I received some material and checked the harness of it. It is 4130 annealed, which from what I can tell is suppose to be 82 HRB. It checks out to be 64 HRB. Is this with in spec? what should I do with this?
I recieved some sheet metal from a different supplier and it is quite different from what we have had in the past. I was curious as to the grade/quality and haven't found any specs. If anyone knows how to research the specs, Please e-mail me or reply.
I am slightly new to the metal world and...
If machining a billet piece, what would be the most similar metal to Forged 4140. Ductility is critical.
I am considering 4340 and then heat treating it for stress relief