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In Oregon, OSM also operates a structural tubing facility, the only producer in the Northwest, this plant was sold in 2015. [19] In Colorado, OSM's Rocky Mountain Steel subsidiary operates three production facilities. One facility makes rails for railroads, one rods and bars for construction, and the third plant manufactures seamless pipes.
The Columbia Steel Company was organized in 1909 with main offices at 503 Market Street, San Francisco. When formed the company had one plant in Portland, Oregon, established in 1903 and a bigger plant in Pittsburg, California, established in 1909–1910.
ASTM A500 is a standard specification published by the ASTM for cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes. It is commonly specified in the US for hollow structural sections, but the more stringent CSA G40.21 is preferred in Canada. Another related standard is ASTM A501, which is a ...
A441 – structural shapes and plates (Superseded by A572) A572 – structural shapes and plates. A618 – structural pipe and tubing. A992 – Possible applications are W or S I-Beams. A913 – Quenched and Self Tempered (QST) W shapes. A270 – structural shapes and plates.
At that time, the company was the largest producer of structural steel tubing in North America with 23 plants and employing 3,500 people. [4] But LTV was drowning in debt, and at the end of 2000, LTV, along with 48 subsidiaries, including Copperweld, filed voluntary petitions for relief under Chapter 11 of the U.S. Bankruptcy Code.
A hollow structural section (HSS) is a type of metal profile with a hollow cross section. The term is used predominantly in the United States, or other countries which follow US construction or engineering terminology. HSS members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available.
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