Stainless Steels: The most common of the corrosion resistant alloys, stainless steel, by definition contains a minimum of 10.5% chromium. The chromium creates a self-healing oxide layer that delivers corrosion resistance.

Iridium

stainless steel

Stainless Steels Stainless steel is another example of a metal that does not rust. Through it is important to note that some grades are more resistant to rust than others. Austenitic stainless steels such as 304 or 316 have high amounts of nickel and chromium.

Stainless steel. Aluminum metal. Copper, bronze or brass. Galvanized steel.

Stainless steel remains stainless, or does not rust, because of the interaction between its alloying elements and the environment. Stainless steel contains iron, chromium, manganese, silicon, carbon and, in many cases, significant amounts of nickel and molybdenum.

9 Ways to Prevent Rust

1. Use an Alloy. Many outdoor structures, like this bridge, are made from COR-TEN steel to reduce the effects of rust.
2. Apply Oil.
3. Apply a Dry Coating.
4. Paint the Metal.
5. Store Properly.
6. Galvanize.
7. Blueing.
8. Powder Coating.

Iron is a very useful metal.

Rhodium

Iron and steel are the least expensive metals on Earth and make up 95 percent of the tonnage of all metals produced globally—that’s more than 1.3 billion tons per year! Iron does not occur on Earth’s surface as a metal; it must be extracted from iron ores like hematite and magnetite.