WHY STEEL IS REAL
Although I am a great fan of your magazine, it is rare that I find something in it involving anything on which I can offer some expertise. I refer to your article “Extinct Steel” (October 2016, in the “How to make anything” section), about steels used in locomotive wheels that have not been made in a long time. To the casual reader, some terms in this article might be unclear, and I would like to give some background into the skill and technical knowledge that it takes to create steel to a specific standard.
Steel is very complex, and its main com-