I would recommend using a brick with a 2800 f temp rating.
Ceramic fire brick forge.
The bricks typically line the inside of a kiln furnace fireplace etc and serve as great insulators making heat loss minimal and energy use.
So which fire bricks should you.
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The answer to this question has a few answers.
As such they are extremely useful to hobbyist blacksmiths and machinists who wish to build their own forge or foundry.
A firebrick or refractory brick is a ceramic brick made from refractory material that can withstand high temperatures.
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Firebricks are used to line the inner surfaces of furnaces kilns and forges.
Can i line a forge with firebrick.
They are often used in a number of industrial applications such as furnaces kilns foundries incinerators and reactors.
Kiln bricks also referred to as fire bricks or refractory bricks are made from ceramic refractory material that can withstand extremely high temperatures such as those achieved in kiln firings.
Yes you can line a forge with soft insulating firebrick.
I would not recommend using hard dense firebrick to line your forge.