Best Edge Performance Steel between these choices?

Discuss Spyderco's products and history.

Which is Best

K390
21
27%
Maxamet
18
23%
Rex 45
19
24%
Cruwear
20
26%
 
Total votes: 78

blendergasket
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Re: Best Edge Performance Steel between these choices?

Postby blendergasket » Sun Jan 12, 2020 9:47 am

My choice goes to K390. I have experience with K390 and Cruwear. I haven't tried the other two. Rex 45 is inaccessible, and maxamet scares me as I chip my knives often. I haven't chipped my K390 urban yet (knock on wood) and it holds an edge way longer than cruwear. I love sharpening cruwear but I am now starting school again, so luxuries like frequent sharpening are being pushed aside. Because of this I will likely be selling my cruwear pm2 and replacing it with a K390 one.

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Bloke
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Re: Best Edge Performance Steel between these choices?

Postby Bloke » Sun Jan 12, 2020 5:55 pm

Shawn my learned friend, in my daily use I have trouble telling any steels apart.

I have to look for tough and abrasive stuff to cut and a few cuts of anything with any of the steels above on a given day tells me little.

In all honesty I think if you put the four steels above in unmarked identical knives so I didn’t know which was which I’d have to do a Hell of a lot of cutting with each before I’d attempt to guess which was which. I reckon I’d probably have more chance identifying between them if I were to sharpen them.

Anyhow, I only have Spyderco Maxamet in a couple of Mules and Rex 45 in a Military and I can’t say I’ve pushed either. The Mule’s geometry gives it the cutting advantage over the Military so, plucked if I know! :rolleyes: :)
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JuPaul
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Re: Best Edge Performance Steel between these choices?

Postby JuPaul » Sun Jan 12, 2020 8:41 pm

Can someone tell me where the poll numbers are at? I can't see them unless I vote, and since I don't have any experience with maxamet, and only limited experience with k390, I can't give an honest opinion. Still, I'm curious to know how the poll is shaping up.
- Julia

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Bloke
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Re: Best Edge Performance Steel between these choices?

Postby Bloke » Sun Jan 12, 2020 8:47 pm

JuPaul wrote:
Sun Jan 12, 2020 8:41 pm
Can someone tell me where the poll numbers are at? I can't see them unless I vote, and since I don't have any experience with maxamet, and only limited experience with k390, I can't give an honest opinion. Still, I'm curious to know how the poll is shaping up.
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A day without laughter is a day wasted. ~ Charlie Chaplin

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Larrin
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Re: Best Edge Performance Steel between these choices?

Postby Larrin » Sun Jan 12, 2020 9:05 pm

JuPaul wrote:
Sun Jan 12, 2020 8:41 pm
Can someone tell me where the poll numbers are at? I can't see them unless I vote, and since I don't have any experience with maxamet, and only limited experience with k390, I can't give an honest opinion. Still, I'm curious to know how the poll is shaping up.
Push the “View Results” button.
http://www.KnifeSteelNerds.com - Steel Metallurgy topics related to knives

JuPaul
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Re: Best Edge Performance Steel between these choices?

Postby JuPaul » Sun Jan 12, 2020 9:34 pm

Larrin wrote:
Sun Jan 12, 2020 9:05 pm
JuPaul wrote:
Sun Jan 12, 2020 8:41 pm
Can someone tell me where the poll numbers are at? I can't see them unless I vote, and since I don't have any experience with maxamet, and only limited experience with k390, I can't give an honest opinion. Still, I'm curious to know how the poll is shaping up.
Push the “View Results” button.
I'm an idiot. :o :rolleyes:
- Julia

"Be excellent to each other." - Bill S. Preston, Esq.

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emanuel
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Re: Best Edge Performance Steel between these choices?

Postby emanuel » Mon Jan 13, 2020 5:47 am

I really love the edge strength of Rex 45 at the hardness Spyderco runs it at, but I've voted Maxamet since it's the steel that has more use for me due to what I usually cut with my knives, so its edge performance is better. If I would cut something less abrasive, Rex 45 would be my choice out of these. But K390 is close too! So hard to pick, such great steels! Cruwear is good too but its lower hardness is definitely something that impacts its edge performance, especially if toughness isn't a requirement for your use.

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Cambertree
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Re: Best Edge Performance Steel between these choices?

Postby Cambertree » Mon Jan 13, 2020 6:19 am

K390 for me. It seems to hold a fine edge very well, while being very responsive to sharpening and touchups, and a nice balance of toughness and strength in that I've never really had any issues with either rolling or chipping of fine, acute edges. It seems to be able to go pretty thin behind the edge too. And I kinda like a knife that patinas and shows some history and character on the blade, but still doesn't rust too easy.

Cruwear's probably the king of balanced qualities in a knife steel to me, I could happily have it become Spyderco's 'baseline' steel, and I'd probably buy a lot more models which now only come in S30V.

I need to use Maxamet a bit more, but I like it just fine in my Para 3.

I missed out on REX45 but many of my 'worker' knives are HAP40.

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jpm2
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Re: Best Edge Performance Steel between these choices?

Postby jpm2 » Wed Jan 15, 2020 4:03 pm

Cambertree wrote:
Mon Jan 13, 2020 6:19 am
I missed out on REX45 but many of my 'worker' knives are HAP40.
I have several of the first run hap40 sprints, and even though the composition is about the same as rex45, I'm guessing the heat treatments are what make them completely different (to me). Maybe this changed in the later runs?

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Deadboxhero
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Re: Best Edge Performance Steel between these choices?

Postby Deadboxhero » Tue Jan 21, 2020 9:54 pm

I've been really enjoying getting other people's thoughts and opinions, you know at the end of the day,

the "user" is the biggest variable of all.


There is no one size fits all.

This four steels have had the best edge performance Ive seen in production knives in the available steels production companies have access to up to this moment. (Excluding Customs and more Exotic steels)
They uniquely had some of the best sharpening, edge taking, edge holding and durability/stability at a consequence to corrison resistance since there is always a trade off.

Over the past couple years, they have been regulated to Sprint runs for people to try out and have rejuvenated the folks that have been dying for steels more catered to edge freeks.


It's surprising to see all the votes so close yet maybe not since these steels are different things to different people and everyone can enjoy them or a certain aspect of one over the other and vice versa.
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JMM
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Re: Best Edge Performance Steel between these choices?

Postby JMM » Tue Jan 21, 2020 10:51 pm

It is indeed interesting to see these numbers, not at all what I would have guessed by any stretch.... I wonder if changing maxamet for 4v would offer different results (that would make this list my fave 4) -- certainly given it's much more limited availability. It really is awesome to see how each steel works (or doesn't) for different folks doing different things, having different sharpening skills, experience, etc, etc. Thanks BBB for creating/posting, super cool!


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