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Originally Posted by NousDefionsDoc
I'm not being a smart ass - is there a finite quantity of steel in the world?
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There is plenty of iron but the alloys that make it into steel, then tool steels are getting hard to come by.
Recycle gives us plenty of iron/mild steel base but it takes the other elements to alloy steel into usable structural or tool steels.
For example, firearms barrels have to have some molybdenum and chromium to be strong enough to stand up to the pressures generated by modern powders.
These alloys are among the ones getting hard to find.