Info on SG2/SGPS/3G/R2 wanted

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Jan 21, 2015
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These are all the same steels correct?

Can anyone give any info on how it's made? I see it's a powdered steel, so the process is the same as what crucible and udelholm do?

Is it made in Japan? I've only seen it on fallkniven and Japanese kitchen knives.
 
3G is the Fallkniven name for laminated Super Gold 2 but yes otherwise those are all the same. As far as I know there is no Super Gold 1. Maybe there was for a short time.

It is made in Japan, yes. Made with powder metallurgy with the same basic process as Crucible and Uddeholm.
 
Made by Takefu Special Steel Company, the same company that makes VG10.

 
3G is the Fallkniven name for laminated Super Gold 2 but yes otherwise those are all the same. As far as I know there is no Super Gold 1. Maybe there was for a short time.

It is made in Japan, yes. Made with powder metallurgy with the same basic process as Crucible and Uddeholm.
I've seen it compared to S30V but it doesn't look that similar to me.

It's got about half the vanadium and is used much harder. 60 hrc seems to be the norm for S30V, while Fallkniven makes their 3G at 62 hrc.

Is there a difference in toughness between the two?
 
I've seen it compared to S30V but it doesn't look that similar to me.

It's got about half the vanadium and is used much harder. 60 hrc seems to be the norm for S30V, while Fallkniven makes their 3G at 62 hrc.

Is there a difference in toughness between the two?
I'd say it was between S30V and Elmax. I have a Shun Taiyo in SG2 and a Takeshi Saji Bunka in R2. Both are really great steels for kitchen duty and easy to sharpen.
 
I'd say it was between S30V and Elmax. I have a Shun Taiyo in SG2 and a Takeshi Saji Bunka in R2. Both are really great steels for kitchen duty and easy to sharpen.
Im excited to try it out. I've heard rumors it's easy to chip, but the internet doesn't explain much more than that.

I've got a Fallkniven TK2 on the way. I'll sharpen it before I use. I don't want to risk edge problems due to hot grinding.
 
"Info on SG2/SGPS/3G/R2 wanted"

They are all Japansee steels.

SG2 (Special Gold 2) and SGPS (Special Gold Powder Steel) are the same thing

Fallkniven's 3G is their name for a laminate/San Mai construction using SG2 as the core and VG2 for the sides.
Because the structure is VG2/SG2/VG2 they came up with 3G as a name.

The powder steel R2 is the name used by Kobelco (Kobe Steel).
SG2 is essentially the same steel with very minor differences and sold by Takefu Special Steel Co.
They are close enough that people consider them equivalent.
Takefu is also known for it's V-Gold series (VG1, VG10, VG2, VG5, etc) which are not powder steels.

Both R2 and SG2 knives are often marketed in Japan as HSS (High Speed Steel) although in some cases
that can include SRS15 as well.
 
Fallkniven uses this steel in the form of a laminate. It's laminated between layers of lower carbon steel. The result is you get the edge retention of the high hardness center, but it's considerably toughened by the outside layers.
 
Ken beat me to it and posted as I was writing.
 
"Info on SG2/SGPS/3G/R2 wanted"

They are all Japansee steels.

SG2 (Special Gold 2) and SGPS (Special Gold Powder Steel) are the same thing

Fallkniven's 3G is their name for a laminate/San Mai construction using SG2 as the core and VG2 for the sides.
Because the structure is VG2/SG2/VG2 they came up with 3G as a name.

The powder steel R2 is the name used by Kobelco (Kobe Steel).
SG2 is essentially the same steel with very minor differences and sold by Takefu Special Steel Co.
They are close enough that people consider them equivalent.
Takefu is also known for it's V-Gold series (VG1, VG10, VG2, VG5, etc) which are not powder steels.

Both R2 and SG2 knives are often marketed in Japan as HSS (High Speed Steel) although in some cases
that can include SRS15 as well.
Fallkniven uses this steel in the form of a laminate. It's laminated between layers of lower carbon steel. The result is you get the edge retention of the high hardness center, but it's considerably toughened by the outside layers.
Great info guys, this I why I like this site.
 
I've heard rumors it's easy to chip

Yup, even though this was not my doing, so I don't know what exactly happened..

This is a veeery thin japaneese kitchen knife at ~63 HRC.

LBFv9Fe.jpg
 
Yup, even though this was not my doing, so I don't know what exactly happened..

This is a veeery thin japaneese kitchen knife at ~63 HRC.

LBFv9Fe.jpg
Dang that's heart breaking. I would be asking my wife if she did it lol.
 
Dang that's heart breaking. I would be asking my wife if she did it lol.

It was probably my son and we don't know what happened, probably smacked it agaist the sink or some other hard stuff.

But I've used the hell out of it and never had any problems. It's lazer thin stock, 1.7 mm at the spine then ground to a full convex. So no banging on the steel, recommend it.
 
I've seen it compared to S30V but it doesn't look that similar to me.

It's got about half the vanadium and is used much harder. 60 hrc seems to be the norm for S30V, while Fallkniven makes their 3G at 62 hrc.

Is there a difference in toughness between the two?
The differences in advertised hardness of S30V and SG2 are primarily from heat treatment rather than capability or toughness.
 
The differences in advertised hardness of S30V and SG2 are primarily from heat treatment rather than capability or toughness.
What differences in performance would you predict between the two at the aforementioned harnesses?
 
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