Facts and figures, numbers and stuff. Good things for us all to know.
These Blacksmithing Skill standards were developed by the Appalachian Blacksmiths Association, an ABANA chapter and registered with the Bureau of Apprenticeship and Training, United States Department of Labor. Before someone is accepted as a journeyman blacksmith, they need to be able to perform the following productively, quickly and accurately. It is a good self check list on the skills you need to develop in your craft.
Read more: Journeyman Blacksmithing Skill Standards
Identifying used steel is not easy. You can use a spark test to compare it with known samples of steel. You can try quenching in various ways to see if it can be hardened. Trial and error will show you whether it can be useful or not. The following list identifies what the steel could be, but there are no guarentees. Try it and see.
Read more: Recycled Steel identification
The following information is taken from The Complete Bladesmith by Jim Hrisoulas. We use olive oil as a quench for these steels, it works well, smells nice, is non-toxic and reduces your cholesterol.
Read more: Properties of Carbon Steel