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41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred to as chromoly steel (common variant stylings include chrome-moly, cro-moly, CrMo, CRMO, CR-MOLY, and similar).
4140/4142: 41CrMo4 42CrMo4 42CrMoS4 43CrMo4: 708M40 708A42 709M40 En19 En19C: 41CrMo4 ... API Tubing and Casing: H40 None None or black band at the manufacturer's ...
Cold-formed welded and seamless high-strength, low-alloy structural tubing with improved atmospheric corrosion resistance A847 50 70 1.40 19 Zinc-5% aluminum alloy-coated steel sheet by the hot-dip process A875 SS Gr. 33 33 45 1.36 20 Gr. 37 37 52 1.41 18 Gr. 40 40 55 1.38 16 50 Class 1 50 65 1.30 12 50 Class 3 50 70 1.40 12 HSLAS Type A 50 50 60
The Youngstown Sheet and Tube Company, based in Youngstown, Ohio, was an American steel manufacturer. Officially, the company was created on November 23, 1900, when Articles of Incorporation of the Youngstown Iron Sheet and Tube Company were filed with the Ohio Secretary of State at Columbus. In 1905 the word "Iron" was dropped from the company ...
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.
The company was established in 1942 and is based in Chelyabinsk. [3] It is involved in the production and distribution of steel pipes, with its main products being large diameter welded pipes, small diameter hot-worked seamless pipes (108–169 mm diameter) and cold-worked seamless pipes (89–426 mm diameter). [3]
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