Midsouth Machine
Plastic
- Joined
- Oct 23, 2010
- Location
- Arkansas, USA
OK guys, I know this may sound like a stupid question to some, but I have asked this question to two different metal suppliers and can't get a straight answer. I don't do a lot of prehard parts. Some, but not much. I am trying to pick up a new customer and instead of the usual 4140 PH or HT on the print, all of his prints say 4140 HTSR. Is this a different condition than HT, or is 4140 "heat treated" normally stress relieved too, but they just don't say that, or what? Thanks in advance, and everyone have a happy turkey day.