What companies use Sleipner steel?

Ulf Krogstad

Ulf Krogstad

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Nov 19, 2013
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What other companies use Sleipner steel besides Lionsteel and DPX? Very much interested in this steel and wandering if other companies offer blades made of it.
 
Uddeholm Sleipner is used in some of the LionSteel-made knives by Pohl Force, Knife Research and DPx Gear.

When LionSteel designed the SR-1 they made prototypes of both M390 and Sleipner. Sleipner won out on edge retention. Although it's not a stainless steel it has good corrosion resistance.

molletta said:
M390 was tried for SR-1. In test Sleipner have better edge retention.

Here a picture of m390 sr-1 used for test. Read under lionsteel.

IMG_0588.jpg
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both M390 and Sleipner. Sleipner won out on edge retention.

This is very surprising. Why don't we see more of this steel used "locally?"
 
Sleipner is a tool steel, it is used for making blades that must cut other steel. It is available with thickness that are over than 10 mm.
When I started to use it for SR1 I found some pieces with 8 mm of thikness, the blade of SR1 is 4.5 mm.
Now Uddeholm make a special thickness only for Lionsteel, but in order to have them I must buy a lot of quintals, a rolling just for us.
This one is the reason that it is not easy to have it for the small knife industries.

Anyway, Sleipner is the best steel for LionSteel. I do hope that in the near future have enough power to have in stock all the thicknees nedeed for all LionSteel knives.

Gianni, LionSteel owner.
 
Sliepner has higher edge retention than M390? I honestly would not have assumed that. What hardness is it treated to?
 
D2/CPM-D2 can get into supersteel levels of edge-holding and toughness with the proper handling and heat-treat/cryogenic processes. Since Sleipner is an improved variation of D2, I'm not surprised with its level of performance. I have a custom in CPM-D2, and I can say with utmost confidence that performance is way up there. Just needs a light stropping once in a while.
 
RamZar said:
...When LionSteel designed the SR-1 they made prototypes of both M390 and Sleipner. Sleipner won out on edge retention. Although it's not a stainless steel it has good corrosion resistance.
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I am very curious about the test, do you have any info what types of knives, what kind of test, etc? As it is, Sleipner has nothing over M390 in terms of wear resistance or working hardness. So, what kind of test was it?

Comeuppance said:
Sliepner has higher edge retention than M390? I honestly would not have assumed that.
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Yeah, I am baffled as well. If it was something like what knife research did with Vanadis 4E HTed at 60 HRC, i.e. things done not optimal for specific alloy/test/task then it might be the case.

shqxk said:
Sleipnir won over M390 at edge holding is nothing surprise at all...
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Can you elaborate on that? What does Sleipner has in it that would make it so obvious and natural to have better edge holding over M390, without even specifying what kind of edge holding was it, slicing, push cutting, thin edge, thick edge, abrasive materials or not, or whatever...
As you state it, Sleipner has to be better than M390 in all aspects, all types of cutting? Why it is no surprise at all? Comparing Sleipner vs. M390 steel compositions, I'm not sure I can see easily what prompts your conclusion.
At this point, I just want to know what what prompts such confidence on your part in Sleipner steel.

gooeytek said:
D...Since Sleipner is an improved variation of D2, I'm not surprised with its level of performance.
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Improved for what purpose? D2 can reach 64 HRC and has more carbide formers(wear resistance) + is more corrosion resistant than Sleipner. So, while Sleipner can have better toughness and chipping resistance, can we really make blanket statement that Sleipner is better than D2 for all knives?
And considering nobody ever told us in this thread what the test was, how can you make assumptions on what exactly was the "level of performance"? Based on what info? Is it just RamZar's "Sleipner won over M390"? Can we have more details?
Personally I have nothing against Slipper, or any other alloy, as long as it performs :)

I am a bit skeptical accepting blanket statements without details though.
 
Gator97,

See the thread LionSteel Steels.

Ask Molletta (Michele Pensato) who's the designer of many knives for LionSteel and Knife Research. He also does the heat treat as well steel selection and testing of M390 vs. Sleipner.
 
Also see Uddeholm's info concerning Sleipner. I don't have any blades in Sleipner, but I do have several in CPM-D2 and M390. I tend to throw the D2 blades against tougher chores like carving ABS and thermoplastic stock, wood (dried or green), even just breaking down cardboard shipping boxes and packing material. I feel like I have to baby M390 but that might have to do more with the blade thickness and edge profile (Military). If Sleipner was developed to be an improved D2, then my opinion on it, although not backed by personal real-world use, is that I'm not surprised about its performance. The thing with D2 is that it isn't a simple heat-treat protocol from what I've read.
 
 
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Ramzar, I've checked the thread you pointed out,thanks, but unfortunately there's just a one liner about Slepner being better.
I've seen Uddeholm links above more than once, I periodically scour all major steel maker sites to maintain my own steel database up to date.

RamZar said:
There's also Bohler's K110 (D2) which is a "D2 produced with Bohler's cross-rolling technology that produces a fine, uniform grained steel. The best D2 available for hand knives."...
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Well, every steel maker, and every product maker for that mater will claim their product is the best :) Same for technologies they use for making steel and so on.
 
Gator97 said:
Ramzar, I've checked the thread you pointed out,thanks, but unfortunately there's just a one liner about Slepner being better.
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I suggest you ask Molletta in that thread about edge retention of Sleipner vs. M390.

Gator97 said:
Well, every steel maker, and every product maker for that mater will claim their product is the best :) Same for technologies they use for making steel and so on.
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That's why I put it in quotes.
 
Gator97,

In that LionSteel Steels thread I posed some related questions about Sleipner to Molletta and he responded. Also, updated post# 1 with a new chart from you and data sheet links.
 
Gator97 said:
RamZar,
Thanks for the update, I've checked links and Niolox seems to be outdated? At least I can't find niolox in the destination table. LO-R 4153(W-Nr 1.4153) is there, but that's not Niolox(W-Nr 1.4153.03), aka SB1.
Here - Niolox steel composition and reference data.
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Correct. You warned me about broken or moved links. :)

Niolox stainless steel (LO-R 4153.03) on the Lohmann website is here now: http://www.lohmann-stahl.de/en/werkstoffe/sonderanalysen

No data sheets: C 0.8, Cr 12.7, Mo 1.1, V 0.9, Nb 0.7
 
Now you know why do I have to revisit steel maker's sites few times a year and why I dislike embedding their links in the database :)
 
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