Reaction To Fire
There is no proof for the self-ignition of solid or liquid aluminium in fire [1]. Experience and many research results have shown that under normal fire conditions, aluminium will not ignite.
In pure oxygen and with an atmospheric pressure of 1013 mbar, the inflammation point of aluminium is above 1000 °C and thus higher than that of the other common metals: 930 °C for steel and 900 °C for zinc. The order of the inflammation points does not depend on the order of the melting point [2]. For some metals, the ignition point is below the melting point and vice versa (Table G.7.2).
It is difficult to ignite aluminium because of its natural oxide film that blocks the reaction of the metal with air or oxygen, since it insulates the liquid metal in a more or less
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