[Eaker]

Also trained in metallurgy.

You certainly made my point.

Eaker

[Cold Heat]

There are compounds used in manufacturing today and for some time now that have many, (not all) of the qualities of steel or at least cast iron.

It can be milled, threaded and formed to any size and shape.

I used a bunch of it during my career. It withstands heat and impact to a reasonable degree and does not deteriorate for some time. Although, it was never used as a permanent repair. It does degrade over time.