Silicomanganese

silicomanganese

[¦sil·ə·kō′maŋ·gə‚nēs]
(metallurgy)
A crude alloy made up of 65-70% manganese, 16-25% silicon, and 1-2.5% carbon; used in the manufacture of low-carbon steel.

Silicomanganese

 

a ferroalloy composed chiefly of silicon and manganese; it is smelted by carbon reduction in ore heat-treating furnaces. Silicomanganese with 10–26 percent Si (the remainder is Mn, Fe, and impurities) is obtained from manganese ore, manganese slag, and quartzite and is used as a deoxidizer and alloying additive in the smelting of steel, as well as in the smelting of ferromanganese with reduced carbon content by the silicothermic process. Silicomanganese with 28-30 percent Si, for which specially prepared high-manganese low-phosphorous slag serves as raw material, is used in the production of metallic manganese.

References in periodicals archive ?
The location is currently used as a depository of a large amount of production residue of processing of ferromanganese and silicomanganese.
The acquisition of the Glencore plants in Dunkirk, France and Mo I Rana Norway represents an opportunity for Ferroglobe to increase its size in the manganese alloys industry, producing over half a m tons of sales of ferromanganese and silicomanganese.
Afarak Group Oyj (HEL:AFAGR), a miner and processor of minerals, announced on Thursday that Afarak Mogale has successfully completed the transition of second silicomanganese furnace to ferrochrome.
The $300m plant will have production capacity of 70,000 tonnes a year of silicomanganese and 110,000 tonnes a year of fer- romanganese.
EMI, a French-owned company, refines Mn ore into either refined ferromanganese or silicomanganese, which are used primarily in steel production.
The process design was complicated by the need to blend the lower manganese-content Indian ores with other higher grade manganese ore from South Africa or Australia, in a two-step process route required to produce 78% high-carbon ferromanganese and silicomanganese with 65% manganese.
Manganese (Mn) is used in the occupational setting of a number of major industries but is principally mined, smelted and mixed with other metals in alloys like ferromanganese or silicomanganese.
6 mm dia silicomanganese steel rods heat treated to proper specifications.
The Danieli installations for vacuum-oxygen decarburization are designed for wide range of steel grades (carbon, stainless, austenite, ferrite corrosion-resistant, silicomanganese, chromium, chromium-silicon, chromium-vanadium, chromium-molybdenum, siliceous, free-cutting, chromium-nickel, bearing steels and steels with low content of carbon).
Manganese ore is converted into value-added ferromanganese or silicomanganese.
By utilizing multiple furnaces, which operate around-the-clock, the company produces approximately 105,000 metric tons of silicomanganese annually at its 190 plus acre facility.
On February 16, 2016, the Department of Commerce (Commerce) announced its affirmative final determination in the antidumping duty (AD) investigation of imports of silicomanganese from Australia.