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Steel grades to classify various steels by their composition and physical properties have been developed by a number of standards organizations.
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels. These efforts were similar ...
The main differences in composition, when compared with austenitic stainless steel is that duplex steels have a higher chromium content, 20–28%; higher molybdenum, up to 5%; lower nickel, up to 9% and 0.05–0.50% nitrogen. Both the low nickel content and the high strength (enabling thinner sections to be used) give significant cost benefits.
The $14.9 billion sale of iconic steelmaker US Steel to Japan’s Nippon Steel ends months of speculation over industry consolidation in a move criticized by union workers, but seen by one analyst ...
ASTM A992 steel is a structural steel alloy often used in the US for steel wide-flange and I beams. Like other carbon steels, the density of ASTM A992 steel is approximately 7850 kg/m 3 (0.2836 lb/in 3). ASTM A992 steel has the following minimum mechanical properties, according to ASTM specification A992/A992M.
2. Application of ASTM A53 Standard Pipes Steel Pipes ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging. 3.
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).
The term long products may include hot rolled bar, cold rolled or drawn bar, rebar, railway rails, wire, rope (stranded wire), woven cloth of steel wire, shapes (sections) such as U, I, or H sections, and may also include ingots from continuous casting, including blooms and billets. Fabricated structural units, such bridge sections are also ...