Gayle Bradley Bowie??? Its REAL!!! PSF27 Steel???

The Aflac Duck

The Aflac Duck

Joined
Feb 27, 2014
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So I was scrolling through knife center and see this:

SPFB33GPn.jpg

:eek::eek::eek::eek::eek::eek::eek::eek::eek::eek:

WOW, but can someone tell me about this PSF27 steel??? Like a composition chart or something?

If its anything like I'm hoping, I'm gonna be on that preorder list!!!
 
It's a spray formed version of D2. Very fine grained I've read. Ought to be good stuff. I like CPM-D2 a lot, and this should be a bit better yet.
 
So the makeup is the same as D2, but the process is more similar to Bohlers "gas atomization" process rather than crucibles CPM process?

Where is this steel sourced from?
 
I spoke with Gayle about PSF27 at the Blade Show last year. He spoke very highly of it and said that it was really nice to work with in the shop, citing the fine grain and grindability. He also said that it was like an "optimized D2" in use.

Looks good!

TedP
 
All this talk of "spray formed" steel and "gas atomized" steel should really make your 3D printer shake rattle and roll!

:cool:
 
This looks amazing..... do we know the price yet?

Finally a spyderco that I dont have to use to appreciate its looks! :D
 
I had to resurrect this post after watching a certain video from SHOT Show.
My lord, I am excited about this knife. I do quite a bit of camping and backpacking so I love a good fixed blade camp knife.

I tossed in a couple of the best steels I could think of that you commonly see in outdoors fixed blades these days, and the results are pretty encouraging.

Can't wait for this to hit BHQ!

PSF27.png
 
^ Is it Carpenter PSF27, or SB Specialty Metals PSF27?
They seem to be associated yet still separate...?

I saw in another unrelated thread that this seems to be a very trendy popular metal for fixed blades, I'm sure for good reason.
 
The steel is made in Germany. Nothing to do with Carpenter. SB is the distributor.

sal
 
Rare blade said:
Msrp was high if I recall correctly for a fixed blade.
Click to expand...

That's a shame. I've noticed this a lot with the spyderco fixed blades. They sure do command a premium for them. $265 seems to me to be pretty high for d2 type steel performance on fix blade but to each their own.
 
wire edge said:
It's a spray formed version of D2. Very fine grained I've read. Ought to be good stuff. I like CPM-D2 a lot, and this should be a bit better yet.
Click to expand...

Yes, and Phil Wilson of Spyderco said at this years Shot Show that PSF27 is 100% better than 154cm. Sounds like they spent a number of years trying to get the heat treat on PSF27 just right.
 
Bushido185, Just as a clarification, I think you misquoted me. If you are referring to the NF video I was talking about Particle high Vanadium carbide steels in general and did not compare it to 154 CM or CPM 154. I have no direct experience with PSF27 as yet. CPM 154 is a very nice steel, I use it for fillet knives and kitchen knives and sometimes hunters. Maybe one day I can do a identical knife direct comparison between CPM 154 and PSF27 but for now I know that Gayle loves it, has a lot of experience with it and that is good enough for me. Phil
 
Phil Wilson said:
Bushido185, Just as a clarification, I think you misquoted me. If you are referring to the NF video I was talking about Particle high Vanadium carbide steels in general and did not compare it to 154 CM or CPM 154. I have no direct experience with PSF27 as yet. CPM 154 is a very nice steel, I use it for fillet knives and kitchen knives and sometimes hunters. Maybe one day I can do a identical knife direct comparison between CPM 154 and PSF27 but for now I know that Gayle loves it, has a lot of experience with it and that is good enough for me. Phil
Click to expand...

Hi Phil, you are right, I was referring to the NF video and misunderstood what you were saying. I went back and watched it again and it makes much more sense now. Thanks for clarifying. :)
 
Mr Bushido, ok no problem, understand. If you need to contact me for more information pls use e mail through my website. Phil
 
I wonder if the "spray formation" discussed here is the same as Ospray/Osprey?

From what I could gather it appears to be. From Steel Heat Treatment Metallurgy and Technologies, George E. Totten the following table is published on page 678.

Comparison of Properties (Relative Values) of High-Speed Tool Steel Made
by Various Processes

GETotten_zps67b38e91.jpg


He accredited: Source: From G. Roberts, G. Krauss, and R. Kennedy, Tool Steels, 5th ed., ASM International,
Materials Park, OH, 1998, p. 41.
 
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