HRC Database

Discuss Spyderco's products and history.
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Abyss_Fish
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Re: HRC Database

Postby Abyss_Fish » Sat Aug 08, 2020 9:38 am

would love to see someone poke a SpyOpera, I've heard horror stories about Lionsteel's heat treatment...
I require more lc200n and thinner grinds

Current collection: Watu, Rhino, Native G10 salt, Waterway, K390 Ladybug, Caribbean, Spydiechef

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ZrowsN1s
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Re: HRC Database

Postby ZrowsN1s » Sun Aug 09, 2020 2:12 am

Steeltoez83 wrote:
Sat Aug 08, 2020 6:41 am
Here are the results of 48 knives I had tested for Rockwell hardness. Some were poked once, some 3x but I'm listing the overall average in order of softest to the hardest. In my pocket there is a rex45 pm2 that tested 66 from previous owner. So 49 in total.
Who did the testing out of curiosity?
I ❤ The POLICE :spyder:

Steeltoez83
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Re: HRC Database

Postby Steeltoez83 » Sun Aug 09, 2020 2:38 am

ZrowsN1s wrote:
Sun Aug 09, 2020 2:12 am
Steeltoez83 wrote:
Sat Aug 08, 2020 6:41 am
Here are the results of 48 knives I had tested for Rockwell hardness. Some were poked once, some 3x but I'm listing the overall average in order of softest to the hardest. In my pocket there is a rex45 pm2 that tested 66 from previous owner. So 49 in total.
Who did the testing out of curiosity?
Kurt did the testing.

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Re: HRC Database

Postby Steeltoez83 » Sun Aug 09, 2020 2:44 am

Screenshot_20200809-034037_YouTube.jpg
One of my test videos on kurts channel. Sorry I'm not tech savvy on how to link videos.

racerx454
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Re: HRC Database

Postby racerx454 » Sat Aug 15, 2020 4:08 pm

For what it is worth, SteveMidwest reported 64.2 HRC for his K2 10V.

viewtopic.php?t=86268

EngDevGr3
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Re: HRC Database

Postby EngDevGr3 » Tue Sep 01, 2020 6:06 pm

I just got a Delica k390. The results were a bit surprising. It was poked twice, with the results of 66.4 and 66.5 HRC

JuPaul
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Re: HRC Database

Postby JuPaul » Tue Sep 01, 2020 7:39 pm

EngDevGr3 wrote:
Tue Sep 01, 2020 6:06 pm
I just got a Delica k390. The results were a bit surprising. It was poked twice, with the results of 66.4 and 66.5 HRC
Wow! That's significantly harder than other k390 Spyderco has put out. I'm curious to see how people like it.
- Julia

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

dan31
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Re: HRC Database

Postby dan31 » Tue Sep 01, 2020 8:17 pm

66 HRC, that’s tempting. I thought I was done.

Karl_H
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Re: HRC Database

Postby Karl_H » Tue Sep 01, 2020 9:11 pm

EngDevGr3 wrote:
Tue Sep 01, 2020 6:06 pm
I just got a Delica k390. The results were a bit surprising. It was poked twice, with the results of 66.4 and 66.5 HRC
I am also curious. If these results are accurate, it makes me wonder about the heat treatment and toughness. I believe the previous K390 results were about 65 HRC, which is more in-line with Bohler data sheet.

EngDevGr3
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Re: HRC Database

Postby EngDevGr3 » Tue Sep 01, 2020 9:57 pm

I will definitely be using and testing it this week. I may have one of the other guys re check it to make sure.I have had 2 different police 4s and one was right at 66 and the other 64.2. Most of the Police 4s were right in the 65 range from what I have seen. The PM2 I had in k390 was 63 something, which seems to be standard for that batch.

EngDevGr3
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Re: HRC Database

Postby EngDevGr3 » Tue Sep 01, 2020 9:58 pm

The Manix 2 Xl dlc in M4 was tested as well. 2 hits both at 63.3.

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Sharp Guy
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Re: HRC Database

Postby Sharp Guy » Tue Sep 01, 2020 10:32 pm

dan31 wrote:
Tue Sep 01, 2020 8:17 pm
...I thought I was done.
Ha! I've said that a few times before
Of all the things I've lost I miss my mind the most!

The Meat man
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Re: HRC Database

Postby The Meat man » Wed Sep 16, 2020 3:29 pm

The Meat man wrote:
Sat Jan 11, 2020 9:03 pm

Don't know how I forgot Larrin's excellent article on H-1. In the article he had a Spyderco Salt measured and found it to vary from about 55-57 HRC. Might want to add that to the list.
Bump. I think this is important information.

From Larrin's website:
I was sent an analysis of H1 in a Spyderco Salt by Sandvik. They did not find an increase in hardness at the edge, in fact they found a decrease. The plot below is what I was sent, where the value at about 55 Rc was 0.4 mm (0.16″) from the edge. Unfortunately I was not provided an x-asis to see the distances between the measurements. However, the ~57 Rc of the steel is comparable to the value reported above from Crucible.
https://knifesteelnerds.com/2019/06/24/ ... -it-works/
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"What is a man profited, if he shall gain the whole world, and lose his own soul?"

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Naperville
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Re: HRC Database

Postby Naperville » Wed Sep 16, 2020 7:40 pm

This is an excellent effort, but I do not think that it is up to date. Is the current up to date spreadsheet?
Spyderco Collection: Military (S110V), Bob Lum Darn Dao(CPM-154), Yojimbo 2 (1 in S30V & 2 in 20CV), Sustain(20CV), Native 5(Maxamet), Jumpmaster 2(H1), Province(4V). SHORT LIST: CF Shaman(S90V), Native Chief, Street Bowie(4V at 60+ HRC), Nightstick, Yojumbo.

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Accutron
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Re: HRC Database

Postby Accutron » Thu Sep 17, 2020 5:20 am

Naperville wrote:
Wed Sep 16, 2020 7:40 pm
This is an excellent effort, but I do not think that it is up to date. Is the current up to date spreadsheet?
That's the 'official' spreadsheet for the group centered around the HRC testing efforts of Kurt (jcoolG19). The table is periodically updated, but the spreadsheet lags behind the testing by some number of months. I'm not sure, but I think LTK may maintain the spreadsheet.

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Re: HRC Database

Postby AlexRus » Mon Sep 21, 2020 7:21 am

EngDevGr3 wrote:
Tue Sep 01, 2020 9:58 pm
The Manix 2 Xl dlc in M4 was tested as well. 2 hits both at 63.3.
Not bad)

EngDevGr3
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Re: HRC Database

Postby EngDevGr3 » Tue Sep 29, 2020 10:21 pm

The DLT Delica OD green DLC cruwear tested at 62.1 HRC.

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Cambertree
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Re: HRC Database

Postby Cambertree » Wed Sep 30, 2020 12:06 am

EngDevGr3 wrote:
Tue Sep 29, 2020 10:21 pm
The DLT Delica OD green DLC cruwear tested at 62.1 HRC.
Good stuff. :cool:

Are you getting any readings for the rest of the current K390 Seki series, besides the Delica?

EngDevGr3
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Re: HRC Database

Postby EngDevGr3 » Wed Sep 30, 2020 10:41 am

Cambertree wrote:
Wed Sep 30, 2020 12:06 am
EngDevGr3 wrote:
Tue Sep 29, 2020 10:21 pm
The DLT Delica OD green DLC cruwear tested at 62.1 HRC.
Good stuff. :cool:

Are you getting any readings for the rest of the current K390 Seki series, besides the Delica?
I plan on getting the k390 endura when it is released. I may get the k390 endela as well. I am going to test everything I get now, so I will keep posting them as I get them.

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Cambertree
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Re: HRC Database

Postby Cambertree » Wed Sep 30, 2020 8:11 pm

EngDevGr3 wrote:
Wed Sep 30, 2020 10:41 am
Cambertree wrote:
Wed Sep 30, 2020 12:06 am
EngDevGr3 wrote:
Tue Sep 29, 2020 10:21 pm
The DLT Delica OD green DLC cruwear tested at 62.1 HRC.
Good stuff. :cool:

Are you getting any readings for the rest of the current K390 Seki series, besides the Delica?
I plan on getting the k390 endura when it is released. I may get the k390 endela as well. I am going to test everything I get now, so I will keep posting them as I get them.
Great, thanks for your contributions. :)

It would be interesting to eventually have data points for the whole array of different sized blades in a Seki release in a single steel grade. I wonder if there is much difference between the smaller blades like the Manbug and Dragonfly, compared to, say, the Endura, Stretch and Police?


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