Best-selling Silica Bricks For Coke Oven

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silica bricks for coke oven passed ISO certified
1.good resistance to acid slag and good heat conductivity
2.RUL 1620

 best-selling silica bricks for coke oven passed ISO certified .it is made of quartz stone material,the content od Sio2 is above 93%,it has good resistance to acid glad and good heat conductivity,and the refractoriness is 1690-1710.C,RUL is beyond 1620.C

items

Furance bottom/

furancre wall

rests

allow deviation

SiO2 %

≥94.5

-

Al2O3 %

≤1.2

-

Fe2O3 %

≤1.2

-

CaO %

≤2.5

-

0.2MPa RUL (°C)

1650

-10

True density (g/cm3)

≤2.33

≤2.34

+0.01

Residual quarlz%

≤1.0

-

AP%

≤22

≤24

+1

CCS(MPa)

≥40

≥35

10%

PLC(1450°C *2h) %

0~0.2

-

Thermal expansion(1000°C)  %

≤1.28

≤1.30

+0.03




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