Iron burning in atmosphere of pure oxygen

[maddog4261]

where do u get pure oxygen?

[infotubeification]

@maddog4261 probably electrolysis or large 02 tanks they sell.

[LechuCzechu]

I wonder what is the heat of combustion for iron? Do all transitional metals are combustible (if a metal exhibits rust/oxide layer does it mean it will burn in oxygen?)?