So, I'm slowly working on a concept a little like "Victorian Shadowrun", where magic is suddenly introduced to Victorian Society.
One of the side effects of this is a metal, let's call it Orichalcum which has some rather interesting properties, including an ability to wind a spring of it rather tighter than a steel spring.
Actually, a LOT tighter.
My question is though, how much tighter could a metal be wound than a spring steel? What sort of energy densities are possible? Can we get up to something like 45 MJ/kg (gasoline)? Higher?
I'm assuming there's no residual magic in the metal, just a perfect alignment of atoms etc.