I'm designing a block for creating turbulence inside a traditional furnace. I would like to know about a material which is economical and can be put into operation for more than 2 years.


Most industrial furnaces are lined with fire bricks to ensure long operating times at high temperatures. Depending on the properties of the bricks, particularly the grade of the fire clay, temperatures up to 1640 $\small\sf{^o}$C can be tolerated.

Fire clay contains two major constituents- silica and alumina, of which, the silica percentage varies from 60 to 70% and alumina varies from 25 to 35%

  • $\begingroup$ If the op wants to create turbulence will fire clay stand the friction? $\endgroup$ – Solar Mike Mar 18 '20 at 6:27
  • 1
    $\begingroup$ @SolarMike presumably we are talking about turbulence in gas not liquid, at those temperatures. $\endgroup$ – alephzero Mar 18 '20 at 21:24

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