nozh2002
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- Joined
- Jun 9, 2003
- Messages
- 5,736
This is new version of P with SGPS steel on the blade (laminated with VG2).
This is biggest folder with SGPS they have - 3":
Design as I understand pretty common japanese - first I saw it on Hiro Little Blue:
However there are few differences - slightly convex grind vs hollow grind, frame lock vs hidden liner lock, polish is not mirror polish as for Hiro. Otherwise, it is pretty close.
I am wondering about this steel SGPS. Composition is pretty similar to CPM S30V
SGPS:
C=1.4 Cr=15 Si=0.5 Mo=2.8 Mn=0.4 S=0.03 P=0.03 V=2.0
CPM S30V:
C=1.45 Cr=14 Mo=2 V=4 N=0.2
However japanese metallurgists make it possible to harden it to 62HRC while CPM S30V is softer
It is also pretty close to another japanese PM steel SRS-15:
C=1.5 Cr=13 W=1.25 Mo=2.75 V=1.5
which also has like 65HRC
Thanks, Vassili.
This is biggest folder with SGPS they have - 3":
Design as I understand pretty common japanese - first I saw it on Hiro Little Blue:
However there are few differences - slightly convex grind vs hollow grind, frame lock vs hidden liner lock, polish is not mirror polish as for Hiro. Otherwise, it is pretty close.
I am wondering about this steel SGPS. Composition is pretty similar to CPM S30V
SGPS:
C=1.4 Cr=15 Si=0.5 Mo=2.8 Mn=0.4 S=0.03 P=0.03 V=2.0
CPM S30V:
C=1.45 Cr=14 Mo=2 V=4 N=0.2
However japanese metallurgists make it possible to harden it to 62HRC while CPM S30V is softer
It is also pretty close to another japanese PM steel SRS-15:
C=1.5 Cr=13 W=1.25 Mo=2.75 V=1.5
which also has like 65HRC
Thanks, Vassili.