Hardening, Tempering & Heat Treatment Guide - Metalworking Workshop Practice Manual for DIY Projects & Professional Metal Fabrication

Having worked 50 years in the industry of mechanical engineering, there is a lot more to know, but this is a good starting point. There are better graphs and pictures in other more modern books. I recommend looking for other sources that are out there. To supplement this book. Tubal Cain is a real character in the Bible. This Tubal Cain has written lots of other books and is well known in model engineering circles Especially in Britain.