Spyderco Forums

Very cool. Will be a great user.

RadioactiveSpyder wrote:Now the rush for Halpern scales starts again!

No rush, I've got spares..... :D

Interesting, not different enough to entice me most likely, but maybe some googling will hype this up for me.

Might like this for fall time woods outings. I might pick one up

Is this comparable to any Crucible or Carpenters steel?
I understand its very close to D2. Forgive my ignorance.

MacLaren wrote:Is this comparable to any Crucible or Carpenters steel?
I understand its very close to D2. Forgive my ignorance.

Standard Specs
AFNOR - Z155CDV12.1
AFNOR - Z160CDV12
AFNOR - X169CrMV12
AFNOR - Z155CDV12
AFNOR - X160CrMoV12-28
AISI - D2
BS - BD2
CSN - 19572
CSN - 19573
DIN - X153CrMoV12
DIN - X150CrMoVCo12
DIN - X165CrMoV12*
DIN - X155CrVMo121
DIN - 100Cr4
EN - X160CrMoV121
GB - Cr12MoV
GB - Cr12Mo1V1
GB - Cr12Mo1V
GOST - KH12MF
GOST - KH12F1
GOST - H12MF
GOST - X12MF
JIS - SKD11
JUS - C.4850
KS - STD10
MSZ - K8
PN - NC11LV
SIS - 2310
STAS - 155MoVCr115
STAS - X153CrMoV12
UNE - F.520A
UNE - X160CrMoV12
UNI - X155CrVMo121KU
UNI - X150CrMo12KU
UNI - X155CrVMo121
UNS - T30402
W-Nr - 1.2379
W-Nr - 1.2397
W-Nr - 1.2061

Proprietary Equivalents
? - D2E
? - D2Mod
? - SF27
Akers - Narva12A
Allegheny Ludlum - Ontario
Allegheny Technologies - CNA1
Alloy Tool Steel - MicrofineD2
Amtek Tool - Amtek D2
Assab - XW41
Assab - XW42
Associated Steel - Krome Die
Atlas Steel - F.N.S.
Aubert & Duval - SANCY2
Aubert & Duval - SY4
Balfour & Darwins - SC25
Barworth Flockton - JEC
Beardshaw - CDV2
Bestar - BE2379
Bethlehem - Lehigh-H
Bohler-Uddeholm - Sverker21
Bohler-Uddeholm - K110
Bohler-Uddeholm - K105*
Boncato - B79
Bonpertuis - Z
Braeburn - Superior #3
Carpenter - No. 610-FM
Carpenter - No. 610
Carrs Tool Steels - 69S
Columbia Steel - Atmodie
Cooks Steels - KMW
Crucible - Airdi 150
Crucible - CPM D2
Daido - DC11
Daido - DAP DC11
Disston-Sons - Croloy
Doosan - STD11
Dorrenberg - CPPU
EST - YTL122
Eschmann-Stahl - ES70S
Ferlat Acciai - DTC-AR
Firth Brown - Diehard Standard
Firth-Sterling - Cromovan
GGD Metals - GGD-D2
George H Cook & Co - KMV
Geruk - GPMD2
Hadfields - Hecla159
Heye - HYRD2
Heye - HYD2
Heye - HYRD2Co
Hitachi - HI-PM31
Hitachi - SLD
Hitachi - ZCD-M
Hitachi - SLD2
Houghton & Richards - H&R K-2
Hydra - VitalX
Inman & Co - IMV
Jessop Saville - H42
Jessop Steel - CNS1
Kind & Co - CH16V
Latrobe - Olympic
Latrobe - LSS D2
Latrobe - Olympic FM
Lohmann - LO-K 2379
Lucchini - DUYOS2379
Macreadys - Usaspead
Metal Ravne - OCR12VM
Mitsubishi Steel - R31
Nachi Fujikoshi - CDS11
Nippon Koshuha - KD11V
Nippon Koshuha - KD11
Nippon Koshuha - KD11S
Novo - NRM
Parkin - FMP336
Poldi - 2002R
Precision Marshall - Aristocrat
Riken Seiko - RD11
Samuel Osborn & Co - GN
Sanderson Kayser - KEA180
Sanderson Kayser - KEA180
Sanyo - QCM7
Sanyo - QCD2
Sanyo - QC11
Schoeller Bleckman Steels - Noresco Dominator VM
Secosar - RCC Supra
Simonds - CCM
Stone Steel - CS13M Extra
Stones Steels - CS13M Extra
Stora Steel - Store364
Teledyne Vasco - Ohio Die
Thyssen-Krupp - Thyrodur2379
Thyssen-Krupp - 2379
Universal Cyclops - Ultradie 2
Universal Cyclops - Ultradie 3
Villares Metals - VD2
WSM Werkzeugstahl - WCR79
Walter Somers - Somcold
Weld Mold - Weld Mold 938
Zapp - LC120S
Ziv Steel - Darwin #1

Here's a comparison chart, perhaps best taken with a grain of salt:


http://sb-specialty-metals.com/grades/psf27

The spray forming process sounds pretty crazy.

Yes, I'm in fer sure!

I'm in fer sure. Sounds like an interesting steel. :)

xceptnl wrote:

Interesting, Spyderco's steel chart shows it as containing Nitrogen, but this graph shows none. This graph also shows trace amounts of Phosphorus and Sulpher, but the Spyderco steel chart shows none (perhaps they didn't list it as the amounts are very small).

This stuff should cut like a demon
Looks like a very nice steel
Thanks Sal & gang

Interesting. I didn't expect this one. I really like D2. And I really like mules. But will this make me break out my wallet...I don't know.

Is this one made in a big enough quantity to discourage those buying to flip?

I doubt this will be a flipper.

Jax wrote:This stuff should cut like a demon
Looks like a very nice steel
Thanks Sal & gang

Please elaborate.

There is a short so far- discussion on BF about PSF27. Good things are being said about it.
http://www.bladeforums.com/forums/showt ... -on-PSF-27

Very excited for this one. I love the Mules. Did anyone catch where this was being manufactured at? I'm guessing it's a import.

The mules are one of my favorite things about spyderco. Might have to pick one up.

pdptrow wrote:There is a short so far- discussion on BF about PSF27. Good things are being said about it.
http://www.bladeforums.com/forums/showt ... -on-PSF-27

Thank you!

I don't understand why Spyderco chose to emphasize PSF27 with this new Mule and the Gayle Bradley Bowie. Better than most D2 steels because of the spray forming process (likely most directly comparable to CPM D2), but Cru-Wear seems to be superior in both toughness and abrasion resistance. If this one comes in at HRC 58-59, like the Elmax Mule, it won't have very impressive characteristics.
Spyderco chose not to make more knives in CPM D2, after the PM1 and the Millie projects, because there wasn't enough of a performance increase over other available D2 variants (so I'm told).
Kinda reminiscent of the CTS BD1 venture. It wasn't really any better in performance than other steels in its class, and worse than some in edge retention, in particular. Was steel cost and the preference for an American produced steel the driving motivation for its production use ? And could that be the case here ?

Tell me if I'm off base or way out in left field. I'm still learning and welcome constructive correction.