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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.
Availability:
Quantity:
  • Dezhen

  • 690220

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
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
65


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