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ferro alloys

Ferroalloy refers to various alloys of iron with a high proportion of one or more other elements such as manganese, aluminium, or silicon.[1] They are used in the production of steels and alloys.[2][3] The alloy impart distinctive qualities to steel and cast iron or serve important functions during production and are, therefore, closely associated with the iron and steel industry, the leading consumer of ferroalloys. The leading ferroalloy-producing countries in 2008 were Ukraine, China, South Africa and Russia, which accounted for 77% of the world production. World production of bulk chromium, manganese and silicon ferroalloys was estimated as 29.1 million tonnes (Mt) in 2008, a 3% decrease compared with 2007.[2]

The main ferroalloys are:

FeAl  C ferroaluminum

FeB  C ferroboron  C 12 C20% of boron, max. 3% of silicon, max. 2% aluminium, max. 1% of carbon

FeCe  C ferrocerium

FeCr  C ferrochromium

FeMg  C ferromagnesium

FeMn  C ferromanganese

FeMo  C ferromolybdenum  C min. 60% Mo, max. 1% Si, max. 0.5% Cu

FeNb  C ferroniobium, also called ferrocolumbium

FeNi  C ferronickel (and nickel pig iron)

FeP  C ferrophosphorus[fr]

FeSi  C ferrosilicon  C 15 C90% Si

FeSiMg  C ferrosilicon magnesium (with Mg 4 to 25%), also called nodulizer

FeTi  C ferrotitanium  C 10..30 C65..75% Ti, max. 5 C6.5% Al, max. 1 C4% Si

FeU  C ferrouranium

FeV  C ferrovanadium

FeW  C ferrotungsten

SiMn - Silicomanganese