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Electrical steel ( E-steel, lamination steel, silicon electrical steel, silicon steel, relay steel, transformer steel) is speciality steel used in the cores of electromagnetic devices such as motors, generators, and transformers because it reduces power loss. It is an iron alloy with silicon as the main additive element (instead of carbon).
Prices of hydrogen produced by distributed steam methane reforming, as predicted by H2A Production Model from United States Department of Energy, assuming price of natural gas of US$3/MMBtu (US$10/MWh; US$0.10/m 3). Does not include cost of storage and distribution. 1: 2 H (D) Deuterium: 0.0001667: 13 400: 2.23: 2020: CIL
Moore's law. Moore's law is the observation that the number of transistors in an integrated circuit (IC) doubles about every two years. Moore's law is an observation and projection of a historical trend. Rather than a law of physics, it is an empirical relationship linked to gains from experience in production.
The $14.9 billion sale of iconic steelmaker US Steel ( X) to Japan’s Nippon Steel ends months of speculation over industry consolidation in a move criticized by union workers, but seen by one ...
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.
The biggest steel producing country is currently China, which accounted for 54% of world steel production in 2022. [1] In 2020, despite the COVID-19 pandemic, China became the first country to produce over one billion tons of steel. [2] In 2008, 2009, 2015 and 2016 output fell in the majority of steel-producing countries as a result of the ...
Ferrosilicon is a basis for manufacture of prealloys like magnesium ferrosilicon (MgFeSi), used for production of ductile iron. MgFeSi contains 3–42% magnesium and small amounts of rare-earth metals. Ferrosilicon is also important as an additive to cast irons for controlling the initial content of silicon.
Chromium–vanadium steel. Chromium–vanadium steel (symbol Cr-V or CrV; 6000-series SAE steel grades, often marketed as "chrome vanadium" [1]) is a group of steel alloys incorporating carbon (0.50%), manganese (0.70–0.90%), silicon (0.30%), chromium (0.80–1.10%), and vanadium (0.18%). Some forms can be used as high-speed steel. [2]