The amount of aluminum extruded has increased considerably in recent years due to the metal’s wide availability and relatively low cost. Extrusions offer a combination of light weight and excellent thermal and electrical conductivity, along with strength and resistance to corrosion. Aluminum also is commonly alloyed with other metals to produce products with specific advantages for a wide range of end-user applications.
Aluminum weighs less than half of an equivalent steel part and has been adopted for weight and energy savings on many types of vehicles. The ease of extruding a high-tolerance and detailed profile minimizes the need for additional finishing operations. Because of its high-strength to low-weight characteristics, the aerospace industry rapidly adopted the use of aluminum. For the same fuel-efficiency reasons, aluminum is now used for land-based transport, including autos, trucks and trains.