ive got a slab of that brick in my forge, and its held up just fine so far.....
I know it says its good for 2000, but ive personally seen these things take over 3300 with no ill effect.
granted that was platinum fabrication, and casting work, and not inside a forge.
so far that brick is holding up better than the lining of the forge.
*need to reline my big one and get it ready for winter when ill likely be using it more.
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