• Email Us
    habby@ht-refractory.com
  • Mob/WhatsApp
    +86 17886663539
  • Alumina Bubble Brick

Alumina Bubble Brick

Catalog: Alumina Bubble Brick | 2022-03-26

Good Raw Material
Strict Quality Control
Strict Lab Test
Fast Delivery Time
100% Factory Price
Credit Assurance
Satifisfied Service

Product Details

 Alumina Bubble Bricks
alumina bubble brick
Alumina bubble bricks are made of alumina bubble balls and alumina powder as the main raw materials, combined with other binders, and fired at a high temperature of 1750 degrees. It is a kind of ultra-high temperature resistance and energy-saving insulation refractory material. Alumina bubble bricks not only have light density which can optimize the structure to reduce the weight of the furnace body, but also have low thermal conductivity, which has a good thermal insulation effect. It can be directly built on the lining of the high-temperature furnace that is in contact with the flame, and can also be used to manufacture high-temperature furnace tubes, trays, protective covers, etc. The performance of alumina bubble bricks is generally determined by the chemical composition. Except for the production process ,some factors such as particle ratio, molding pressure and firing temperature are also very important to the quality of the bricks. 
As a professional alumina bubble bricks manufacturer, we have exported different typess alumina bubble refractory bricks to more than 30 countries.  Please kindly read the following more information and make Inquiry

Scope of application:
Alumina bubble bricks are mainly used as the lining of high-temperature industrial kilns below 1800°C, such as petroleum, chemical, electronics, ceramics, refractory materials and other industries. It plays a pivotal role in various industries.
Advantage:

High tempreture resistance more than 1750°C 

Good thermal stability at high temperature and long service life

Optimize the furnace structure and reduce the weight of the furnace body

Save the quantity of other insulation refractory material used in the furnace 


Save energy consumption and improve the thermal efficiency

Technical Data:

ItemsUltra Purity Bubble Alumina BrickBubble Alumina Brick

HAB-99SAB-99SAB-90SAB-85
Max Service temperature 1800180018001750
Al2O3  %99.3999085
SiO2 %0.15 0.3 9 14
Fe2O3 %0.1 0.2 0.2 0.2

Bulk density (g/cm3)

1.5~1.81.5~1.81.4~1.91.4~1.9
Cold compression strength (Mpa)12151818
Refractoriness under load (0.1Mpa,0.6%)1700170017001700
Reheating linear change (1600x8h) %-0.25-0.25±0.2±0.3

Room temp to 1300℃    Thermal expansion coefficient

8.68.68.07.8

Thermal Conductivity W/(m.k) 800℃

0.750.750.60.55