Ferro-Alloy Production: Part One


Ferro-alloys can basically by split into two groups including bulk ferro-alloys (large quantities) and special ferro-alloys (typically smaller quantities but special importance).
The principle ferro-alloys are those of chromium, manganese and silicon and in the case of chromium a range of advantages can be gained including excellent corrosion resistance.

Ferro-alloys are master alloys containing iron and one or more non-ferrous metals as alloying elements. The ferro-alloys are usually classified in two groups: bulk ferro-alloys (produced in large quantities in electric arc furnaces), and special ferroalloys (produced in smaller quantities, but with growing importance). Bulk ferro-alloys are used in steel making and steel or iron foundries exclusively, while the use of special ferroalloys is far more varied. In total, about 90 % of the ferroalloys produced are used in the steel industry.

As mentioned above, ferro-alloys can be divided into two main categories: bulk alloys and special alloys. Bulk ferro-alloys (ferro-chrome, ferro-silicon, ferro-manganese, silico-manganese and ferro-nickel).

Compared to bulk ferro-alloys, the production rate of special ferro-alloys is rather small. Special ferro-alloys (ferro-vanadium, ferro-molybdenum, ferro-tungsten, ferro-titanium, ferro-boron, and ferro-niobium) are mostly used in the iron, steel and cast-iron industries. Besides this, some special ferro-alloys are increasingly also used in other industry sectors, e.g. aluminum and chemical industries.

The ferro-alloy industry is associated with the iron and steel industries, its largest customers. Ferro-alloys impart distinctive qualities to steel and cast iron and serve important functions during iron and steel production cycles. The principal ferroalloys are those of chromium, manganese, and silicon.

Chromium provides corrosion resistance to stainless steels. Manganese is essential to counteract the harmful effects of sulfur in the production of virtually all steels and cast iron. Silicon is used primarily for deoxidation in steel and as an alloying agent in cast iron. Boron, cobalt, columbium, copper, molybdenum, nickel, phosphorus, titanium, tungsten, vanadium, zirconium, and the rare earths impart specific characteristics and are usually added as ferro-alloys.

A variety of furnace types, including submerged electric arc furnaces, exothermic (metallothermic) reaction furnaces, and electrolytic cells can be used to produce ferroalloys. Furnace descriptions and their ferroalloy products are given in Table 1.

Table 1: Ferro-alloy processes and respective product groups

Legend for Table 1:
a - Process by which metal is smelted in a refractory-lined cup-shaped steel shell by submerged graphite electrodes.
b - Process by which molten charge material is reduced, in exothermic reaction, by addition of silicon, aluminum, or a combination of the 2.
c - Process by which simple ions of a metal, usually chromium or manganese in an electrolyte, are plated on cathodes by direct low-voltage current.
d - Process by which carbon is removed from solid-state high-carbon ferrochrome within vacuum furnaces maintained at temperatures near melting point of alloy.
e - Process that converts electrical energy into heat, without electrodes, to melt metal charges in a cup or drum-shaped vessel.


1. J.Kuenen: Ferroalloys production, 2.C.2 Ferroalloys production, Version EMEP/EEA emission inventory guidebook 2009, p.1-7;

2. Processes to produce ferro-alloys, Chapter 8, MR/GC/EIPPCB/NFM_Draft_3 July 2014, p.847-961, Accessed 05-2016;

3. Ferroalloy Production, 10/86, Metallurgical Industry, 12.4-3: 12.4-20; Accessed 05-2016

기술 자료 검색

검색할 어구를 입력하십시오:

검색 범위



화학 조성을 Total Materia 데이터베이스에서 검색하는 것은 매우 쉽습니다.

몇 초 내로 데이터베이스 내 175,000개 이상의 재질에서 유용한 화학 조성 데이터를 검색하는 것이 가능합니다.

신속 검색에 검색할 재질명을 입력합니다. 원하신다면 국가/규격을 지정하신 후 검색 버튼을 클릭합니다.

Total Materia 데이터베이스에서 검색된 관심 재질의 목록이 즉시 생성됩니다.
관심 재질을 클릭합니다.

소그룹 페이지에서, 선택된 재질의 화학 조성 링크를 클릭하여 데이터를 검토합니다. 화학 조성 데이터 기록의 개수는 링크 옆 괄호 안에 표시됩니다.

화학 조성 데이터는 참조를 위해 선택한 모든 재질 정보와 함께 표시됩니다.

Total Materia 데이터베이스를 사용해 보실 수 있는 기회가 있습니다. 저희는 Total Materia 무료 체험을 통해 150,000명 이상의 사용자가 이용하고 있는 커뮤니티로 귀하를 초대합니다.