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by Larrin
Mon Jul 13, 2020 8:37 pm
Forum: Spyderco General Discussion
Topic: 13 Myths about Heat Treating Knives
Replies: 26
Views: 1397

Re: 13 Myths about Heat Treating Knives

Serrated edges have poorer cutting ability but superior edge retention when slicing. Edit: data is here - https://knifesteelnerds.com/2018/11/26/steel-edge-retention2/ Larrin, " serrated edges having poorer cutting ability when slicing" is so contrary to my (admittedly total layman and non scientif...
by Larrin
Mon Jul 13, 2020 3:00 pm
Forum: Spyderco General Discussion
Topic: 13 Myths about Heat Treating Knives
Replies: 26
Views: 1397

Re: 13 Myths about Heat Treating Knives

I liked your article Larrin. I have an unrelated idea for you and your CATRA machine. On Facebook in the Vehement Syndicate there is a discussion regarding serrated blades. You do not have to go looking for the article, but you could settle the raging debate on serrated blades. - Are serrated blade...
by Larrin
Mon Jul 13, 2020 11:18 am
Forum: Spyderco General Discussion
Topic: 13 Myths about Heat Treating Knives
Replies: 26
Views: 1397

Re: 13 Myths about Heat Treating Knives

Thanks for the great morning read with coffee, Larrin. Another well done article, woven together with several others of like quality. My first question: What is the effect of carbon content on retained austenite? My belief suggests that unless the carbon content is over the eutectic point, and othe...
by Larrin
Mon Jul 13, 2020 11:14 am
Forum: Spyderco General Discussion
Topic: 13 Myths about Heat Treating Knives
Replies: 26
Views: 1397

Re: 13 Myths about Heat Treating Knives

Great article as always. I have one question regarding number 2. ,,Backyard bladesmith discovered a new super heat treatment that can’t be matched,, I think you know about one blade forum member BluntCut (I think he is also here) and his crystal weaving foundation heat treat (or something like that...
by Larrin
Mon Jul 13, 2020 9:12 am
Forum: Spyderco General Discussion
Topic: 13 Myths about Heat Treating Knives
Replies: 26
Views: 1397

13 Myths about Heat Treating Knives

A new article about various heat treating myths, covering things like the effect of heat treatment on knife performance, whether industry heat treatments are relative to knives, cryogenic processing, and heat treating simple carbon steels vs high alloy and stainless steels. https://knifesteelnerds.c...
by Larrin
Sat Jun 27, 2020 3:45 pm
Forum: Spyderco General Discussion
Topic: S30V Support Club
Replies: 101
Views: 6648

Re: S30V Support Club

Spydergirl88 wrote:
Sat Jun 27, 2020 3:36 pm
Larrin wrote:
Sat Jun 27, 2020 3:01 pm
I wouldn’t call S30V vanilla. It’s more like S30V is cookies and cream but your local ice cream enthusiast group keeps saying they’ve moved on to rocky road.
In your opinion, which steel would you consider vanilla?
420 or 1095.
by Larrin
Sat Jun 27, 2020 3:01 pm
Forum: Spyderco General Discussion
Topic: S30V Support Club
Replies: 101
Views: 6648

Re: S30V Support Club

I wouldn’t call S30V vanilla. It’s more like S30V is cookies and cream but your local ice cream enthusiast group keeps saying they’ve moved on to rocky road.
by Larrin
Thu Jun 25, 2020 3:58 pm
Forum: Spyderco General Discussion
Topic: What makes a metal a metal
Replies: 25
Views: 1681

Re: What makes a metal a metal

dj moonbat wrote:
Thu Jun 25, 2020 1:57 pm
What I want to know is how they make those shiny things you put around a Hot Pocket to make ‘em crispy without using metal.
I think "crispy" may be a bit of an exaggeration.
by Larrin
Thu Jun 25, 2020 9:17 am
Forum: Spyderco General Discussion
Topic: What makes a metal a metal
Replies: 25
Views: 1681

Re: What makes a metal a metal

I honestly don’t remember spending much time on defining what a metal is in materials or metallurgy courses. Maybe it is a question more chemists or physicists spend time on.
by Larrin
Thu Jun 25, 2020 5:16 am
Forum: Spyderco General Discussion
Topic: What makes a metal a metal
Replies: 25
Views: 1681

Re: What makes a metal a metal

I didn’t understand from this article what they were trying to do exactly. Defining what a metal is Is fuzzy because of all the different definitions used, most elements on the periodic table are in fact metals but there are lots of fuzzy boundaries. A journal article would probably make more sense....
by Larrin
Sat Jun 20, 2020 4:15 pm
Forum: Spyderco General Discussion
Topic: Question about ZDP189
Replies: 15
Views: 900

Re: Question about ZDP189

I just have one knife in ZDP-189, a saber ground Delica. I've never had an issue with ZDP-189 corrosion resistance. After reading so many posts here about its lesser resistence and Larrin's article I made a series of unscientific kitchen counter tests: 1 hour coated with a fine layer of mustard - n...
by Larrin
Sat Jun 20, 2020 4:12 pm
Forum: Spyderco General Discussion
Topic: I do not like LC200N *rant*
Replies: 52
Views: 3538

Re: I do not like LC200N *rant*

I think it strikes a pretty good balance of properties along with being highly corrosion resistant. It’s not as if it is a bad steel apart from its corrosion resistance.
by Larrin
Wed Jun 17, 2020 8:45 am
Forum: Spyderco General Discussion
Topic: Knife Steel EDC Performance Rankings
Replies: 100
Views: 4950

Re: Performance Rankings: Knife Steels

Trinity300 wrote:
Wed Jun 17, 2020 8:40 am
Larrin wrote:
Wed Jun 17, 2020 8:33 am
Trinity300 wrote:
Wed Jun 17, 2020 6:55 am
Larrin wrote:
Wed Jun 17, 2020 6:39 am

Perhaps if you linked to the datasheet you are trying to interpret someone could help you better.
Is this any good?
That data is not for H1 steel.
I thought it was weird they had two H1s listed. Is the other one accurate?
No. Those are carbide materials.
by Larrin
Wed Jun 17, 2020 8:33 am
Forum: Spyderco General Discussion
Topic: Knife Steel EDC Performance Rankings
Replies: 100
Views: 4950

Re: Performance Rankings: Knife Steels

If a manufacturer lists KV/Ku (J), is that indicative of the finished product or is it measured before it has been heat treated like Brinell hardness? Perhaps if you linked to the datasheet you are trying to interpret someone could help you better. Is this any good? That data is not for H1 steel.
by Larrin
Wed Jun 17, 2020 6:39 am
Forum: Spyderco General Discussion
Topic: Knife Steel EDC Performance Rankings
Replies: 100
Views: 4950

Re: Performance Rankings: Knife Steels

Trinity300 wrote:
Wed Jun 17, 2020 6:34 am
If a manufacturer lists KV/Ku (J), is that indicative of the finished product or is it measured before it has been heat treated like Brinell hardness?
Perhaps if you linked to the datasheet you are trying to interpret someone could help you better.
by Larrin
Wed Jun 17, 2020 5:11 am
Forum: Spyderco General Discussion
Topic: Determining the Best Budget Knife Steel
Replies: 38
Views: 1772

Re: Determining the Best Budget Knife Steel

Woodpuppy wrote:
Wed Jun 17, 2020 4:37 am
What is “fine blankable”? Does it mean knife blanks can be stamped out of sheets of material, as opposed to some other more time consuming process?
Yes.
by Larrin
Wed Jun 17, 2020 5:10 am
Forum: Spyderco General Discussion
Topic: Determining the Best Budget Knife Steel
Replies: 38
Views: 1772

Re: Determining the Best Budget Knife Steel

Thank you, Larrin, for yet another excellent write up. The 14C28N jumped out at me from the first chart, thanks to the impressive toughness for a stainless steel. I wonder if the nitrogen helps by constraining the grain size? You’ve probably covered this already in a different article. It seems tha...
by Larrin
Tue Jun 16, 2020 12:10 pm
Forum: Spyderco General Discussion
Topic: Determining the Best Budget Knife Steel
Replies: 38
Views: 1772

Re: Determining the Best Budget Knife Steel

I do agree it makes more sense in general to think of steels in categories rather than worrying about minute differences among steels that should be relatively similar.
by Larrin
Mon Jun 15, 2020 1:52 pm
Forum: Spyderco General Discussion
Topic: Determining the Best Budget Knife Steel
Replies: 38
Views: 1772

Re: Determining the Best Budget Knife Steel

I don’t think there is anything wrong with BD1N. I wouldn’t worry too much about edge retention differences between it and VG-10. They are in the same general category of edge retention.
by Larrin
Mon Jun 15, 2020 11:07 am
Forum: Spyderco General Discussion
Topic: Determining the Best Budget Knife Steel
Replies: 38
Views: 1772

Re: Determining the Best Budget Knife Steel

Thanks for another both very informative but still for layman like me well comprehendable article, Larrin! :) One point that puzzles me again (did so already in your previous article about edge retention): BD1N is worse in edge retention than VG10. This is really contrary to my personal (admittedly...

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