BAC 1520-1397 is a very commonly used Boeing seat track that is available is three different alloys and tempers, 7075 T6511, 7178 T6511 and 7050 T76511.
Airline track is also known as L-track or ltrack, a name that originated from its use in the airline industry. The track is installed on the floor of the aircraft, with the seats attaching to the track rather than the aircraft itself. The seat tracks allow for secure attachment of the seats, while allowing the seats to be moved or removed quickly by simply removing them from the track.
7075 Aluminum is the main aerospace and aircraft alloy used in strengthening aluminum aircraft structures. Aluminum 7075 is a high-strength alloy that offers good stress-corrosion cracking resistance. Known as a mainstay in the aerospace industry since it was introduced and offers moderate toughness, as well as an excellent strength-to-weight ratio.
It is also important to note that at sub-zero temperatures Aluminum 7075 increases in strength with an ultimate strength of 33000 PSI (-0) and 82000 PSI (-T6) with a shearing strength of 22000 PSI (-0) and 49000 PSI (-T6).
When welding, resistance welding is preferred, while gas and arc welding should be avoided. The 1.6% copper content can create an issue with welding. If you want to anodize then 7075 is a great choice and is machinable with a great finish. For more information or to request a quote, simply fill out this contact form.