Silica Refractory Brick

Short Description:

High quality silica a brick is made of silicon raw material, the content of SiO2 is above 91%. And the content of Al2O3 is below 1.0%.


Product Detail

Product Tags

Silica Refractory Brick5
Silica Refractory Brick6

Application
They are widely used for hot blast furnace, coke oven, and glass furnace. The products can be made according to customers' requirement.

Advantage
1) Silicon oxide is above 91%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C

Silica Bricks Specification

Item

SR-96

SR-96B

SR-95

SR-94

SiO2 % 

≥96

≥96

≥95

≥94

Fe2O3 %

≤0.8

≤0.7

≤1.5

≤1.5

Al2O3+TiO2+R2O

≤0.5

≤0.7

≤1.0

≤1.2

Refractoriness °C 

1710

1710

1710

1710

Apparent Porosity %

≤21

≤21

≤21

≤22

Bulk Density g/cm3 

≥1.8

≥1.8

≥1.8

≥1.8

True Density g/cm3 

≤2.34

≤2.34

≤2.38

≤2.38

Cold Crushing Strength Mpa

≥35

≥35

≥29.4

≥24.5

0.2MPa RUL T0.6°C 

≥1680

≥1680

≥1650

≥1630

PLC (%) 1500°C×2h

0~+0.3

0~+0.3

0~+0.3

0~+0.3

20-1000°C Thermal Expansion10-6/°C 

1.25

1.25

1.25

1.25

Thermal Conductivity(W/MK)1000°C 

1.44

1.44

1.74

1.74


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