Any news on S90V - wich manufacterers and wich models

Originally posted by koolstof
frank k, your help proves to be real usefull for me, thanks a lot!
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Glad to be of some help.

Let me try to boil down the performance and trade offs of the CPM steels you are asking about.

CPM 15V Highest wear resistance, low toughness, not stainless.

CMP 10V Has a good increase in toughness (roughly the same as D2), with a good decrease in wear resistance compared to 15V.

CPM S90V (420V) About as tough as CMP 10V, but not as wear resistant. Unlike CMP 10V and 15V, S90V is stainless.

CPM S30V Similar to S90V in toughness, with lower wear resistance and higher corrosion resistance. S30V is the only one offered by factory knifemakers (cheaper to work with).

All of the above is based on the Crucible data sheets - field performance may differ.


- Frank
 
are there any small production knives besides the ones from mr. reeve that use s30v? everything is a compromise. and as you go up to fancier steels you loose corrosion resistence. to me corrosion resistence is pretty important. i was just told by mr. stamp in an earlier post of mine that even 440a would be acceptable for my intended usage of a very small knife. well, i would not get 440a, but 154cm or bg42 are just fine. what are the tradeoffs from moving up to s30v from 154cm? i am not an idiot(i hope) but i honestly can not tell the difference between a bg42 small seb and a s30v small seb when opening letters, and cutting small vines in the garden. honestly, the vines seem to dull all my blades a lot faster than the letters do. i guess it all boils down to what your intended use is. just because someone is offering a supposedly superior blade, don't forget there will be trade offs. i am not really a knife nut in the sense that i take great care of my edc's. i use the heck out of them and want them to remain sharp and not rust. i honestly do not know in what way s30v would be better than 154cm for ME. could someone please compare the two?

i was also wondering why do the vast majority of custom makers at any price point tend to use 154cm/ats-34? it seems to be the most prevailent across the board. case in point, just go to any store (website) that sells about 40 different custom makers knives and add up how many use 154cm compared to other metals. does this tell us anything? and if so, what?


thank you,
holdanedge.
 
Crucible compares the 154CM with S30V on the S30V Data sheet. Crucible shows S30V to have a 21% increase in edge holding (CATRA)and a 400% increase in transverse C-notch Charpy impact testing (although a much lower increase in toughness is shown on the comparagraph on the same page of the Data Sheet, apparantly this is based on longitudinal impact testing), over 154CM. S30V is also shown to have greater corrosion resistance.

If crucible's data is correct, then S30V is superior to 154CM in just about every way (although it may cost more).

If you will notice the difference or not depends on how you use your knives and how closely you note their performance.


-Frank
 
well i would love to have some s30v knives for bragging rights. i honestly don't know if i would notice a difference with the little knives cutting into soft objects. but, better is better. i just don't understand why most of the custom makers still use 154cm/ats-34?



thank you,
holdanedge.
 
Manufacturers currently offering S30V (there may be more!);

Chris Reeve Knives
Microtech (their new Black Marlin fillet knives kick ass!)
Simonich Knives

I am a big fan of S90V. My experience has been with many knives from Darrel Ralph and Scott Cook. Great edge holding and I don't find it hard to resharpen if the edge is thin to begin with. I recently ordered a Lochsa folder from Scott and opted for the S90V rather than the S30V.
 
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