Hi. I was wondering if anyone could help me understand the pros and cons of Alumina content in casting refractory. I have read FB page on firebrick and how they recommend medium grade firebrick with 30% Al. I have also read the higher content can cause the oven to get too hot for bread. If I am just making pizza would the higher content be better? I also see that in the FB precast they use 80% Al precast. Is Al in precast differ from Al in firebrick? Is there any issue with the 80% Al in the precast and using firebrick with 30% on the floors? Maybe I am reading too deep now just let me know to stop over thinking.
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