Brown Fused Alumina

About Brown Fused Alumina

Having quality oriented approach, we are able to offer the best grade Brown Fused Alumina. This product is produced by smelting quality-assured calcined bauxite with the aid of our modern electric arc furnaces. Finds wide applications in blasting and surface hardening, provided product is widely demanded for grinding metals of high tensile strength. Available in various packaging options, provided Brown Fused Alumina can be bought from us at economical prices.

Key Points:

• High strength
• Suitable for manufacturing refractory products
• Sharp abrasive in nature
  
• Safe to use

Process of Production

Brown Fused Alumina is produced by the smelting of Calcined Bauxite in an electric arc furnace at temperatures greater than 2000^oC. A slow solidification process follows the fusion, to yield blocky crystals. The melting help in removing residual sulphur and carbon, Strict control over Titania levels during the fusion process ensures optimum toughness of the grains.

Then the cooled crude is further crushed, cleaned of magnetic impurities in high intensity magnetic separators and classified into narrow size fractions to suit the end use. Dedicated lines produce products for different applications.

Application :

Brown Fused Alumina is a tough, sharp abrasives which is highly suitable for grinding metals of high tensile strength. Its thermal properties make it an excellent material for use in the manufacture of refractory products. This material is also used in other applications like blasting and surface hardening.

Technical Specification :

Grade	Specification	Chemical Composition
		AI2O3	SiO2	Fe2O3	TiO2	CaO
Brick Grade	0-1,1-3,3-5mm -8+16,-16+30,-30+60 mesh, Fines	> 95.2	< 1.0	< 0.3	< 0.3	< 0.4
Castable Grade	0-1,1-3,3-5mm -8+16,-16+30,-30+60 mesh, Fines	> 95	< 1.5	< 0.3	< 0.3	< 0.4
Vitrified Grade	F12-F220	> 95.5	< 1.0	< 0.3	2.2-3.0	< 0.4
Resin & Blasting Grade	F12-F220	> 95	< 1.5	< 0.3	< 0.3	< 0.4
Micro Grade	P240-P1200	> 92-95	< 1.0-1.8	< 0.3-0.5	< 2.2-45
	F240-F1000	> 88-95	< 1.0-2.5	< 0.3-0.5	< 2.2-6.5
Melting Point		2050oC
Refractoriness		1980oC
True Density		3.90 ming/cm3
Mohs Hardness		9.00min

Brick / Vitrified Grade BFA : Is produced using special grade Bauxite in controlled fusion parameters. This grade is suitable for Bricks / Vitrified products preventing Cracks/Fissures, Holes and Black spots in the end product.

Versatile Industrial Applications

Brown Fused Aluminas high hardness (Mohs 9) and exceptional strength make it indispensable in abrasive tool manufacturing, sandblasting, grinding, refractory linings, non-slip flooring, and wear-resistant surfaces. Its thermal and dimensional stability ensures reliable performance in demanding environments, supporting a variety of industrial processes across India and beyond.


Exceptional Physical and Chemical Properties

This material combines a high alumina content (minimum 95%) with minimal impurities such as SiO2 (<1%) and Fe2O3 (0.4% max), resulting in outstanding durability, low porosity, and high thermal conductivity. Its bulk density ranges from 1.6 to 2.1 g/cm, and it maintains integrity at melting points up to 2050C, making it suitable for basic refractory applications.


Flexible Grain Sizing and Packaging

Clients can select from standard grain sizes (F8F220, P12P220) or request custom options to suit specific requirements. Packaging is available in 25 kg bags, 1MT jumbo bags, and bespoke formats, ensuring convenient handling and storage for any industrial-scale operation.