What is an alloy which is a major for preventing rusting of iron?

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Solution

The most popular rust resistant alloys are stainless steel and weathering steel.

Stainless steel contains a minimum of 11% chromium.

This allows the formation of a protective film of chromium oxide which

acts as a shield against rust. Corrosion resistance can be further

enhanced with the addition of nickel.

Weathering steel contains up to 21% of alloying elements such as chromium,

copper, nickel and phosphorous. The alloys form a protective layer which

reduces the corrosion rate with time.

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