system
Given the following post, respond as if you're commenting on Reddit:
human
eli5, What is the difference between aluminum and space grade aluminum?

Is it just marketing or is there an actual structural difference?
gpt
Well important question. Does it say what specific alloy it is. Or does it just say “space grade aluminum”.

Because if it says something like “Aluminum alloy 2024” then yea that is a specific alloy that is commonly used in the aerospace world.

But if it JUST says “space grade aluminum” then that is probably the same thing as when a food says “SUPER FOOD” on the packaging, there’s no actual legal regulation or anything so it’s probably marketing.