Aluminum alloys can be categorized by their level of corrosion resistance. The three most common types of aluminum alloys that are especially resistant to corrosion are:
1. Magnesium-Silicon Alloys: Magnesium-Silicon (Mg-Si) alloys are the most corrosion-resistant aluminum alloys. These alloys are formed by heating a blend of magnesium and silicon in order to create an alloy with a much higher corrosion resistance than aluminum alone. Mg-Si alloys can be used in many different applications, including aerospace and marine.
2. Zinc-Magnesium Alloys: Zinc-Magnesium (Zn-Mg) alloys are also highly corrosion-resistant. Like Mg-Si alloys, these alloys are formed by mixing zinc and magnesium together, forming an alloy that can resist corrosion in a wide range of environments. These alloys are often used in Marine and Aerospace applications, as well as in many industrial applications.
3. Aluminum-Titanium Alloys: Aluminum-Titanium (Al-Ti) alloys are another type of aluminum alloy that is very corrosion resistant. These alloys are formed by combining aluminum and titanium, resulting in an alloy with exceptional corrosion resistance. Al-Ti alloys are often used in applications that require high strength and corrosion resistance, such as aerospace, chemical, petroleum and marine.
These three aluminum alloys are all highly resistant to corrosion, making them ideal for many applications. They are also relatively easy to mold and shape while still maintaining their corrosion resistance, making them a great choice for any application that requires a tough and durable metal. It is important to note, however, that all three of the alloys will still experience corrosion if not properly cared for. Making sure that any necessary cleaning and protective coatings are applied and maintained on the surface of the alloys is essential for continued corrosion resistance throughout the life cycle of the product.