Sharpening LC200N (Captioned)

[@danielsevell5732]

Very helpful video for those learning the process. Thanks

[@EngineersPerspective701]

Glad to hear it!

[@MrEric0822]

Curious why you don’t deburr on first stone.

[@EngineersPerspective701]

LC200N is super forgiving so I just decided not to this time. One of the many reasons I've been enjoying LC200N!

[@georgeyoung4292]

Great knife but i really really doubt its at 59hrc..BBB who is wizard in heat treatment got lc200n to 61hrc MAX..In production set up the hardest ive seen was 56+hrc..This stuff is not hard but its amazing , i have Spydiechef..

[@EngineersPerspective701]

LC200N is really growing on me! I haven't seen any rockwell tests on these but my estimate comes from comparing edge retention and feel on the stones. For edge retention I cut single wall cardboard with a 1" section until it no longer shaves arm hair. I've done 3 S30Vs from Benchmade and they were all in the 60 foot range (yes I know, different from Outpost 76 and others 🤷‍♂️). Benchmade 20-CV did the same and so did the LC200N. So my thoughts for all of them to be the same is they must be around 59HRc if Benchmade is hitting their advertised HRc ranges.Feels about 58-59HRc on the stones as well. Another thought is to compare it to Victorinox swiss army knives. Roughly the same carbide/nitride volume and the SAK is at 55-56HRc. Spyderco LC200N is definitely far and away superior in daily performance. So nothing absolute here but that's how I arrived at my conclusion! It's my belief that Spyderco really takes there time with LC200N, at least at Golden CO. Thoughts?

[@georgeyoung4292]

@@EngineersPerspective701 There is a channel jcoolG19 who is basically the guy responsible for all the test for Outpost76, SSSteve, In the pocket and many others where ive seen multiple lc200n being tested never reach over 56.5HRC..Triple B with custom HT protocol reach max 61HRC..Swiss army is very diffetent brother (X50CRMOV15) is like 440C..It dont have N in it + its just standart ingot steel.. LC200N is PESR (PresurizedElectroSlagRemelting) and its much finer grain.. Im not metalurgist but im talking from only experience that it reach the finest edge of any steel.. U see its like XHP cause Its composition doesnt indicate and high performance but in use its surprising.. Honestly🙏 Spyderco's ive seen where all around 56hrc..Coincidently i was using it just today cutting cardboard (i was inspired by your video🙏😉), it didnt count but i would guess around 100-120feet..It barely did anything to the knife.. I will try to find the test but i think its JcoolG19 where he test Mules , that later went to Cedrik&Ada aka Pete.. Ive seen few more exemples on his channel🙏

[@EngineersPerspective701]

I hadn't caught the hardness numbers on those channels but I do watch them! I'll have to go back and review. Yes X50CrMoV15 and LC200N are extremely different by design but my point is the closeness in hardness and carbide/nitirde volume. X50 is reported by Larrin Thomas to be around 6vol% Chrome carbide (unsure what types) and LC200N is around 4.5vol% Cr2N so you'd expect close edge retention performance at the same hardness. This is why I think it's a decent comparison. In terms of fine microstructure it's right there with AEB-L witch is to say AMAZING! With that in mind, the retention numbers from Cedric and Ada mean that LC200N has to be much harder than Vic X50 steel to outperform it so significantly. I wouldn't think fine microstructure can cover that kind of ground especially looking at AEB-L with 6vol% Cr carbide and equally fine microstructure. Pete does shows 57HRc avg for LC200N so maybe the X50 is just baby poop soft for that comparison? There is theory that Cr nitrides are harder and add to edge retention more than Cr carbides but I don't think that's fully fleshed out. From Outpost 76 and SSSteve they got 142ft avg fine edge retention which once again doesn't make sense with 57HRc. That's in line with several tests of S3OV, S35VN, BD1N, etc that were all tested harder than 58-60HRc. So I'm unsure what exactly is going on but things aren't adding up for me. I guess my thoughts are: 1) Are Cr Nitrides the contributing factor? (I'm doubtful that Cr nitrides will make 57HRc LC200N fine edge last as long as 58-60HRc S30V with 10.5% M7C3 and 4% VC) 2) Is the nitride volume estimate from Larrin really low? 3) Are the tested LC200N models all Taichung (i.e. Spydiechef)?

[@georgeyoung4292]

@@EngineersPerspective701 I will find the videos with test being done and send the time stamp.. I know it doesnt make sense🤷‍♂️ It must have something to do with N content (without it , its just mediocre SS) I'll hit with the time stamp..

[@georgeyoung4292]

@@EngineersPerspective701 kzbin.info/www/bejne/n6iYgYSYqMhrbKM There , time stamp 6:30 56.5HRC

[@nandayane]

kicking myself for not buying a waterway when I could buy them.

[@EngineersPerspective701]

Are they discontinued? Or just waiting for another run of them?

[@nandayane]

@@EngineersPerspective701 I don’t know, but I stopped being able to find them anywhere around early march.

[@name5949]

I really appreciate you sharing this with us but i should not be looking at this as it's not a Swiss army knife/multi tool 🤫

[@EngineersPerspective701]

Lol, I won't tell if you don't tell.

[@name5949]

@@EngineersPerspective701 yea buddy 🙏😆