The greatest living knifemaker and one of the greatest knifemakers of all time, Michael Walker, calls AEB-L one of his favorite steels. It’s called memory metal because heat can get it to revert back to a previous shape. It’s very tough and exceptionally corrosion-resistant. I then refinished them and started the 1% saltwater test which was 48 hours long. The standard blade steel of the Native 5 is CPM S30V stainless steel, but Spyderco has expanded that offering with additions like super high-grade CPM-S110V and Maxamet steels. May 25, 2020 | By Anthony Sculimbrene & Sean McCoy. Read our full Sobata 398 review here. Spyderco and Cold Steel have used it, though Cold Steel recently switched to S35VN due to availability concerns. As you lower the pressure post turbine, you also inherently drop the backpressure before the turbo. Because of its abrasion-eating hardness, knives with REX 121 come at an exceptionally high price. CRKT and Spyderco use BD1. BD1 is excellent budget steel, very similar in composition and performance to GIN-1, a Japanese steel used a decade ago by Spyderco. We asked five pros how they made it work and what it takes to make a living in the outdoor industry "in real life.". They lack the carbon necessary to hold an edge, even during mild use. But it’s lightyears ahead of the alternatives, specifically titanium-bladed knives. Do a through test on 420 hc buck basic cryo hardened steel at there treatment level …corrosion,hardness .edge retention .most people need 420hc cryo because average people can’t sharpen good thanks, Your email address will not be published. It won’t hang long with high-end powder metal steels (a method of making steel using ultra-pure micrograins of steel that are heated and pressed together). Despite its age, it’s a truly superior steel. Knives are one of our oldest tools, so it makes sense that they have evolved into thousands of styles since the first person chipped one out of stone. Runner volume needs to be considered when building a turbo manifold. The old rule in steels used to be “corrosion resistance, toughness, or hardness — choose two.” But SM100 (the trade name for Nitinol 60) threw that out the window when introduced to the cutlery world. You can read more about this in the article on S35VN. REX 45 will have better edge retention but less corrosion resistance. I heat treated coupons of SPY27 by wrapping the steel in stainless foil to protect against scale and decarburization. It has enough water-fighting properties that it can be used in marine environments. Exhibiting very good edge retention, corrosion resistance, and sharpenability, S30V is utilized by a variety of makers for its performance and balance. Report Save. Like 154CM, there is a newer version, S35VN, which shares many of the same attributes as S30V but is easier to craft into a knife thanks to niobium. Model # SP-C101PCBL2 . Yojimbo™ 2 Natural G-10 CPM M4 Exclusive. Which one is right for you? The test involves heat treating steel, finishing it to 400 grit, and then spraying it every 8 hours either with purified water or 1% saltwater. It’s actually quite good, low-cost steel that performs like midprice steel. D2 has been around for more than 20 years, an eternity in metallurgy terms. Steel is a combination of iron and carbon with other elements. In Stock . But we’ve tested this metal in the form of the Sobata 398 for nearly a year and have been continually impressed. INFI is also quite hard and sharpens easily. But SM100 is not widely available, hard to heat treat and grind, and exceptionally expensive. Support us! But it doesn’t have great wear resistance and thus doesn’t hold an edge particularly well. I will be posting results as they come in to Patreon and articles summarizing the tests will come later to this website. Combined, these features offer a distinctive look and exceptional edge geometry. While not a powder steel, 154CM is widely used in nicer knives. If you want to see tests as they are completed come join us on Patreon. This guide explains important features to consider when buying a new knife for the outdoors. The purified water is to test if the steel is acting as a stainless. And while it can be hard depending on the heat treat, I have found it easily chips, causing microscopic dings in the edge when hardened to a high level on a thin blade. from Knifecenter.com - The Original and Largest Online Catalog of Cutlery The brand Bark River uses A2 in many models. The S30V and 420HC were also austenitized at 1950°F. Sharing in-depth conversations between the world's adventurers, athletes, and outdoorspeople, The GearJunkie Podcast is your inside look into the outdoors industry. This compression lock has black FRN handles with a reversible tip-up pocket clip and a lanyard hole. In the previous SPY27 article I predicted that it would have “similar hardness to S35VN, S30V, and S45VN” when heat treating with similar parameters. It’s tough, but that’s about it. The S30V and 420HC were also austenitized at 1950°F. It’s … VG-1 is a non-powder steel made by Japanese specialty steelmaker Takefu. (Some crazy folks clean their Swiss Army knives in a dishwasher. It’s a manual opener with a round hole. But as the market has grown and newer steels have come out, it has fallen in price and prestige. Enter before February 8th for your chance to win. Proudly Crafted for Life® with highly evolved ergonomics to minimize fatigue and increase cutting power. I have shown the 2050°F specimen below, along with comparisons with S30V, S35VN, and S45VN where you can see that SPY27 has somewhat less carbide than the others. Engine Repair Manual. Spyderco Native 5 Lightweight Cobalt Blue FRN CPM SPY27 C41PCBL5 . However, there is another proposed explanation which I will cover along with the micrographs below. I may have to do some more corrosion testing and modify the ratings. It’s not a particularly great cutter, being poor at retaining an edge. 3. share. Though technically not a stainless steel — at least 14% chromium, and D2 usually has 12% — it’s relatively corrosion-resistant. Read more…. Spyderco has produced several production knives with Maxamet, and the steel debuted on the ZT0888. But if you want to know what the coolest blade material is, for my money, SM100 is it. One of the more common stainless steels, and one readily available in lots of different places worldwide, AUS-8 is a decent all-around steel. There has been some internet controversy over the grinding and heat treat of this steel. The high hardness makes it all but impossible to sharpen and machine. D2 is a tool steel used in industrial settings. Developed by New Jersey Steel Baron, Nitro V is a non-powder steel marketed as an enhanced version of AEB-L. Nitro V, as its name indicates, adds nitrogen to AEB-L’s formula to make the steel even more corrosion-resistant. © Copyright 2021 GearJunkie, All Rights Reserved, Under Armour Flow Velociti Wind Review: No Outsole Needed, Get Behind the Scenes of Burton's 'One World' Snowboarding Film, Multitool Threads: Leatherman Works Its Way Into American-Made Apparel, Lifetime Achievement: 6 Marathoners Vie for a Spot on the Olympic Team, The Bestselling Gear at Competitive Cyclist This Week, Perfect Camp Grounds: VSSL JAVA Coffee Grinder Review. To see how common the clusters of carbides are I have a lower magnification image of SPY27 below: I also gave some estimates of edge retention, finishing, and sharpening of SPY27. If you need something that soaks up abuse, try 3V. Three main characteristics differentiate steels from one another: corrosion resistance, hardness, and toughness. So far only two stainless steels have failed this test, XHP and ZDP-189. It also appears that SPY27 did somewhat worse than S30V. It’s very corrosion-resistant and quite tough. ... SPY27 launched in 2020 in the Spyderco Native 5 and Para 3. Also known as Z-Finit, Zapp produces this steel in America. Custom maker Brian Trudeau uses Nitro V, and Massdrop’s Perpetua design is the first production knife to sport it. This is the steel used in Swiss Army knives and is excellent for beginner sharpeners. In particular, I have found the ESEE/Rowen 1095 to be less likely to chip and better at holding an edge than the Ka-Bar version — even in knives with the same role, thickness, and blade length. This is an old high-carbon (non-stainless) steel. In Stock . I have a new CATRA edge retention testing machine. Made by @Crucible CPM 20CV is a martensitic stainless steel high in Vanadium, Chromium, and Carbon for excellent wear resistance and corrosion resistance, it’s used for plastic injection feed screws, barrel liners, screw tips, mold cavities, and premium Knives.. 9Cr is the top end of the series and is quite good — as good or better than AUS-8. It has an HRc over 70, usually even harder than Maxamet. It’s easy to sharpen. This provides the steel good flexibility, offering easy heat treatment to 60 Rc with commercial heat treating and also higher levels if desired. Awesome work, Larrin! A Japanese powder steel, ZDP-189 is essentially the polar opposite of 3V — it’s uber-hard instead of uber-tough. Notify me of follow-up comments by email. Manix 2 Lightweight CPM SPY27. Furthermore, because of its ultrahigh hardness, Maxamet is very prone to corrosion, probably worse than 1095. $136.50. The Spyderco Para 3 is a compact version of the spectacular Paramilitary 2 folding knife. That makes all the difference. But it’s very cheap, and, when ground appropriately, it can be a real winner from a value standpoint. SPY27, S30V, and 420HC all passed without corrosion after 4 days. The steel can be heat treated over 64 Rc with a liquid nitrogen treatment and a 300°F temper and a range of lower hardness levels with different combinations of parameters. Here, we break down how to choose a flashlight, including best flashlight LEDs, batteries, designs, and more. SPY27 and S30V have “good” or “above average” corrosion resistance but cannot match 420HC. $140.00. I’ve found S35VN less chippy even at the same hardness. However, M390, CTS-204P, and CPM-20CV are all pretty difficult to resharpen, so maintain that edge! Anthony Sculimbrene authors the blog EverydayCommentary.com. But don't count on it out-cutting S30V. CPM SPY27 Steel. Austenitizing at a higher temperature means more chromium carbide is dissolved putting more chromium “in solution” to contribute to corrosion resistance. Like its bigger brother, the Para 3 has the Compression Lock, textured G-10 scales, and a full-flat ground blade. Note: There is a powder-metal version called CPM154 that’s purer than the non-powder version, making it easier for knifemakers to grind. It's impossible to really say how it will perform exactly, without knowing how hard they're running it. $269.95. It’s used for combat knives, bushcrafting knives, and other applications where having a supertough blade trumps the need for edge retention and corrosion resistance. If the knife you’re looking at has a 154CM blade, you’re fine. With a high level of edge retention, corrosion resistance, and toughness, it does most everything quite well. This is an American-made powder steel. But the true calling card of INFI is its insane toughness. Only a few years ago Elmax was pricey, but competition has driven it down to reasonable levels, making it a decent value. This is a midprice steel with matching performance. As of November 2020, this is Spyderco-exclusive steel. The blade, which is constructed with high performance CPM-S30V, is fully flat ground, making it a breeze to re-sharpen. SPY27 has similar obtainable hardness to S35VN and similar corrosion resistance to S30V. $329.95. Crucible intends SPY27 to be good all-around knife steel. In nitrogen steels, nitrogen is used as the iron-hardener instead of carbon, thus limiting the possibility of rusting. GearJunkie may earn a small commission from affiliate links in this article. I took micrographs of the steel that tested for toughness, which means the heat treatments were 2000 or 2050°F austenitize, plate quench, cryo, and tempered at 400°F. previously described corrosion resistance test, cobalt addition leading to slightly worse corrosion resistance. Native® 5 FRN CPM® SPY27™ ... UK Penknife™ Red G-10 CPM S30V Exclusive. Read more…. Generally seen as a slight upgrade to the 440C/VG-10/ATS-34 caliber of steel, it’s a decent all-around steel with good corrosion resistance, decent toughness, and only modest hardness. Flashlights run the gamut of price and quality. CPM-S30V. I’m so confused about it since I thought CPM154 is very good at toughness aside from its medium edge retention and corrosion resistance. And while you’ll find it mostly in expensive knives, quite a few approachable M390 blades exist. Spyderco offers this as the high-end steel for many of its evergreen blades, like the Paramilitary 2, Paramilitary 3, Manix 2, and Native 5. Type 8Cr, the more common formulation, is worse than AUS-8: a little more prone to corrosion and not quite as hard. Here, read on for an in-depth look at common knife steels as well as the best knife steels around. Required fields are marked *. Different heat treats have emerged over the years, but one has risen to the top as the best: Bob Dozier’s D2. It even has a lanyard hole for more carrying options. But to learn more about these and other attributes, read our related outdoor knife buyer’s guide. At that point very little information was available about the steel other than the composition and that it was produced by Crucible steel. And it gives everyone else a chance to see whether I am any good at predicting properties of steel based on composition. It may be that without reducing the chromium carbide content to much lower levels that the toughness remains limited to about 10-12 ft-lbs as is seen with many of these stainless PM steels like Elmax, M390, CPM-154, S35VN, S30V, SG2, etc. I could not tell the difference between the two heat treatments in this case, however. Steels 7Cr and below aren’t worth your time or money. It’s very similar chemically to RWL 34 and ATS-34. There weren’t obvious differences in the microstructure of SPY27 between 2000 and 2050°F, however. Limited Spyderco Delica Sprint Run Knife Glow in … 24 Jan January 24, 2021. LC 200N is an elite performer, with high hardness, high toughness, and off-the-charts corrosion resistance. Like 154CM, it’s a good compromise between all three steel attributes. It boasts an incredible ability to continue cutting long after it seems “dull.” And it’s not made of steel. It’s a good balance between all three attributes, being relatively hard, tough, and corrosion-resistant. It is available with a variety of materials and is a great size for every day use or special applications. The steel is similar to Sandvik’s 13C26. GiantMouse Vox/Anso ACE Iona Liner Lock Knife, The 30 Best Memorial Day Sales You Don’t Want to Miss. AEB-L is a non-powder steel produced by Swedish steelmaker Uddeholm. Spyderco Manix 2 Lightweight BD1N Black FRCP C101PBK2 ... Spyderco Manix 2 Plain S30V Black G10 C101GP2 . Made from CPM-S30V particle metallurgy stainless steel, the blade is robust with a razor sharp and reliably tough edge. European steel company Sandvik produces 14C28N, a non-powder metallurgy steel. There is one exception: Buck’s 420HC (Buck and only Buck) is produced using a proprietary heat treatment. S30V Knife Steel A high chromium content stainless (14 percent) that contains molybdenum and vanadium, which enhances the toughness, corrosion resistance, and edge holding ability. I will have an article on it hopefully in a couple weeks. The composition of the steel along with some other in the same class are shown below. They represent the absolute best performers on the market in terms of their specific attributes. I performed two heat treatments with SPY27, one austenitizing at 1950°F and another at 2050°F. As you know the ZT 0562CF with the M390 blade is one of the hardest to get “hard use tactical folders” at this time. The CPM154 was marked at the point somewhere around 20 ft-lbs in your previous chart but now at 5-10 ft-lbs only? Instead, Vargo titanium uses a unique material called sintered titanium-ceramic alloy. If you’re looking for all all-around best knife steel, you’d be hard-pressed to find one better than Bohler Uddeholm M390. Note: Don’t bother with anything less than 8Cr in this series. The Para 3 Lightweight and Manix 2 Lightweight will be the first two models to feature CPM SPY27 blade steel. Chris Reeve’s version, which is about two points less hard than others, is quite good. Spyderco Manix 2 Lightweight SPY27 Mineral Blue FRCP Folder C101PCBL2 . A powerful synergy of high performance and low profile, the Manix 2 Black Blade is a reliable, full-service folding knife with a stealthy non-reflective finish. Buy Spyderco Para 3 Folding Knives, The original design intent of the Paramilitary was to provide the same proven reliability and cutting performance of the Military but in a more compact, easy-to-carry package. I expected the toughness to be better because of the reduced carbon and carbide content when compared with S35VN. The blade features a full-flat grind, a distal taper, and an understated wedge. Elmax Vs M390. I'm surprised you're looking forward to BD1N after having written off S30V and S35VN. Most steels use carbon to increase hardness, but 14C28N uses nitrogen, boosting hardness without the normal penalty of increased corrosion. It’s a very hard steel and is exceptionally difficult to sharpen. As a result, there are no production knives with REX 121 steel, though Ferrum Forge used the steel early on in its custom knives and a Kickstarter knife from the Creely Brothers.

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