Dense fused alumina

Product Name

Dense Fused Alumina

Brand

Gama

Al₂O₃

> 99.0%

Fe₂O₃

< 0.15%

SiO₂

< 0.6%

< 0.1%

Bulk Density

> 3.9 g/cm³

Melting Point

2250°C

Sizes

0-1mm, 1-3mm, 3-5mm, 200 mesh, 325 mesh

Applications

Widely used in iron and steel metallurgy, petrochemicals, building materials, ceramics, and other industries, mainly as:

Refractory ramming mix for blast furnace iron troughs
Castables, ramming mixes, and prefabricated parts
Continuous casting components (long nozzles, slide gates, seating bricks)
Porous bricks, stopper rods, and various shaped products
High-grade corundum bricks and premium refractory aggregates

Compared with traditional lining materials, dense fused alumina can withstand higher temperatures and stronger erosion, significantly extending service life and reducing overall costs.

Advantages of Dense Fused Alumina

Composition and Structure: Main crystal phase α-Al₂O₃ content >96%, apparent porosity <4%, high bulk density, light gray color
Physical and Chemical Properties: Excellent wear resistance, slag resistance, volume stability, and thermal shock resistance; outstanding acid and alkali resistance; stable performance at high temperatures
Thermal Performance: High thermal conductivity
Manufacturing Process: High-purity alumina is melted with reducing agents in an electric arc furnace, followed by controlled cooling to ensure high purity and low porosity.

Gama Dense Fused Alumina — The premium choice for heavy-duty high-temperature refractory applications