Fireclay Insulating Bricks for Hot Surfaces or Backing Heat-Insulating Layers

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1.Fire Clay Insulating Brick Description

The Al2O3 content of light clay refractory bricks is 30% to 46%. It is a lightweight refractory product, which is mainly composed of clay or light clinker. Usually, it can be made combustible by chemical or foam method, and finally, form a multi-hollow structure. The bulk density of commonly used lightweight clay bricks is 0.75~1.20g/cm3, the compressive strength is 2.0~5.9Mpa, and the thermal conductivity is 0.221~0.442W/m.k (1350°C).

Item	1.0	2.0	3.0
Al2O3 (%)	38--40	38--40	38--40
Fe2O3(%)	4	44	1.2
SiO2(%)	55	55	55
Bulk Density (g/cm3)	0.6	0.8	1.0
Apparent Porosity %	70	60	55
Cold Crushing Strength(Mpa) ≥	2.0	2.5	3.0
Thermal Conductivity(W/m.k)(1000°C)	0.33	0.60	0.45
Max Service Temperature (°C)	1200	1280	1300

2.Fire Clay Insulating Brick Features

1. Good heat resistance and high-temperature resistance.

2. The thermal expansion is small and the peeling resistance is good.

3. Good corrosion resistance.

4. Good sintering resistance.

3.Fire Clay Insulating Brick Applications

Lightweight clay thermal insulation bricks are corrosive thermal insulation materials and will not come into contact with molten materials. They are mainly used in various industrial furnaces.

4.Fire Clay Insulating Brick Packing

We make every effort to provide our customers with the most optimal design solutions to reduce the overall cost of our Fireclay Insulating Bricks for Hot Surfaces or Backing Heat-Insulating Layers. Our products are mature, deeply loved by the majority of users, our market demand is huge, the prospect is broad. Facing the new historical development period, our company will continue to provide users with more and better products and services, and continue to meet the needs of users. We sincerely welcome new and old customers at home and abroad to come, negotiate, guide and develop together.

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