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FUSED DENSE CORUNDUM

A kind of high-purity refractory raw material formed by high-purity alumina and reducing agent after being melted in an electric arc furnace at a high temperature of more than 2300 according to a certain ratio.

The main crystal phase is α-Al2O3, the color is light gray, has a high melting point, a relatively high bulk density and very low porosity, and has excellent wear resistance, slag resistance, volume stability at high temperature, it’s the best refractory materials in the corundum series of refractory materials.



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The fused dense corundum is one of the first-choice raw materials for the production of high-performance unshaped and shaped refractory materials, and is widely used in industries such as steel, cement, ceramics, petrochemicals, etc. It is an ideal raw material for making blast furnace iron trough castables, ladle castables, ramming materials, preforms and other unshaped refractory materials, as well as three continuous casting pieces, ventilating bricks, nozzle block bricks and other shaped products. It is also an excellent material for making steel-making long nozzles, skateboards and various corundum bricks.

AS REFRACTORY RAW MATERIAL
Chemical CompositionGrit > 0.1mmTypical ValueFine Powder ≤ 0.1mmTypical Value
Al2O3%≥99.299.69999.4
SiO2%≤0.50.40.70.5
Fe2O3%≤0.10.030.10.05
TiO2%≤0.10.050.10.05
CaO%≤
MgO%≤
Na2O%≤
C%≤0.080.120.1

Apparent Porosity %≤

20.820.8
Bulk Density g/cm3≥3.93.93

True Density g/cm3≥3.963.993.963.98

DENSE CORUMDUM


ALL KINDS OF SPECIFICATION

VARIOUS CUSTOMIZATION SUPPORTED


APPLICATION

POWDER

325 Mesh


30+ YEARS QUALITY ASSURANCE

2300 ℃ HIGH TEMPRATURE MELTING


YUFA GROUP Refractory Experts Around You

CHEMICAL & PHYSICAL INDEX

PRODUCTS


GRIT

1-0 mm

POWDER

325 Mesh


GRIT 

8-5 mm

1-0 mm




GRIT

3-1 mm


GRIT

8-5 mm

0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 mm,  5-3 mm, 8-5 mm, 10-5 mm, 25-10 mm, 100 mesh, 200 mesh, 325 mesh ......


Other spec are available upon request.