My AMSEC BF6030 has some impressive fire ratings and yet, I am not completely relying on it. Note, the safe within a safe.
My documents are in a fire safe, key attached, within my AMSEC safe. This is something I read about in a
http://www.6mmbr.com/gunsafes.html Gun Safe Buyer's Guide. I noted also in the buyer's guide that the picture they used of a safe that survived a house fire was in fact an AMSEC safe.