Iron Alloy
Primary iron alloys containing major proportions of elements like manganese, silicon, molybdenum or chromium act as essential additives in the production of stainless and specialty steels. Industrial use of ferro alloys allows a metallurgist to introduce specific chemical properties such as deoxidation or increased hardness into a molten batch. These materials are categorized by the carbon content and the concentration of the alloying element.
Smelting Process
High temperature reduction in submerged arc furnaces typically generates these concentrated metal mixtures from ores and carbonaceous reducents. The production of ferro alloys consumes vast amounts of electrical energy which makes the location of smelting plants dependent on low cost power grids. Global trade flows for these commodities mirror the geography of heavy steel manufacturing.
Efficiency in the furnace determines the final purity and market price of the grade. Smelters must balance the input of raw materials and energy to maintain the desired silicon or manganese levels in the final product.
Material Handling
Transportation occurs in bulk or large bags to prevent contamination during sea transit. Proper storage of ferro alloys requires a dry environment to avoid the formation of hazardous gases when certain grades contact moisture. Inventory management tracks the precise percentage of the active element to ensure accurate dosing in the ladle.