Magnesium is a strong, silvery-white, lightweight metal, which is used to create alloys with zinc, lead, aluminum, and other nonferrous metals. Magnesium alloys are light and feature superior machinability and ease of casting.They are often anodized to enhance their corrosion resistance.The consumption of magnesium alloys has increased considerably in recent years. This trend is progressing because of the pressure to reduce Carbon Dioxide emissions across industries, and is particularly evident in the automotive industry, where there is a clear intent to reduce the weight of vehicles. Magnesium is 36% lighter than aluminum and 78% lighter than iron, making it a more sustainable choice. Magnesium alloys are therefore being used more commonly in the automotive industry, in components produced by processes such as casting, extrusion, rolling or forging.
One such alloy of Magnesium, with Aluminum and Zinc, is named AZ61. The alloy exhibits high tensile strength, superior corrosion resistance, and it is possible to perform various finishing techniques on its surface. It is an alloy of Magnesium that is most used for forgings. Due to its properties and passivation, it is also used in Magnesium-air fuel cells.
Rods of Magnesium Alloy AZ61 are cast in varying diameters, and find use as welding rods for TIG welding, and sacrificial anodes in water heaters, boilers and other equipment. When used as sacrificial anodes, the extruded rods of magnesium alloy, are applied in water heaters, heat exchangers, evaporimeters, boilers and similar equipment. They soften water, remove dirt and extend the service life of these machines.