Engineers still seem to prefer stainless steel vacuum chambers over aluminum ones. But aluminum provides benefits for vacuum chambers, especially for ultra-high (UHV) and extreme vacuum applications.

Lightweight and non-magnetic, aluminum offers superior UHV characteristics and is easy to machine, making it an ideal material for many applications. Aluminum - The Unsung Hero for Non-magnetic ...

2009 - PACE Award Winner Alcoa What: Aluminum Vacuum Die Casting (AVDC) Process Judge's Citation: The quest for better performance from much lighter parts and systems is a major automotive theme ...