugated galvanised iron - Wikipedia

   en.wikipedia.org/wiki/Corrugated_galvanised_iron

   Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...

5. Nucor - Wikipedia

   en.wikipedia.org/wiki/Nucor

   To supply its mills, Nucor uses electric arc furnaces and continuous casting to melt scrap steel as opposed to blast furnaces to melt iron. In 2023, the company produced and sold approximately 18.5 million tons of steel and recycled 18.4 million tons of scrap. [1] None of Nucor's mills are unionized and the corporate culture is opposed to trade ...

6. U.S. Steel CEO appeals to Trump after Biden blocks deal with ...

   www.aol.com/u-steel-ceo-appeals-trump-171850374.html

   The chief executive of U.S. Steel appealed directly to President-elect Donald Trump to take a second look at a Japanese company’s $15 billion deal to buy the American steelmaker.

7. Ironworker - Wikipedia

   en.wikipedia.org/wiki/Ironworker

   Structural ironworkers also erect joist girders, bar joists, and trusses, and also install metal decking. When one bullpin is inadequate, the Ratliff Technique [ citation needed ] may be utilized in order to force a bullpin to align itself straight with a hole, by driving another bullpin or driftpin between a steel member, and the first bullpin.