non-ferrous metals
The term "non-ferrous metals" refers to a group of metallic elements that have a characteristic colored surface layer. This colored layer is created by oxidation or corrosion of the metal surface and creates various colors. Among the most famous non-ferrous metals are copper, bronze, brass, aluminum and alloys of these metals.
The most common non-ferrous metals:
Honey (Cu): Honey is known for its characteristic reddish-brown color. Its uses are very diverse, from electrical wires to art objects and jewelry. It is also used in the food industry, for example in cooking containers, because it is highly thermally conductive.
Bronze: Bronze is an alloy of copper with other metals such as tin, aluminum or zinc. It has a characteristic brownish color and is used to make sculptures, tools, decorative objects and monuments.
Brass: Brass is an alloy of copper and zinc. Its color varies between gold and orange. It is used to make a variety of decorative items, from keys to tableware.
Aluminum (Al): Aluminum is a gray metal, but its surface oxidizes to form a layer of aluminum oxide that can be of different colors. Aluminum is used in many industries such as construction, automotive, packaging and consumer goods manufacturing.
Finished steel: Some types of steel may have a finish that gives them a tint of color. For example, stainless steel can be either matte or shiny with different shades such as silver, gold or even black.
Non-ferrous metals have aesthetic value and use in many industries. Their color properties can be significant not only for their decorative appearance, but also for their technical properties and ability to react with the surrounding environment.