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Ferrochrome or ferrochromium (FeCr) is a type of ferroalloy, that is, an alloy of chromium and iron, generally containing 50 to 70% chromium by weight. [ 1 ] [ 2 ] Ferrochrome is produced by electric arc carbothermic reduction of chromite .
Chrome mineral that is used in melting power plants, is supplied from the mines of the country, mainly from the chrome-holding basin of Bulqize. The final and only product of the Ferro Chrome factory in Burrel is ferro-chrome with high carbon content (C= 6–8 %), whereas the chrome in ferro-chrome is Cr=60-65 % (base 63%). [11]
The Ferro Alloys produced are High Carbon Ferro Chrome, Low Carbon Ferro Chrome, Silicochrome, Silicomanganese, and Magnesium Ferrosilicon, Ferromanganese etc., These alloys are tapped from electric arc furnaces in the molten state. They are prepared to the required size from 25 mm to 150 mm and transported to the various steel companies.
Production of ferrochrome is observed to emit pollutants into the air such as nitrogen oxides, carbon oxides and sulfur oxides, as well as dust particulates with a high concentration of heavy metals such as chromium, zinc, lead, nickel and cadmium. During high temperature smelting of chromite ore to produce Ferrochrome, Cr-III
Inconel 925: Inconel 925 is a nonstabilized austenitic stainless steel with low carbon content. [74] Inconel 939: Gamma prime strengthened to increase weldability; In age hardening or precipitation strengthening varieties, alloying additions of aluminum and titanium combine with nickel to form the intermetallic compound Ni 3 (Ti,Al) or gamma ...
Chrome steel is the name for any one of a class of non-stainless steels such as AISI 52100, SUJ2, 100Cr6, [1] En31, 100C6, and DIN 5401 which are used for applications such as bearings, tools, drills and utensils. Like stainless steel, chrome steels contain chromium, but do not have the corrosion-resistant properties of stainless steel. [2]
Pearlite-reduced steels: Low carbon content steels which lead to little or no pearlite, but rather a very fine grain ferrite matrix. It is strengthened by precipitation hardening. Acicular ferrite steels: These steels are characterized by a very fine high strength acicular ferrite structure, a very low carbon content, and good hardenability.
Chromium–vanadium steel (symbol Cr-V or CrV; 6000-series SAE steel grades, often marketed as "Boss AA" [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%).