Silica Fire Brick for coke oven

Silica refractorychecker brick for coke oven,Silica brick refractories are acidic, with good acid resistance capacity slag erosion, load softening temperature up to 1640 ~ 1670 ℃, long-term use at high volume relatively stable.

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Brand: Dezhen
Code: 690220

Product Description

Silica brick features:

The brick is shaped by high pressure and sintered at high temperature. with excellent high-temperature physical performance and chemical erosion resistance.
The technical specification:

item	Silica brick for coke oven
item	floor & wall brick	other brick
SiO2 ≥	94.5%
Fe2O3 ≤	1.5%
Al2O3 ≤	1.5%
CaO ≤	2.5%
cold crushing strength ≥	40Mpa	35Mpa
apparent porosity ≤	22%	24%
true density ≤	2.33g/cm3	2.34g/cm3
thermal expansion 1000ºC≤	1.28%	1.30%
residual quartz ≤	1.0%
refractoriness under load Ta ≥	1650ºC

Refractory brick silica brick high alumina brick