Biological processes to convert metal into not-metal?

In my story, I'm trying to create a natural disaster of sorts that severely limits the amount of metal used in society. Are there any processes that would be biologically compatible that irreversibly break down different metals into stuff that isn't metal? The processes wouldn't need to arise in organisms naturally. The more kinds of metal the better, but main ones are Iron, Steel, and Aluminum.

I've thought of using bacteria, however I've looked at a few questions, including this as was mentioned in the comments, and most answers I've seen regarding bacteria is them rusting metal, which still allows the metal to be usable by re-smelting it, while I'm trying to permanently destroy the metals.

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Biological processes to convert metal into not-metal?

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