Old 07-02-2011, 01:15 PM
Join Date: Jul 2011
Location: WA
Posts: 1
Question Fire brick identification from markings

I can get a great deal on some radius fire bricks, but I don't know what they are or how useful they might be. Most are about 9 inches long and 2 5/8s to 3 inches thick and almost 4 inches wide.

They have the following markings:
Mo Rex 48-57
AZTEX 108-117
AZTEX 36-45
JB 108-117
JBF 86-105

Does anyone know what these markings mean?

Thanks Larry
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Old 08-24-2011, 03:31 AM
Join Date: Jun 2011
Location: bethlehem, Pa
Posts: 40
Default Re: Fire brick identification from markings

I just bought same size bricks - looks like they are going to be perfect for dome construction. I was able to contact manufacturer to find out alumina content - didn't want heavy duty bricks, couldn't find any info on your bricks in quick search - good luck
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Old 08-25-2011, 09:17 AM
Join Date: Oct 2007
Location: Chicago
Posts: 26
Default Re: Fire brick identification from markings

I'm not sure of the names, but the numbers refer to the ID and OD that can be formed from these brick
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