Home Forums Gear Knives and Blades CPM S45VN

Tim you're about as close of an internet friend that I have. I look forward to what you write and hope you continue to contribute. I found your question to be of interest and appreciate you sharing the Crucible page. I may have come across snarky with my CPM post but guessed you were looking for someone selling usable stock.


From your Crucible link:
"CPM S45VN is a martensitic stainless steel designed to offer
improved corrosion and wear resistance over CPM S35VN. Its
chemistry has been rebalanced so that it forms more chromium
carbides, while at the same time leaving more free chromium in the
matrix. The use of Niobium and Nitrogen in place of some of the
Vanadium and Carbon produces an excellent combination of edge
retention, wear resistance, corrosion resistance and toughness
properties making this the ideal choice for an EDC knife steel.

The CPM process produces very homogeneous, high quality steel
characterized by superior dimensional stability, grindability and
toughness compared to steels produced by conventional melting
practices."

But the Crucilble page also shares:
Edge Retention (CATRA Testing Relative to 440C)
Grade %
CPM S45VN 143*
CPM S35VN 140*
CPM S30V 145
154CM 120
440C 100

So CPMS30V has better Edge Retention than CPM S45VN - like any of us will be able to discern a 3% difference.

But the one item that would have me as a knife maker looking at this new steel is:

"In the annealed condition, CPM S45VN is much easier to
machine than CPM S90V and easier to machine than
CPM S30V. "

I suspect some here didn't actually read the Crucible Data Sheet.

Speaking of reading comprehension; yours sucks. You did say this, knowing that MRK just did a big run of M4 for hunting and B&T knives.
While not directly referencing him, you're saying that what he is using is wrong.

Jesus Christ you fuggers are like a bunch of old ladies! Nice try to put words in my mouth!

No what I said was I would not have a hunting or filet knife made out of a steel that is better suited for a fighting or camp/general purpose knife. What anyone else chooses to use is their choice. Personally I like to maximize the potential out of my knives. As I also said I wouldn't make a fighting or camp/general purpose knife out of Rex 121 or S125V! But you cut what I said to best support your effort to try to talk for me.

Again do you have anything of any value or do you have any knowledge to share with us on the original topic? I didn't think so. Have a great night.

deleted...remembering the grief I've taken here before...(even from folks I've helped with this stuff!)