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Ferroalloys-LUMP

Ferroalloys-LUMP

Ferroalloy refers to various alloys of iron with a high proportion of one or more other elements, Mn, Si, Cr, Mo, Ni, Ca, …for example. It is used in the production of steels and alloys as a raw material.Ferroalloys are produced by adding chemical elements into molten metal, usually during steelmaking. They 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. - Ferro alloys types:

FERRO MOLYBDENUM


It is normaly used as alloying or additive during the steel manufacturing. Molybdenum 0.2-5%, in stainless steels, increases hardenability and strength, particular at high temperatures. Often used in chromium-nickel austenitic steels, molybdenum protects against pitting corrosion caused by chlorides and sulphur chemicals

FERRO MANGANESE


Manganese used as de-oxidising agent during the steel making and as a alloying agent. Addition of 0.25-13% of Mn, Increases strength at high temperatures by eliminating the formation of iron sulfides. Manganese also improves hardenability, ductility and wear resistance. Like nickel, manganese is an austenite forming element and can be used in the AISI 200 Series of Austenitic stainless steels as a substitute for nickel.

FERRO TITANIUM


During the steel making it used as cleanser of impurities some time metallurgist call it scavenger of liquid steel. It Improves both strength and corrosion resistance while limiting austenite grain size. At 0.25-0.60 percent titanium content, carbon combines with the titanium, allowing chromium to remain at grain boundaries and resist oxidization.

FERRO -SILICO -CALCIUM (CASI)


Calcium silicon (casi) is used as de-oxidizer and de-sulferizer in the production of high grade steel. Ca and silicon both have strong affinity for oxygen, especially calcium have strong chemical affinity not only for oxygen but also for Sulphur and nitrogen. The alloy is also used for modification of non-metallic inclusions. Ca-Si is used to control the shape, size and distribution of oxides and sulphide inclusions, improving the fluidity, machinability, ductility & impact properties of steel Products

FERRO BORON


Addition of boron in a quantity of up to 0.01% to austenitic steels also improves their high-temperature strength. Boron steels are used as high-quality, heat-treatable constructional steels, steels for carburization and cold forming steels such as steels for screws. The addition of 5 to 50 ppm B to ferritic steels containing 14 to 18% Cr may improve the surface quality of stainless strips by avoiding errors, such as scale, ribbing a roping, and ridging, which otherwise frequently occur in strip production.
An outstanding feature of boron steels is the improvement in hardenability produced by the addition of even a minute quantity of boron

FERRO VANADIUM


Ferro Vanadium is an alloy which is formed by combining iron and vanadium. Ferro Vanadium is a universal hardener, strengthener and anti-corrosive additive for steels like high-strength low-alloy (HSLA) steel, tool steels, as well as other ferrous-based products. Ferro Vanadium, as an additive to the production process of ferrous metals, will impart several desirable properties upon the resulting new compound. One of the primary benefits of adding Ferro Vanadium to an alloy is its stability against alkalis as well as sulphuric and hydrochloric acids. Additionally, the adding of Ferro Vanadium to an alloy can result in a steel product less susceptible to corrosion of any type. Ferro Vanadium is also used to reduce weight while simultaneously increasing the tensile strength of the material.
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