Hertz
Stainless
- Joined
- Apr 27, 2009
- Location
- Sudbury, Ontario, Canada
I've heard many different designations of 4140, I'm wondering the differences. Even when I search on the net, it seems to bring up different types than what I'm actually looking for. Are some of these not actual standards and just "slang" per se?
4140 pre hard
4140 HT
4140 QT
4140 HTSR
4140 Annealed
4140 with just a hardness attached to it. (Dwg says 4140 steel 40rc)
I understand what they stand for, for the most part but I guess what I'm mostly wondering, is what is the difference between Pre Hard, QT, and HT?
How do they relate to HTSR?
I've also read that HT, QT, HTSR and Pre hard and generally the same.
4140 pre hard
4140 HT
4140 QT
4140 HTSR
4140 Annealed
4140 with just a hardness attached to it. (Dwg says 4140 steel 40rc)
I understand what they stand for, for the most part but I guess what I'm mostly wondering, is what is the difference between Pre Hard, QT, and HT?
How do they relate to HTSR?
I've also read that HT, QT, HTSR and Pre hard and generally the same.
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