colonelhogan44
Plastic
- Joined
- Aug 21, 2012
- Location
- Southern Idaho
I have 8 of the same part all made on a manual lathe, 4 made from 4140 and 4 made from annealed S7. They look visually identical, and I don't have access to hardness testing or XRF or any specialized analysis equipment, but I do have a decent optical microscope. I'm going to break out my metals handbook to see if there is anything in that may provide guidance.
Any tips and/or tricks on how to distinguish the parts? I have 1 of each that are of a known material. Thoughts?
Any tips and/or tricks on how to distinguish the parts? I have 1 of each that are of a known material. Thoughts?