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Fire Bricks

Now days they are called heavy and dense Firebricks but old masters still call them fire clay bricks just because they are made of simple fireclay (which actually is the most ordinary mud.) Fire clay can be easily located out in the nature but it must containing the right refractory properties, suitable content ratio of silica and alumina. Some shops call these bricks fireplace bricks. They are used for instance for building cooking chamber in wood fired ovens, for creating fireplaces, all sorts of fire boxes and wood heaters’ lining, linings in a small or the hugest industrial furnaces, you name it. firebrick detailed photo Fire clay bricks are very heavy/dense having low porosity and even on reheatings they can last for very/very long time.

Some may confuse them with insulating lightweight firebricks, those are used in different applications. Dense firebricks can be cut only with diamond wheel attached to high speed handheld angle grinders, on an ordinary building brick saw or sliding drop saw for cutting bricks. Fire bricks can be chopped in half easily by using brick chisel and a couple of hits with a heavier hammer. It is fun and quick but may you want to achieve precise nice cuts hire a trade machine or buy yourself at least small size grinder. Before cutting soak the brick in water by dipping it in a bucket of water or in a wheelbarrow if you had too many. Leave the bricks in that water for 5 minutes minimum. Firebricks dipped in water before cutting with diamond wheel. The cutting diamond wheel will last you for a long time if the firebricks are cut wet plus you won’t breath in any dust, and of course cutting gets a lot easier and faster!

Fire Bricks : Available types & there properties -

  • STD Fire Bricks of all grade ( IS-8, IS-6, IS-7 )
  • High Alumina bricks : 50 %, 60 %, 70 %, 80% alumina, off all sizes.
  • Insulation Bricks : Hot face – cold face & special purpose.
  • Light weight insulation shapes, Hysil blocks ( Calcium silicate ), Ceramic Fire boards, Mineral wool rigid blocks.