Who did the testing out of curiosity?Steeltoez83 wrote: ↑Sat Aug 08, 2020 6:41 amHere 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.
Kurt did the testing.ZrowsN1s wrote: ↑Sun Aug 09, 2020 2:12 amWho did the testing out of curiosity?Steeltoez83 wrote: ↑Sat Aug 08, 2020 6:41 amHere 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.
Wow! That's significantly harder than other k390 Spyderco has put out. I'm curious to see how people like it.
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.
Bump. I think this is important information.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.
https://knifesteelnerds.com/2019/06/24/ ... -it-works/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.
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.Naperville wrote: ↑Wed Sep 16, 2020 7:40 pmThis is an excellent effort, but I do not think that it is up to date. Is the current up to date spreadsheet?
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.Cambertree wrote: ↑Wed Sep 30, 2020 12:06 amGood stuff.![]()
Are you getting any readings for the rest of the current K390 Seki series, besides the Delica?
Great, thanks for your contributions.EngDevGr3 wrote: ↑Wed Sep 30, 2020 10:41 amI 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.Cambertree wrote: ↑Wed Sep 30, 2020 12:06 amGood stuff.![]()
Are you getting any readings for the rest of the current K390 Seki series, besides the Delica?
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