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How does the corrosion resistance of aluminum compare to that of tin?
This post was last edited by qugd on 2019-2-25 09:38. It’s not possible to give an accurate answer to such a question. The corrosion resistance of materials is always relative to the corrosive medium; talking about corrosion resistance without considering that medium is basically nonsense. Taking aluminum and tin as examples, hydrochloric acid is highly corrosive to aluminum, while its corrosivity on tin is somewhat lower; but this does not mean that aluminum is not resistant to certain acids. This is because concentrated sulfuric acid and concentrated nitric acid can be stored in aluminum containers, as aluminum becomes passivated in the presence of strongly oxidizing acids, whereas tin does not.