Grand Brass Lamp Parts, LLCAnswer
Jun 14, 2024 - 11:17 AM
Generally speaking, Four basic types of metals fall into "rust-proof" category
Stainless steel - Stainless steel types, such as 304 or 316, are a mix of elements, and most contain some amount of iron, which quickly oxidizes to form rust. But many stainless steel alloys also have a high percentage of chromium – at least 18 percent – which is even more reactive than iron. The chromium oxidizes quickly to form a protective layer of chromium oxide on the metal surface. This oxide layer resists corrosion while preventing oxygen from reaching the underlying steel. Other elements in the alloy, such as nickel and molybdenum, add to its rust resistance.
Aluminum metal - Since it’s lightweight and corrosion-resistant, many aircraft, car and bike parts utilize aluminum for manufacturing. Aluminum alloys contain almost no iron, and without iron, the metal will not rust, but it will oxidize. When the alloy is exposed to water, aluminum oxide film forms quickly on the surface. The hard oxide layer is resistant to further corrosion and protects the underlying metal. View Metal Products at IMS
Copper, bronze, or brass - These three metals contain little or no iron and do not rust, but they can react with oxygen. Copper oxidizes over time to form a green patina, protecting the metal from further corrosion. Bronze is a mixture of copper and tin and small amounts of other elements and is naturally much more resistant to corrosion than copper. Brass metals are alloys of copper, zinc, and other factors, resisting corrosion.
Galvanized steel - Galvanized steel takes a long time to rust, but it will eventually rust. This type is carbon steel that has been galvanized or coated with a thin layer of zinc. The zinc acts as a barrier preventing oxygen and water from reaching the steel, providing advanced corrosion protection. Even if the zinc coating is scratched off, it protects nearby areas of the underlying steel through cathodic conservation and by forming a protective layer of zinc oxide. Like aluminum, zinc is highly reactive to oxygen in the presence of moisture, and the coating prevents the iron in the steel from further oxidation. Industrial Metal Supply carries a wide range of rust-resistant metals for various applications.
Unfortunately this washer is just a regular STEEL washer and is NOT rust-proof.
