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by Larrin
Thu Dec 10, 2020 9:09 am
Forum: Spyderco General Discussion
Topic: VG-MAX- Tell Shun to give it up
Replies: 13
Views: 714

Re: VG-MAX- Tell Shun to give it up

The composition looks way too rich for good toughness for an ingot steel. The wear resistance would be pretty high for an ingot steel of course.
by Larrin
Wed Dec 09, 2020 9:31 pm
Forum: Spyderco General Discussion
Topic: VG-MAX- Tell Shun to give it up
Replies: 13
Views: 714

Re: VG-MAX- Tell Shun to give it up

If VG10 is 9 better than VG1, how much better is Max than 10?
by Larrin
Tue Dec 08, 2020 7:56 pm
Forum: Spyderco General Discussion
Topic: Vanadis 8 - Better than CPM-10V
Replies: 28
Views: 1175

Re: Vanadis 8 - Better than CPM-10V

Maybe Superman’s body but just the glasses? Superman was the “Man of Steel”. Does this make you the “Dr. of Steel?” I believe I was made a doctor of steel by my PhD diploma. Lol. Yes, I saw that you were a PHD thus the genesis of the joke. I would want to trademark the “Dr. of Steel” if I was in yo...
by Larrin
Tue Dec 08, 2020 7:52 pm
Forum: Spyderco General Discussion
Topic: Book on metallurgy and knifemaking by Larrin Thomas
Replies: 114
Views: 7214

Re: Book on metallurgy and knifemaking by Larrin Thomas

Rp5 wrote:
Tue Dec 08, 2020 5:50 pm
Well, I still say Knife Book of the Year.

I haven't read any other knife books this year, so it's clearly ahead of the pack.
Thanks!
by Larrin
Tue Dec 08, 2020 2:38 pm
Forum: Spyderco General Discussion
Topic: Vanadis 8 - Better than CPM-10V
Replies: 28
Views: 1175

Re: Vanadis 8 - Better than CPM-10V

Fireman wrote:
Tue Dec 08, 2020 1:44 pm
Maybe Superman’s body but just the glasses?
Superman was the “Man of Steel”. Does this make you the “Dr. of Steel?”
I believe I was made a doctor of steel by my PhD diploma.
by Larrin
Tue Dec 08, 2020 12:43 pm
Forum: Spyderco General Discussion
Topic: Book on metallurgy and knifemaking by Larrin Thomas
Replies: 114
Views: 7214

Re: Book on metallurgy and knifemaking by Larrin Thomas

Shouted out as knife book of the year for 2020 by Nick Shabazz. (Not an official category, but it did get a shout-out.) He included it in the general "other" category but then rather giving the book its own category he referred to it as "other" within the category. So it is an "other" within the "o...
by Larrin
Tue Dec 08, 2020 6:51 am
Forum: Spyderco General Discussion
Topic: Vanadis 8 - Better than CPM-10V
Replies: 28
Views: 1175

Re: Vanadis 8 - Better than CPM-10V

Fireman wrote:
Mon Dec 07, 2020 10:48 pm
Larrin
Please sell T-shirts. I would buy one.
Nerds of Steel!
Superman with the clark kent glasses but geeky
I will think about it
by Larrin
Mon Dec 07, 2020 11:27 am
Forum: Spyderco General Discussion
Topic: Vanadis 8 - Better than CPM-10V
Replies: 28
Views: 1175

Re: Vanadis 8 - Better than CPM-10V

Looks like a winner. I'd still rather see some Vanadis 4 Extra folders myself, but thats me. CPM-4V is popular enough that there is no reason to not throw out a few V4E blades to masses. I didn’t say there is no use for Vanadis 4 Extra. I said that Vanadis 8 is better than 10V. There is a reason I ...
by Larrin
Mon Dec 07, 2020 11:20 am
Forum: Spyderco General Discussion
Topic: Vanadis 8 - Better than CPM-10V
Replies: 28
Views: 1175

Vanadis 8 - Better than CPM-10V

New article about Uddeholm Vanadis 8, a recent steel developed to compete with CPM-10V. Uddeholm claims a massive 3.7x improvement in toughness over 10V! I tested their toughness claims as well as measured hardness and edge retention. And I wrote about the history and development that led to Vanadis...
by Larrin
Thu Nov 26, 2020 4:36 pm
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

sal wrote:
Tue Nov 24, 2020 10:48 pm
Hi Larrin,

Excellent, as usual. I think that as a forum group, we have many here that are truly interested in blade steels and why they do what they do.

sal
And that's exactly why I share here!
by Larrin
Thu Nov 26, 2020 4:35 pm
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

Bill1170 wrote:
Tue Nov 24, 2020 8:21 pm
You did a good job using language, which is linear/sequential, to describe the complex interrelated properties of various alloying elements, which is most definitely not strictly linear. That is tough to map onto language.
Thanks!
by Larrin
Tue Nov 24, 2020 2:26 pm
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

I've had S110v at rc 64.5 and the highest S90V hardness I've tried was around rc 59 ish. I had always thought the S110v was designed to perform at the higher hardnesses. It's one of the few stainless steels I really respect and has been since I bought a high performing custom from Phil at http://ww...
by Larrin
Tue Nov 24, 2020 12:19 pm
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

JD Spydo wrote:
Tue Nov 24, 2020 12:11 pm
It's been nothing short of incredible to see how blade steels are evolving since I became a devout Spyderhead with my first one back in 1995. Since then it's been astounding to see the progress made in this area of technology.
Hopefully the advancements keep coming!
by Larrin
Tue Nov 24, 2020 10:28 am
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

"However, this steel has high hardness and corrosion resistance which can mean excess retained austenite which sometimes leads to inflated toughness values. This behavior was seen with M390 when austenitizing too high. And with some users reporting difficulty in deburring S110V (usually means high ...
by Larrin
Tue Nov 24, 2020 9:21 am
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

Re: S110V Steel - History and Properties

Thanks guys I'm glad you liked it. Lots of semi-complicated descriptions of alloy element effects so I'm glad it is making sense to some people.
by Larrin
Mon Nov 23, 2020 10:06 am
Forum: Spyderco General Discussion
Topic: S110V Steel - History and Properties
Replies: 22
Views: 1008

S110V Steel - History and Properties

A new article finishing off the series on very high edge retention stainless knife steels. I wrote about the history of the steel, the design including why it has cobalt and niobium, and then show my tests on the steel including hardness, corrosion resistance, toughness, and edge retention. I also c...
by Larrin
Mon Nov 23, 2020 6:47 am
Forum: Spyderco General Discussion
Topic: Which models bring out the best of each steel?
Replies: 21
Views: 794

Re: Which models bring out the best of each steel?

Yes I think a steel like 4V need a super thin edge and high hardness to show off its toughness. Low toughness steels like ZDP-189 start to have chipping issues.
by Larrin
Tue Nov 03, 2020 8:44 am
Forum: Spyderco General Discussion
Topic: Spy27 Corrosion Resistance
Replies: 8
Views: 543

Re: Spy27 Corrosion Resistance

Has anyone used this steel enough to get an idea of how corrosion resistant it is? Compared to s30v for example? Reading about the steel I would guess that the higher nitrogen, lower carbon makeup might offer some improvement over s30v in this area but I have not had the chance to use the steel yet...
by Larrin
Fri Oct 30, 2020 10:31 am
Forum: Spyderco General Discussion
Topic: M398 Steel Testing – Edge Retention, Toughness, and More
Replies: 30
Views: 1155

Re: M398 Steel Testing – Edge Retention, Toughness, and More

So if I read correctly, at 1 point higher on the HRC scale, s125v is barely outdone by m398 in toughness, while holding an edge for reasonably longer. I feel like at that higher end wouldn't more folks be interested in s125v? Also with lower carbide volume, it may be less tough, bit perhaps it will...
by Larrin
Wed Oct 28, 2020 11:00 am
Forum: Spyderco General Discussion
Topic: M398 Steel Testing – Edge Retention, Toughness, and More
Replies: 30
Views: 1155

Re: M398 Steel Testing – Edge Retention, Toughness, and More

sal wrote:
Wed Oct 28, 2020 8:30 am
Thanx Larrin,

Very informative, as usual.

FYI, we have almost 5,000 lbs coming in different thicknesses.

sal
I hope it works out well!

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