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In the era of commercial wrought iron, blooms were slag-riddled iron castings poured in a bloomery before being worked into wrought iron. In the era of commercial steel, blooms are intermediate-stage pieces of steel produced by a first pass of rolling (in a blooming mill) that works the ingots down to a smaller cross-sectional area, but still greater than 36 in 2 (230 cm 2). [1]
Nitronic alloys were developed by Armco Steel. The first of these alloys, Nitronic 40, was introduced in 1961. [1] Since 2022, the trademark has been owned by Cleveland-Cliffs Steel Corp., successor to AK Steel. [2] Electralloy is the licensed producer in North America for a wide range of Nitronic products. [3]
This page was last edited on 15 July 2023, at 20:39 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
In 1971, Armco Steel purchased Kansas City-based engineering firm Burns & McDonnell; however, in 1985, employees of Burns & McDonnell secured a loan to buy the company from Armco. [9] In 1978, Armco Steel was renamed Armco, Inc. It moved its headquarters to New Jersey in 1985. In 1982, a recession threatened the U.S. steel industry. [10 ...
The list ranks steelmakers by volume of steel production in millions of tons over time and includes all steelmakers with production over 10 million in 2021. The World Steel Association features a list from its members every year. Due to mergers, year-to-year figures for some producers are not comparable. Not all steel is the same. Some steel is ...
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Pages in category "Steel companies of the United States" The following 67 pages are in this category, out of 67 total. This list may not reflect recent changes. A.
Weston wrote on his journals, which he began writing in the fall of 1922 while in a trip to visit his sister Mary Seaman in Ohio, about how the industrial landscape of Armco impressed and inspired him, in particular the “great plant and giant stacks of the American Rolling Mill Company”. [2]