Redon Alumina Bubble Clay Insulation Fire Brick Fireproof Refractory Brick

• Customization: Available
• Classification: High-Alumina
• Feature: Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Light Weight, Low Thermal Conductivity
• Model NO.: Alumina Bubble Brick
• Production Process: Sintering Method
• Refractoriness (℃): 1770< Refractoriness< 2000
• Shape: Brick
• Sio2: 15%~45%
• Al2O3: 45%~80%
• Density: 2.25-2.65g/cm3
• Thermal Linear Expansion@1000deg: 0.6%
• Apparent Porosity: 22-23%
• Fe2o3: 1.8-2.0%
• Transport Package: Cardboard Box or Other
• Specification: 230*114*64/230*114*76mm
• Trademark: Redonwool
• Origin: China
• HS Code: 69022000
• Production Capacity: 20000 Kilogram/Kilograms Per Day
• Package Size: 10.00cm * 10.00cm * 5.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Alumina hollow ball brick is made of alumina hollow ball and aluminum oxide powder as the main raw materials, combined with other bonding agents, after 1750 degrees of high temperature fired. It is a kind of energy-saving insulation material of ultra-high temperature material. Alumina hollow ball as the main body, can be made into various shapes of products, the highest use temperature of 1800ºC, the product mechanical strength is high, several times of the general light products, and the bulk density is only half of corundum products. It has been widely used in high temperature and ultra-high temperature kilns such as gasifier in petrochemical industry, carbon black industrial reactor and induction furnace in metallurgical industry, and has achieved very satisfactory energy-saving effect.

 

Detailed Photos

 

 

Characteristic & Application

Product features:
_{1. high use temperature:}
It can reach more than 1750 degrees and has good thermal stability. Small change rate of heavy burn wire, longer use.
2. optimize the structure, reduce the weight of the furnace body:
Now the high-temperature resistant materials are heavy bricks with a volume density of 2.6-3.0g/cm, while alumina hollow ball bricks are only 1.1-1.5g /cm, the same cubic meter volume, the use of alumina hollow ball bricks can reduce the weight of 1.1-1.9 tons.
3. Save materials:
To achieve the same use temperature, such as the use of heavy brick and alumina hollow brick price is comparable, but also need considerable insulation layer refractory. If the use of alumina hollow ball bricks, per cubic meter can save 1.1-1.9 tons of heavy brick use, but also save 80% of the refractory insulation material.
4. Save energy:
Alumina hollow ball has obvious thermal insulation characteristics, low thermal conductivity, can play a good thermal insulation effect, reduce heat dissipation, improve thermal efficiency, so as to save energy. The energy saving effect can reach more than 30%.

Typical applications:
Widely used in metallurgy, building materials, light industry, chemical industry, ceramics, glass, electronics and other industries. The shape size, physical and chemical index and service life of the products have reached or exceeded the level of similar products at home and abroad.
 

Product Parameters

Index	90 Alumina Bubble Brick	95 Alumina Bubble Brick	98 Alumina Bubble Brick
AI2O3(%)≥	90	95	98.5
SiO2(%)≤	8	4	0.5
Fe2O3(%)≤	0.3	0.2	0.2
Bulk density (g/cm³)	1.4~1.7	1.4~1.7	1.5~1.8
Compressive strength at room temperature (Mpa)≥	20	18	15
Heavy burn line change % (1600ºCx3h)±	0.3	0.3	0.3
Thermal conductivity W/m.k(800ºC)≤	1.2	1.5	1.8
Softening temperature under load(ºC)(0.1Mpa,0.6%)≥	1680	1700	1700
Maximum service temperature (ºC)	1700	1750	1800

 

Company Profile

FAQ

Q1 : What's the MOQ. Can I get a sample of free?

A1: MOQ, according to the actual situation. We can offer a sample of free. Please, friendly bear the shipping cost.

Q2 : When can i get the quotation?

A2: We can give you reply with quotation quickly if you kindly send the inquiry with following factors: working temperature, maximum working temperature, bulk density, dimension (length*width*thickness), and quantity.

Q3 :What's the MOQ of trial order?

A3: No limit, we can offer the best suggestions and solutions according to your condition

Q4 : What is the HS code?

A4: The HS code is 68061010.

Welcome your inquiry and expect to provide satisfactory products and services for you.