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How does cast iron respond to rust?

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Anonymous

12y ago
Updated: 8/18/2019

Rust is the oxidation of the cast iron. Oxygen in the air combines with the base metal to create the rust. The rust protects the metal underneath. Cast iron is not "reacting" to rust. It is participating in FORMING the rust.

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Very well as the rust actually protects the base metal

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Wiki User

12y ago

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