ferro chrome grinding mill

ferro chrome low carbon > atems

ferro chrome low carbon > atems

Application : Chromium is one of the most versatile and widely used alloying elements in steel. It imparts corrosion and oxidation resistance, is a mild harden ability agent, improves wear resistance and promotes the retention of useful strength levels at elevated temperatures. Chromium is an irreplaceable constituent in all stainless steels; in fact, over 70% of all chromium used in steelmaking is found in the many stainless grades. Next in tonnage consumption of chromium are the constructional alloy steels, most of which contain less than 3% Cr. Tool steels, super alloys and other specialty metals, though often high in chromium content, are produced in smaller quantities and therefore rank lower in over-all chromium application. Chromium is most commonly supplied as ferrochrome.

The principal impurities in ferrochrome are carbon and silicon. As is often the case, carbon level is most important in determining the price differential between the various ferrochrome grades. Low carbon ferrochrome is now added mostly for final chemistry adjustments in the production of stainless steel. Nitrogen-bearing low carbon ferrochrome provides a simple means of making a nitrogen addition to chromium bearing steels, particularly conventionally melted stainless grades. These grades of stainless can also be produced economically with elemental N2 in the AOD.

ferro chrome high carbon > atems

ferro chrome high carbon > atems

Application : Chromium is one of the most versatile and widely used alloying elements in steel. It imparts corrosion and oxidation resistance, is a mild harden ability agent, improves wear resistance and promotes the retention of useful strength levels at elevated temperatures. Chromium is an irreplaceable constituent in all stainless steels; in fact, over 70% of all chromium used in steelmaking is found in the many stainless grades. Next in tonnage consumption of chromium are the constructional alloy steels, most of which contain less than 3% Cr. Tool steels, super alloys and other specialty metals, though often high in chromium content, are produced in smaller quantities and therefore rank lower in over-all chromium application. Chromium is most commonly supplied as ferrochrome.

As is often the case, carbon level is most important in determining the price differential between the various ferrochrome grades. The widespread shift toward duplex refining practices such as the AOD, CLU, etc., has led to greatly increased use of high-carbon ferrochrome. High carbon ferrochrome, or at least the grades commonly designated charge chrome, remains the most widely used chromium addition for the production of stainless and alloy steels. High carbon ferrochrome, 6-8% C grade, 65-70% chromium, for many years remained the standard of the industry.

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