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Does cast iron rust

Updated: 10/6/2023
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12y ago

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Yes it does rust.

Ductile iron has better corrosion resistance than gray cast iron. Some alloy cast iron has better corrosion reisistance. However, any cast iron will rust without any surface treatment.

There are many types of surface treatments that can pretect iron castings from rust, such as primer painting, surface painting, electophoretic coating and zink galvanizing etc. As for the detailed information about surface coatings of metal castings, please refer to the links below "Surface Coating of Iron Castings ".

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12y ago
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14y ago

You may want to ask some other people but I am pretty sure you dip it in hydrochloric aced(HCl). It is called pickling, but I am not sure if it works with cast iron.

(Bestansw3rs) It does work with steel and cast iron.

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10y ago

It does rust. That is why you "season" it with oil prior to first use and NEVER put it in a dish washer EVER. After use, wash by hand, wipe off and add a small coat of oil to the dry item. NEVER scrub to the bare metal!

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13y ago

It depends on the Iron, and the conditions in which it is placed.

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Q: Does cast iron rust
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