The stopping point was set to 1.5% of optimal. Holding off on the M4 Shaman then. The blade shape, a clip point in most spec sheets, has a nice gradual belly, and a very flat spine, once you’re past the *sharply jimped* thumb ramp. Sharpenability seems to be very similar imo, yet edge holding and apex strength is far in k390's favor. Eight trials were completed with each blade, edge retention calculated as the TCE or total cutting efficiency. Others liken it to the CPM M4 which is a premium tool steel with high Molybdenum content. Maybe the Shaman will come with K390!! Eccellente resistenza all’usura in combinazione con alta tenacità e resistenza alla compressione. Sharpenability seems to be very similar imo, yet edge holding and apex strength is far in k390's favor. M390 vs M4. M4 is still my benchmark, but K390 (and REX45) have really impressed me. Maybe you’ve had one… Some enthusiasts dubbed the K390 as the M4 killer, however, since it is harder, more wear-resistant, and holds its sharpness longer. A new one is much more aggressive than one that has been used a while and broken in. Thanks to John Dyess, Michael Foote, Xun Fan, and Mark Vanderwest for becoming Knife Steel Nerds Patreon supporters!. BM M4 vs M390 Discussion in 'Benchmade Knife Company' started by sae, Nov 4, 2015. M4 is a great all around steel. 0.7% of Silicon: Gives extra hardness to the steel, and keeps air bubbles from forming in the melting process. – K390 – Vanadis 4 Extra / CPM-4V – CPM M4 – D2 – O1 – Much more. I prefer a harder matrix at 62rc plus with a chemistry like that, I like a stronger apex. March 30, 2020 Larrin. Will wait for the P4 LW in K390 and the Shaman with Micarta Handles. M4 is probably a tad tougher, but at 65 HRC (K390) vs 62-63 HRC (M4) that's expected. I think both steels with good heat treats at ~65 hrc would be a closer match, k390 with more edge retention, m4 taking less damage in rough use.... maybe. Easily my favorite. Nov 4, 2015 #1. sae. I'm really liking how M4 looks from other makers and general info, but I'll … Took a good chunk of time to reprofile the factory edge, but it touches up quickly. The full flat grind is relatively thin behind the edge (between 0.020-0.025” depending on where along the belly you’re checking), and has a gradual flat face that terminates at the spine. (John Adams regarding the White House), https://www.youtube.com/user/shawnhouston, https://www.amazon.com/DMT-W6XP-Diamond ... way&sr=8-7. I've put a cbn low grit edge on my police 4 and carried that around for a week, the other day I gave it the ultra fine stone and 1micron cbn on leather treatment. All knives had the edge bevels at 6-8 dps with a 15 dps micro-bevel set with an x-coarse DMT benchstone as shown on the image to the right. Edge retention testing is continuing, we have now tested 18 different steels, and four of those steels with multiple heat treatments. K390 steel vs CPM 3V I’m leaning towards the pm2 based on what others have said and I do plan to get a contego eventually anyways. K390. K390. descrizione del prodotto. Currently it is not used in many knives except possibly the odd Custom piece, but we might see it in a Spyderco Mule soon. Hope you like it! Not sure which I like better, different animals. How do they compare as far as toughness? The ParaMilitary 2 has a blade shape, grind, and spine thickness (0.15”) that all comes together in a very simple looking manner. Based on @Bohler communication the M390 steel is composed of:. That would be awesome! Paid Subscribers don't see ads! But his depends on how new they are. 1.9% of Carbon: Carbon is essential in all blades and knives, it gives more toughness, durability to the blade/knife, but the carbon as a component is susceptible to corrosion. K390 vs M390. - YouTube Is one that much better than the other when the hardness gets close? M4 is probably a tad tougher, but at 65 HRC (K390) vs 62-63 HRC (M4) that's expected. Good choice! TWISTED SISAL MERCH - THANKS TO MISHEARDKNIFEREVIEWS: https://teespring.com/twisted-sisal-merch Remember to subscribe for more lunacy - hit the bell etc!https://teespring.com/knife-lab-2019-merch - Merch from the LAB!https://docs.google.com/spreadsheets/d/1b_rNfdJnL9oyn-JoL9yUHhUmDLAP1hJ1dN_0q5G4tug/edit#gid=1607644856 - Full steel testing list for my cut test videos, free to all.http://www.patreon.com/cedricada - support me on patreon if you like, helps me do the expensive stuff!Sorry if something I spoke about was lost - I did a mass edit of my descriptions. Im torn between a benchmade contego, and a pm2 in m4 and can’t decide what I want. Apr 11, 2015. Am I going to notice a huge difference between m390 and m4? Acciaio prodotto mediante il processo di metallurgia delle polveri BÖHLER MICROCLEAN, caratterizzato da elevata omogeneità microstrutturale. Isn’t this video I do a toughness test on three different Spyderco’s with k390, cruwear, and S110V. 13. I like the mellowed out version that has been used. M4 vs K390 - Toothy Edge Steel Battle for the Ages! M4 is a great all around steel. Spyderco Shaman M4 at 64.6 hrc vs the Spyderco Police 4 K390 at 65.4 hrc. M390 vs 20CV vs 204P – 3rd Generation Powder Metallurgy Technology? M4 cuts better. S45VN is a new powder metallurgy stainless steel being produced by Crucible that has just been announced. OTK - EDC : k390 - 63/64 HRC; s45 : CPM M4 - 63 HRC. I have two EF: the credit card & diafold (with EEF), Upward and onward. Not a big fan of the 204p on production knives or any of the 20cv and m390 stuff with my personal experience. I only say that cause I don't have k390. Postby MacLaren » Thu Mar 14, 2019 7:17 pm, Postby Deadboxhero » Thu Mar 14, 2019 7:30 pm, Postby hambone56rx » Thu Mar 14, 2019 8:24 pm, Postby Deadboxhero » Thu Mar 14, 2019 8:50 pm, Postby ZrowsN1s » Thu Mar 14, 2019 9:00 pm, Postby TomAiello » Thu Mar 14, 2019 10:00 pm, Postby anagarika » Fri Mar 15, 2019 12:53 am, Postby Deadboxhero » Fri Mar 15, 2019 1:49 am, Postby ZrowsN1s » Fri Mar 15, 2019 2:21 am, Postby Chumango » Fri Mar 15, 2019 9:54 pm, Postby anagarika » Sat Mar 16, 2019 3:40 am, Postby steelcity16 » Thu Nov 14, 2019 2:06 pm, Postby abbazaba » Thu Nov 14, 2019 4:42 pm, Postby Pelagic » Thu Nov 14, 2019 8:48 pm, Postby Doc Dan » Thu Nov 14, 2019 10:50 pm, Postby Pelagic » Fri Nov 15, 2019 10:40 am, Users browsing this forum: Bing [Bot], jpm2, kingm, Wartstein and 29 guests. BBB however made it apparent that there is a huge difference in strength between M4 and K390. As you can see both simple and crazy steels are listed here… This is because these higher priced knives often get their prices from the expensive steel they use and the expensive heat treatment they need. K390 vs. CPM4. DMT fine is supposed to be 600, EF is 1200. Thanks to Josh Warren and Alex K for becoming Knife Steel Nerds Patreon supporters! Errmahgurd! K390 steel is hard to grind, finish and sharpen. Spyderco Counterfeits, Clones, Replicas, etc. Bohler K390 Data Sheet PDF Spyderco Dragonfly 2 C28FP2K390 Folding Knife, K390 Plain Edge Blade, Blue FRN Handle. May none but Honest and Wise Men ever rule under This Roof! Thanks for the feedback. BBB however made it apparent that there is a huge difference in strength between M4 and K390. So you’ve seen a PM2 before. It has a 64.5 to 67 HRC rating so some might find themselves torn with the numbers. I Pray Heaven to Bestow The Best of Blessing on THIS HOUSE, and on ALL that shall hereafter Inhabit it. However, once it is sharp it will stay sharp for a very long time. Aber wie immer, es ist nicht DER beste “Stahl”, denn “der beste” hängt IMMER von der individuellen Verwendung ab. Thanks to Niagara Specialty Metals for getting me a bar of S45VN for the experiments necessary for this article.. History of S45VN. M390 exhibits excellent edge retention, corrosion resistance, and high level toughness. Why would I vote for an M4 Military when I already have one. This puts the Spyderco medium rod between the DMT fine and EF, the Spyderco white rods finer than the DMT EF.
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