Ferroalloy used in iron and steel metallurgy and foundry industry, with the modern industry for the variety of steel varieties requirements, ferroalloy varieties are also expanding, with the development of modern materials technology, the content of harmful impurities in steel has entered the PPM level, the corresponding ferroalloy in the content of harmful impurities is also getting lower, ferroalloy varieties,
Quality also into a diversified, high-quality stage, Ferroalloy variety, classification methods are also many, generally classified according to the following methods.
According to the classification of the main alloy elements in Ferroalloy, it can be divided into single ferroalloy, composite ferroalloy, nitride products, oxide clumps and so on. An ferroalloy containing only one alloying element is called a single ferroalloy.
Mainly Ferrosilicon, Ferromanganese, ferrochrome, tungsten iron, molybdenum iron, titanium iron, vanadium iron, industrial silicon, metal manganese and so on. Alloys containing two or more alloy elements are called composite ferroalloys.
Its main varieties are silicon manganese alloy, silicon calcium alloy, silicon manganese aluminum alloy, silicon calcium aluminum alloy, rare earth magnesium silicon, tantalum niobium and so on. Ferromanganese nitride, chromium nitride and other nitride products.
The Ferromanganese or chromium iron powder, often used solid-state nitriding method, in the high temperature conditions of well nitriding treatment to produce nitride products, mainly used as an additive for nitrogen production in steelmaking, can improve the strength of steel and other mechanical properties, refine grain, fixed austenite Oxide clumps, some oxides can be added directly to the molten steel as alloying agents because they are easy to be reduced by iron. This can reduce the ferroalloy production process and reduce production costs.
such as molybdenum oxide clumps, etc.
According to the carbon content of Ferroalloy classification, there are high carbon, medium carbon, low carbon, micro-carbon, ultra-micro-carbon and other varieties. According to the production method classification, there are blast furnace ferroalloy, electric furnace ferroalloy, furnace external method (metal thermal method) Ferroalloy, vacuum solid-state reduction ferroalloy, converter ferroalloy, electrolytic Ferroalloy and so on. Blast furnace Ferroalloy, including blast furnace high carbon ferromanganese, low silicon manganese alloy, low ferrosilicon, etc.; electric furnace ferroalloy, including too high carbon ferromanganese, too high carbon ferrochrome, ferrosilicon, manganese silicon alloy, silicon chromium alloy, silicon aluminum alloy, silicon calcium alloy, phosphorus iron, medium and low carbon and micro-carbon ferrochrome, medium and low carbon ferromanganese, refined vanadium iron, etc., external furnace (metal thermal method) Ferroalloy, including metal chromium, Molybdenum iron, titanium iron, boron iron, vanadium iron, zirconium iron, high vanadium iron, etc., vacuum solid-state reduction ferroalloy, including carbon-containing very low micro-carbon ferrochrome (C content less than 0.03%), nitrogen ferroalloy; converter ferroalloy, including carbon ferrochrome in the converter, converter low carbon ferrochrome, carbon ferromanganese in the converter, etc. electrolytic Ferroalloy, including electrolytic metal chromium,
Electrolytic manganese metal and so on.
Quality also into a diversified, high-quality stage, Ferroalloy variety, classification methods are also many, generally classified according to the following methods.
According to the classification of the main alloy elements in Ferroalloy, it can be divided into single ferroalloy, composite ferroalloy, nitride products, oxide clumps and so on. An ferroalloy containing only one alloying element is called a single ferroalloy.
Mainly Ferrosilicon, Ferromanganese, ferrochrome, tungsten iron, molybdenum iron, titanium iron, vanadium iron, industrial silicon, metal manganese and so on. Alloys containing two or more alloy elements are called composite ferroalloys.
Its main varieties are silicon manganese alloy, silicon calcium alloy, silicon manganese aluminum alloy, silicon calcium aluminum alloy, rare earth magnesium silicon, tantalum niobium and so on. Ferromanganese nitride, chromium nitride and other nitride products.
The Ferromanganese or chromium iron powder, often used solid-state nitriding method, in the high temperature conditions of well nitriding treatment to produce nitride products, mainly used as an additive for nitrogen production in steelmaking, can improve the strength of steel and other mechanical properties, refine grain, fixed austenite Oxide clumps, some oxides can be added directly to the molten steel as alloying agents because they are easy to be reduced by iron. This can reduce the ferroalloy production process and reduce production costs.
such as molybdenum oxide clumps, etc.
According to the carbon content of Ferroalloy classification, there are high carbon, medium carbon, low carbon, micro-carbon, ultra-micro-carbon and other varieties. According to the production method classification, there are blast furnace ferroalloy, electric furnace ferroalloy, furnace external method (metal thermal method) Ferroalloy, vacuum solid-state reduction ferroalloy, converter ferroalloy, electrolytic Ferroalloy and so on. Blast furnace Ferroalloy, including blast furnace high carbon ferromanganese, low silicon manganese alloy, low ferrosilicon, etc.; electric furnace ferroalloy, including too high carbon ferromanganese, too high carbon ferrochrome, ferrosilicon, manganese silicon alloy, silicon chromium alloy, silicon aluminum alloy, silicon calcium alloy, phosphorus iron, medium and low carbon and micro-carbon ferrochrome, medium and low carbon ferromanganese, refined vanadium iron, etc., external furnace (metal thermal method) Ferroalloy, including metal chromium, Molybdenum iron, titanium iron, boron iron, vanadium iron, zirconium iron, high vanadium iron, etc., vacuum solid-state reduction ferroalloy, including carbon-containing very low micro-carbon ferrochrome (C content less than 0.03%), nitrogen ferroalloy; converter ferroalloy, including carbon ferrochrome in the converter, converter low carbon ferrochrome, carbon ferromanganese in the converter, etc. electrolytic Ferroalloy, including electrolytic metal chromium,
Electrolytic manganese metal and so on.
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