President Trump Tariffs Foreign Heavy Metal

European Union, Canadian and Mexican steel exports to the U.S.A. will run into President Trump's new tariffs if they reach the border. Information isn't being taxed though and technological innovations in the manufacture of heavy metal is likely to continue.

I don't know much about doping heavy metal. Tungsten steel or wolfram was about as much as I knew about the history besides the Plant Rouge Ford Motor steel manufacture facility of yore.

What about using nanotech in the manufacture process to create lined conic sections for lightness and strength? Maybe the way steel is poured and cast could be changed so it could be stronger and with less density and weight? Perhaps steel could have molds and different materials doped in to create strong-bubbles and fibers.

https://agmetalminer.com/2017/03/15/innovation-is-alive-and-well-in-the-steel-industry-via-continuous-casting/

http://www.machiningnews.com/2018/03/innovative-tube-and-pipe-products-made-from-steel-and-aluminium/