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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]
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AK Steel answered the complaint and filed counterclaims (AK Steel Corp. v. AEIF, Case No. 1:05-CV-531) on November 2, 2005. [39] On March 1, 2006, AK Steel began a lockout of about 2,700 workers at the Middletown Works plant in Middletown, Ohio. [40] By the next day, the mill was operated by 1,800 salaried and temporary replacement workers.
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]
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]
Wrought iron is an iron alloy with a very low carbon content (less than 0.05%) in contrast to that of cast iron (2.1% to 4.5%). It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which give it a wood-like "grain" that is visible when it is etched, rusted, or bent to failure.