Ferro Aluminium

FERRO ALUMINIUM

Ferro Aluminium is an alloy which is formed by combining iron and aluminium. Ferro Aluminium is primarily used as a de-oxidation agent for steel, as well as for moulding in combination with scrap copper and carbon steel. For example, when Ferro Aluminium alloy is melted and poured into moulds containing scrap, the mixture becomes very fluid and flows into the interstices between spatially arranged pieces of scrap. So, while the matrix alloy is actually a 65% aluminium alloy, it has the properties of a 40% alloy in terms of density.

PROPERTIES OF FERRO ALUMINIUM

Ferro Aluminium as an additive to the production process of amorphous metals will impart several desirable properties upon the resulting alloy. One of the primary benefits of adding Ferro Aluminium to an alloy is to increase the new alloy’s sensitivity to heat. When a low melting point is needed, or when a high degree of combustibility is needed, more Ferro Aluminium is added. Additionally, Ferro Aluminium as Ferro Aluminium Thermite is an agent, that when ignited and mixed, can give off super extreme amounts of heat. Although this reactant is stable at room temperature, it will burn via an extremely intense exothermic reaction.

PRODUCTION OF FERRO ALUMINIUM

A large portion of the global Ferro Aluminium supply is manufactured in countries where electric power is cheap and plentiful: Australia, China, Russia, USA and Canada. The most basic definition of the Ferro aluminium manufacturing process would be that the aluminium is produced from synthetic cryolite or bauxite and then transformed into Al2O3 through electrolysis (the Bayer Process). The resulting oxide is then mixed with iron oxide. The Ferro Aluminium is then purified, or can be packaged as is. Ferro Aluminium comes in several grades, where the content of pure Ferro Aluminium is between 30% and 75%. Ferro Aluminium is usually supplied in powder, granules or pieces.

USES OF FERRO ALUMINIUM

The largest practical applications of Ferro Aluminium are its use in ferrous alloys, and depending on the aluminium content range, use is best suited for deoxidisation, welding electrode manufacture and hard limited facing applications. In addition, Ferro Aluminium is used in Ferro Aluminium Thermite that is used in turn to cut or to weld metal. Ferro Thermite is made from 75% iron oxide plus 25% aluminium oxide. The iron oxide of Thermite is not rust (Fe2O3) but iron scale (Fe3O4) oxide. The chemicals are thoroughly mixed together and then compressed into a suitable container. A first-fire mix is then used to ignite the mixture. This reaction is used in welding applications, like the one used to join rail tracks in place. Thermites that employ Ferro Aluminium are pyrotechnic initiators, such as fireworks.

Chemical Analysis

Standard Material %
Al 35-40%
Cu 0.1-1%
Si 0.15-1%
Mn 0.5% max
C 0.1% max

Packing:

  • 1mt big bags

Sizing:

  • Standard pyramids