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7 Holes Fireclay Refractory Checker Bricks

  • Dezhen
  • 690220

Characteristics of this series products are as follow:
The brick is made from sintered special grade clay, pressed by high pressure and sintered at high temperature, with excellent spalling resistance, alkali,sodium,sulfur,chlorine and alkalic salt corrosion. Low thermal conductivity, a better and ideal choice for steel industry.

The technical specification :

AL2O3 min 41%
Fe2O3 max1.80%
refractoriness under load min1450ºC
apparent porosity max14%
cold crushing strength min60Mpa
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