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2300°F IFB Insulating Fire Bricks - 9" x 4.5" x 2.5"

Buy full boxes of 12 for the best pricing!

An economical Lightweight IFB (Insulated Fire Brick) 9" x 4.5" x 2.5" rated to 2300°F Fahrenheit that can be installed in either a backing or a hot-fired application. Easy to cut.

This is a very popular and well-priced option when making heat-treating or tempering ovens.  Channels can be easily carved into the bricks for heating coils.

If you need a higher temperature-rated insulating brick, see our 2600°F IFBs or 2800°F Insulating Fire BricksThe low iron content is also suitable for reducing and high CO environments.

These bricks are much more porous, and not as mechanically strong as our high-density bricks. However, they can be stacked dry or set using SAIRSET refractory mortar.  Though they have much less of a heat sink than denser bricks, these can still be coated with ITC 100 HT and benefit from the added efficiency of ITC 100's heat reflection properties.

Available as:

  • Single bricks - $10.42 ea
  • Box of 12 bricks - $9.77 ea brick x 12

Sold Individually or in Boxes of 12.

Note - If this location runs out of stock, purchases may take two days to ship to allow for stock transfer.

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