Old 03-03-2010, 11:31 AM
Join Date: Mar 2010
Location: San Jose, CA
Posts: 2
Question Fire bricks Spec

hi all,
I found those Muddox fire bricks at my local masonry shop:
Alumina: 27.1%
Silica: 62.9%
Density: 2.073 g/cm^3 (roughly 129.4 pounds/cubic foot)

Am I good to go?
Just for my information, are those considered as Low or Medium duty?

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Old 09-27-2011, 08:56 PM
Join Date: Sep 2011
Location: Hollister
Posts: 3
Default Re: Fire bricks Spec

Do you get a response how did the Muddox bricks work on your oven?
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Old 09-28-2011, 09:44 PM
Join Date: Mar 2010
Location: San Jose, CA
Posts: 2
Default Re: Fire bricks Spec

The Muddox bricks are good. I used them for the oven.
I have been using the oven for about 6 months and no issue so far.
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Old 05-23-2012, 07:37 PM
Join Date: Jul 2011
Location: Shanghai
Posts: 3
Default Re: Fire bricks Spec

it is good to use fire brick with that specifications for your oven. it is close to high duty
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Old 05-24-2012, 06:40 PM
Join Date: Jun 2008
Location: Melbourne Australia
Posts: 399
Default Re: Fire bricks Spec

High duty is 45%>, these are low to medium duty as per the alumina content. They are high in Silica content so I hope you used a mask when cutting.
Great for the use in ovens.
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alumina, density, duty, fire brick, silica

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