Metallurgical Product Description

Ferro Alloy is a steelmaking deoxidizer, the most widely used are silicomanganese, ferromanganese, and ferrosilicon. Strong deoxidizers are aluminum (aluminum iron), silicon calcium, silicon zirconium, etc. (see steel deoxidation reaction).

Ferroalloys containing two or more alloying elements are called composite ferroalloys. The use of such ferroalloys can add deoxidizing or alloying elements at the same time, which is beneficial to the steelmaking process and can comprehensively utilize symbiotic ore resources more economically and rationally. Commonly used are: manganese silicon, silicon calcium, silicon zirconium, silicon manganese aluminum, silicon manganese calcium, and rare earth ferrosilicon.

Product Parameters

Ferro Silicon Manganese

Ferromolybdenum

Ferrotitanium

Ferro Vanadium

Ferro Tungsten

Basic classification

There are many varieties of ferroalloys, and there are many classification methods. They are generally classified according to the following methods:

(1) According to the classification of the main elements in iron alloys, there are mainly a series of iron alloys such as silicon, manganese, chromium, vanadium, titanium, tungsten, and molybdenum.

(2) According to the classification of carbon content in ferroalloys, there are high carbon, medium carbon, low carbon, micro carbon, ultra-micro carbon, and other varieties.

(3) Multi-component iron alloys containing two or more alloying elements. The main varieties are silicon-aluminum alloys, silicon-calcium alloys, manganese-silicon-aluminum alloys, silicon-calcium aluminum alloys, silicon-barium-calcium alloys, etc.

(4) Classification according to production methods: blast furnace ferroalloys, electric furnace ferroalloys, out-of-furnace ferroalloys (metal thermal process) ferroalloys, vacuum solid-state reduction ferroalloys, electrolytic ferroalloys, in addition to special ferroalloys such as oxide briquettes and heating ferroalloys.

Ferrosilicon, ferromanganese, silicon manganese, ferrochrome, ferrotungsten, ferrovanadium, ferronickel, ferromolybdenum, ferrotitanium, rare earth magnesium silicon, rare earth ferrosilicon, calcium silicon alloy, silicon barium alloy, silicon aluminum alloy, tantalum niobium, Iron phosphorus, iron boron, etc.

Product Advantages

The main element of iron alloy generally has a higher melting point, or its oxide is difficult to reduce, making it difficult to smelt pure metal. If it is combined with iron, it is easier to reduce and smelt. Iron alloys are used in steel smelting, and the iron contained in them is not only harmless but also beneficial because it is easily soluble in molten steel. Therefore, most of the deoxidation and alloy additions during steelmaking are in the form of ferroalloys. Ferrous alloys are generally very brittle and cannot be used as metallic materials.

Manufacture And Use

In the steelmaking industry, it is used as a deoxidizer and alloying agent.

Used as an inoculant and spheroidizing agent in the cast iron industry.

Used as a reducing agent in ferroalloy production.

Applications

Commonly used varieties used as alloy additives include ferromanganese, ferrochromium, ferrosilicon, ferrotungsten, ferromolybdenum, ferrovanadium, ferrotitanium, ferronickel, niobium (tantalum) Ferro, rare earth ferroalloys, ferroboron, ferrophosphorus, etc.

According to the needs of steelmaking, various ferroalloys are specified in many grades according to the content of alloying elements or the carbon content, and the impurity content is strictly limited. Iron alloys containing two or more alloying elements are called composite iron alloys.

Using this type of iron alloy, deoxidizing or alloying elements can be added at the same time, which is beneficial to the steelmaking process and can comprehensively utilize symbiotic ore resources more economically and rationally. Commonly used ones are manganese silicon, calcium silicon, silicon zirconium, silicon manganese aluminum, silicon manganese calcium, and rare earth ferrosilicon.

Pure metal additives used in steelmaking include aluminum, titanium, nickel, metallic silicon, metallic manganese, metallic chromium, etc.

Certain easily reducible oxides, such as MoO and NiO, are also used to replace iron alloys. In addition, there are iron nitride alloys, such as nitrided ferrochromium, ferromanganese, etc., as well as heating iron alloys mixed with exothermic agents.