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Calcined Bauxite Aggregate For Castable Refractory

Calcined bauxite is an artificial aggregate with higher strength and hardness than natural bauxite.It is an indispensable material in making refractory castable.Mixed with high alumina cement, powder according to a certain of proportion, high alumina aggregates can be made into refractory concrete with high strength.
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  • 3-5mm

  • SEPPE BAUXITE

  • 25083000

Introduction

SEPPE 85% Al₂O₃ Calcined Bauxite Aggregate is a high-performance refractory raw material produced by calcining superior grade bauxite in rotary kilns at temperatures up to 1600°C. This thermal treatment removes moisture and organic impurities, resulting in a dense, hard aggregate with exceptional refractoriness and mechanical strength. It is the preferred aggregate choice for manufacturing high-alumina refractory castables, low-cement castables, and gunning mixes used in steel, cement, and glass industries.


Technical Specifications

Chemical Analysis(%)

Al₂O₃

75-90

SiO₂

6-18

Fe₂O₃

0.5-2.5

TiO₂

2-3

Physical Data

Particle Shape

Angular

Hardness Mohs

9.0

Specific Gravity g/cm3

3.70

Bulk Density g/cm³

2.90-3.25




Primary Refractory Applications

  • High-Alumina Refractory Castables: Used as primary aggregate in dense castables for ladle linings, tundish linings, and furnace hearths.


  • Low Cement Castables (LCC): Ideal for applications requiring high hot strength and low porosity, such as cement kiln preheaters and cooler zones.


  • Gunning Mixes: Suitable for rapid repair and maintenance of high-temperature furnace linings in steel and foundry operations.


  • Refractory Bricks & Shapes: Used as raw material for pressing high-alumina bricks and precast shapes.


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Available Particle Sizes

  • 0-1 mm — Fine aggregate for dense matrix packing

  • 1-3 mm — Medium aggregate for balanced workability

  • 3-5 mm — Coarse aggregate for high-strength castables

  • 5-8 mm — Extra coarse for specialized applications

  • 200 mesh / 325 mesh — Fine powder for matrix formulation



Packing & Delivery

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DOWNLOAD FOR MORE INFORMATION  Roatry Kiln Bauxite.pdf


Company  Information

 

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                      Total Revenue(%)

                                North America

                               40.00%

                              Domestic Market

                               21.00%

                                    Mid East

                               10.00%

                                Southeast Asia

                               10.00%

                                     Aferica 

                                9.00%

                                 Eastern Asia

                                5.00%

                                  South Asia

                                3.00%

                                South America

                                2.00%