What rusts faster aluminium or carbon steel?

Answer 1

Since aluminum cannot rust ('rust' is a specific term for the corrosion of iron), carbon steel will be faster.

Althpough an oxide coat forms on both aluminum and steel, the oxides are of a different nature. The iron "rust" is a pervious coating which allows water to be held against the metal and oxygen to enter and react with the wet metal, aluminum oxide is an impervious layer which protects the metal from further decomposition,

Answer 2

Iron will rust faster in salt water than anything else, including steel or copper. Copper never rusts. It literally takes a really long time for copper to rust. Steel will rust relatively quickly, but not as fast as iron.

Answer 3

Carbon steel rusts faster than aluminum. Aluminum forms a protective oxide layer on its surface that helps prevent corrosion, while carbon steel is more prone to rusting when exposed to moisture and oxygen.

Answer 4

Change this from "rust" (rust is ferric oxide) to "oxidize," and there's no contest: Aluminum is so reactive it forms a layer of aluminum oxide the instant it's exposed to air.