In the old days people pretty much used every little bit of just about everything, also recycled and re-use everything.
I think it would be cool that when you decide to destroy something you own to build a better one, or just because it's in the way, that you'd get a small %
back of the materials. Not a lot, just a bit.
Also I think metals should be recyclable with a certain loss %. Colonists were recycling iron all the time, a horseshoe may have been many things before being a horseshoe.
So basically if you have a bunch of Q50 tools and you end up with better ones, it would be fun to be able to cast them in the smelter and get a bit of bars back
even if they have to be a bit lower quality, at very worst you use them for mine columns.