Industrial Furnace Refractory Fire Bricks Yellow Insulating Firebrick

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Industrial Furnace Refractory Fire Bricks , Yellow Insulating Firebrick

 

 

Features

 

1. High cold crushing strength 
2. High refractoriness under the load 
3. Good creep resistance 

 

 

Andalusute Brick has high cold crushing strength,high refractoriness under load, high thermal stability,good creep resistance and thermal shock resistance,It is alternative product for high aluminum bricks, used in the professional of the key parts of the furnaces.

 
 

Applications

Andalusite bricks are mainly used in the cooling wall of blast furnace, chemical and ceramic industry, the door of coke oven, or as the lining and checker of hot blast furnaces.
 

 

Physical properties and chemical composition

 

Andalusite bricks

 

Product

Index

HZ-55

HZ-62

HZ-65

Chemical

analysis

Al2O3%

≥55

≥62

≥65

Fe2O3 %

≤1.2

≤1.2

≤1.2

Physical properties

Bulk density (g/cm3)

≥2.45

≥2.5

≥2.5

Apparent porosity (%)

≤17

≤17

≤17

Cold crushing strength (Mpa)

≥60

≥60

≥60

Refractoriness

under load(°C)

≥1600

≥1650

≥1680

Thermal shock resistance

Good

Better

Better

Thermal expansion coefficient(1000°C)

≤ 0.55

≤ 0.55

≤ 0.55

Creep resistance

20-50h,(%)

1350°C

<0.2

1400°C

<0.2

1450°C

<0.2