Steel Question

nozh2002 said:
And INFI is

C=0.5
Va=0.36
Cr=8.25
Co=0.95
Ni=0.74
Mo=1.3
N=0.11

Not really too close. But we may hope it will be great steel also.

Other Nitrogen steel is xn15-TN

C=0.4
Cr=15.5
Mo=2
V=0.3
N=0.2

Known for extreme rust resistance...

What HRC will it be?
Looking forward to see this steel!

Thanks, Vassili.
Click to expand...


Hi Vassili,
The recommended hardness range for 14C28N will most likely be 55-62 HRC, like for 13C26.

I believe also S30V and H1 contains nitrogen, together with INFI and X-15TN that you mention I believe they are all covered.

Vassili, do you know why they put nitrogen in INFI? Normally nitrogen is used as a hardness driver (instead of some carbon) but without the negative contribution to corrosion resistance that carbon brings. But INFI cant be stainless at all anyway, so why bother? Do you have any idea?

X-15TN is an interesting grade in my opinion, maybe the hardness potential is slightly low for knives but it's an interesting grade. I believe that the nitrogen content is slighly lower than 0.2 % though, like 0.15% (from the name X15-TN), I might be wrong though. I have seen in some steel charts from knife makers that they list X15-TN as 0.2% but I seem to remember that we went through their patent on that grade and it said 0.15%. Well it doesn't matter, the nitrogen in the X15 is there for corrosion resistance that much is clear.

Regards
//Jerker
 
Jerker I definitely look forward to the salt spray tests going up on the site. Will you test 14C28N as well? Will there be any micrographs taken of 14C28N?
 
Razorsharp244 said:
Vassili, do you know why they put nitrogen in INFI? Normally nitrogen is used as a hardness driver (instead of some carbon) but without the negative contribution to corrosion resistance that carbon brings. But INFI cant be stainless at all anyway, so why bother? Do you have any idea?
Click to expand...

This INFI composition is not official - as I understand it is from some German knife club where they do analysis. I do not know how Busse came up with this composition, but noss tests looks very impressive.

Thanks, Vassili.
 
Larrin said:
Jerker I definitely look forward to the salt spray tests going up on the site. Will you test 14C28N as well? Will there be any micrographs taken of 14C28N?
Click to expand...

Hi Larrin,
Yes, we will test for sure. As you can see in our hardening guide we have decided to keep 14C28N out of there completely, at least for now. It's a new and exclusive grade and we normally treat thoose a little different.

Yes we have micrographs of 14C28N, It looks quite similar to 13C26 but I'll send you a picture or two for your collection.

Regards
//Jerker
 
Razorsharp244 said:
...but I'll send you a picture or two for your collection.

Regards
//Jerker
Click to expand...
funny-pictures-evil-raccoon.jpg



:thumbup::D
 
What does Sandvic has in ZDP189-CPM S90V class - PM steels?
Do you have any stainless ball bearing ESR, VAR steels like 110x18MShD?

Thanks, Vassili.
 
nozh2002 said:
What does Sandvic has in ZDP189-CPM S90V class - PM steels?
Do you have any stainless ball bearing ESR, VAR steels like 110x18MShD?

Thanks, Vassili.
Click to expand...

Unfortunatly we have nothing like that. Sandvik is not really into powder steels at all. Maybe in the future.

Regards
//Jerker
 
nozh2002 said:
But what is you best performer?

Thanks, Vassili.
Click to expand...

Hi Vassili,
From a pure wear resistance point of view (CATRA-style) 19C27 will win. I personally think that there are more to a knife than just wear resistance, like edge stability, sharpness, toughness and corrosion resistance.

So 'I' think for now our stongest performers are 13C26 (slighly low on corrosion resistance though) and 12C27. 14C28N will be the overall winner soon. I a 14C28N folder and a 12C27 fixed blade which I use most of the time now. Apart from the Shallot Proto I scammed Thomas out of :D.

I used to have a 12C27 kitchen knife which I love, but I reluctantly had to see it out-performed by a SG-2 Shun Elite. Thoose knives are actually pretty good.

Regards
//Jerker
 
Razorsharp244 said:
Hi Vassili,
From a pure wear resistance point of view (CATRA-style) 19C27 will win. I personally think that there are more to a knife than just wear resistance, like edge stability, sharpness, toughness and corrosion resistance.

So 'I' think for now our stongest performers are 13C26 (slighly low on corrosion resistance though) and 12C27. 14C28N will be the overall winner soon. I a 14C28N folder and a 12C27 fixed blade which I use most of the time now. Apart from the Shallot Proto I scammed Thomas out of :D.

I used to have a 12C27 kitchen knife which I love, but I reluctantly had to see it out-performed by a SG-2 Shun Elite. Thoose knives are actually pretty good.

Regards
//Jerker
Click to expand...

I thought RWL34 (PM ATS34 same as "new" CPM 154) is your steel, and it is powdered.

I hope you guys catch up with Hitachi and do some ZDP189, SRS15 or YXR7...

Thanks, Vassili.
 
nozh2002 said:
I thought RWL34 (PM ATS34 same as "new" CPM 154) is your steel, and it is powdered.

I hope you guys catch up with Hitachi and do some ZDP189, SRS15 or YXR7...

Thanks, Vassili.
Click to expand...

Yeah, me too,
Sandvik has had other focus areas than Hitachi. We are strong within tube-making and heating materials while Hitachi has made efforts into tool steels and powdermets.

Starting a powder steel plant is not done in a heartbeat though. But we'll see happens in the future.

Regards
//Jerker
 
I too thought RWL34 was his steel. I don't know where I got it from. I do know I have been sitting here absorbing as much information as I can. It's not often we have guys like Jerker here willing to answer our questions. Thanks again. Joe *back to lurking*
 
Hi guys,
I think that RWL34 is made by Erasteel, another swedish steelmaker only a couple of hours from Sandviken, so a misunderstanding is understandable. Another PM-steel used in scandinavian customs right now, although small in volume, is ELMAX from Uddeholm. I think Uddeholm is one of the best PM-steel makers out there so anything coming from there is probably good. Not cheap though, and hard to find in knife steel thicknesses since they probably dont deal much with hot rollers.

Many people confuse Sandvik/Uddeholm/Erasteel so dont worry.

Regards
//Jerker
 
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