M390 exhibits excellent edge retention, corrosion resistance, and high level toughness. Is Crucible still just a play by Arthur Miller in your mind? Blades are designed to cut—that’s obvious enough. Edge Retention (also called strength) is your knife’s ability to hold sharpness during use. Only 1 left! Good edge retention, toughness, and sharpenability, D2 has been a popular knife tool steel dating back to WWII, and for good reason. With slightly decreased edge holding and a tendency to corrode in extreme conditions, O1 performs very well despite requiring light maintenance. Sandvik steels are largely found on affordable, entry-level knives. But since 1990, Kit's most consistent selling custom model has been his classic M4™. CPM-S110V exhibits many of the same qualities as S90V. This increases the strength of the edge tremendously. Certain blade steels are more stable at highly acute angels. Sharpening goes hand in hand with blade geometry. In contrast, a more obtuse angle will be more stable and durable. All you have to do is click to be taken to Certain steels are so good at resisting rust and corrosion that they can be left abused and salty without ill-effect. With significant amounts of Chromium, Molybdenum, Vanadium, and Tungsten, these steels are 100% ready for action. The effect of heat treat varies based on the composition of the steel. The 400 Series of steel has been popular for longer than almost any knife guy has been alive. Your IP: 43.239.223.154 The goal of many knife users is to find the best steel to fits their needs. Remember that in addition to steel, geometry and heat treatment both play a huge role in performance. Powdered steels are more consistent, have better edge retention, and improve toughness due to a lack of inclusions. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. ; Package length: 4.0 Bushcraft Fixed Blade: The M4 by LionSTEEL is designed as an all-around fixed blade knife for bushcrafting, wilderness survival, camping, outdoor cooking, and any other chores you can throw at it. Please enable Cookies and reload the page. So what about all the other steels that didn't make it on the list? Spyderco Paramilitary 2 Carbon Fiber M4 Steel Knife C81CFM4P2 Exclusive Run. All steels can get equally sharp! Pro-tip—if your blade is labeled stainless steel, but no more details than that, you're probably best off keeping that knife decorative only or using it as a beater knife. $171.50. Do you frequently use your knife to meal prep acidic ingredients like citrus or tomatoes? • Knives such as the Spyderco Chaparral have a very thin edge at only .014”. This knife is a real handful for its size. Both great steels, CPM-154 benefits from a powdered metallurgy and is finer grained than 154CM. M4 and M390 were brought back to phone book slicing, hair popping sharpness easily by honing on the brown Pro-File stone (see method above). Chris Reeve is famous for developing two steels directly with Crucible Industries, and boy did this partnership result in an awesome product. The following are deserving of mention, but there are just not enough knives produced from these steels to give a rating. Updated by Blade HQ Staff Trevor Brown and Andrew Hamilton on 3/1/2019. Excellent strength and toughness are balanced with very good sharpenability and corrosion resistance. Believe me, we tested it so you don't have to. Easy to sharpen and quite corrosion resistant, maintenance is a breeze. This video addresses the subject of toughness testing with knife steel. Hone your sharpening technique and expand your collection as these steels are generally more affordable. A 30 degree inclusive edge means that each side of the blade is sharpened to 15 degrees. ... Again, consider the four properties of knife steel: Toughness - This steel has outstanding toughness, so you can expect it to survive abuse in the field and in survival scenarios. M390 is super stuff, I always want more CPM-M4 in my life, and there's never going to be anything wrong with a fixed blade made out of A2. A powdered high speed non-stainless tool steel from Crucible. When we call a normal steel stainless, it really means that the steel will stain LESS than carbon steel. Often overlooked is the job at hand. Its CPM M4 tool steel -- widely regarded as a "super steel" for its properties and performance -- means that it'll hold an edge longer than similar knives in other steels. Discontinued, hard … CPM-3V is, in many ways, the perfect blade steel for a fixed blade knife. BD1 is a great entry-level steel. It has high wear resistance and high impact toughness, making it popular for cutting competition knives. CTS-204P is made by the USA-based Carpenter Technology Corporation and CPM-20CV is manufactured by Crucible Industries. Steel stock comes in a variety of sizes and high carbon types, including 52100, CPM REX M4, 1080, 1095, 5160, and 15N20, each with unique compositions. Edge-holding ability: For almost 20 years, I carried sharpening gear on backcountry elk and deer hunts in Idaho. Does Bohler-Uddeholm sound like a stinky cheese to you? This is one of those most ubiquitous steels in knives. - Full steel testing list for my cut test videos, free to all. M4 is a tool steel produced by Crucible Industries, a company known for the production of some of the best knife steels on the market today. It may seem like there’s a big step down between a steel like S110V and CPM 154. Carpenter-produced CTS-XHP is one of the most well-rounded and versatile steels. The great thing about cutlery, is that any knife can get equally sharp regardless of steel. Sharpen it! What is there really to say? Knives with M4 Steel Knives. It engages a ramped tang portion of the knife blade when it is opened. Advantages: Relative toughness, wear resistance. Disadvantages: Relatively more difficult to sharpen than CPM 3V and predecessor tool steels like A2, not as tough as CPM 3V or CPM 4V. Crucible Industries has a real gem on their hands with CPM-M4… At the cost of some corrosion resistance you get amazing edge holding, toughness, and decent enough sharpenability. Keep your blade oiled as D2 is prone to rusting and corrosion. High hardness (60 HRC+) increases the edge retention of the steel at the cost of brittleness. We're offering the M4 design in Kit's smaller every day carry (E.D.C.) Maybe one of the most frequently overlooked aspects of blade steel is sharpenability. The following is a list of popular budget steels. Extremely tough blades may not cut as well as desired and can suffer from edge rolling and difficulty maintaining an edge. It’s remarkable the increased performance you find in cut tests when comparing premium steels to lower end options. Sharpenability is pretty self-explanatory, but softer steels can be touched up in the field on that big elk hunt. This allows for a very uniform distribution of carbides throughout the steel structure during solidification. CPM 3V Toughness & Wear Resistance vs D2, A2 & CPM M4 (Courtesy of Crucible Industries.) CPM M4 Steel (”M4”) M4 knife steel is known for keeping its razor-sharp edge longer than any other types of knife steel, which makes M4 knife steel an excellent choice for survival knives. Stainless-steel bolsters add weight and heft to let you know you have a great cutting tool in your hand. Whether it’s dicing up cardboard boxes, feather sticking some firewood, or hacking up sisal rope, no one likes a dull knife. AUS-8 steel. The most well rounded steels like CPM-154 and 154CM create an even shape while a steel like CPM-3V is severe due to high toughness and lower scores in all other categories. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Steels patina in the acid at varying rates which allows for one steel to etch darker than the other and show that famous patterned contrast. Performance of all the 400 Series steels is quite similar, but you will see slight variations among the different compositions. S90v has great wear resistance but would make a sub par chopper and m4 is a great overall steel but would make a bad diving knife. The large difference is that M4 has a ton of tungsten and molybdenum so it's harder and tougher than S30V at the expense of corrosion resistance. Such amazing corrosion resistance comes at a cost, as this steel doesn't exhibit stand-out wear resistance, edge holding, or toughness. Exhibiting very good edge retention, corrosion resistance, and sharpenability, S30V is utilized by a variety of makers for its performance and balance. The primary difference is out-of-this-world edge retention at the cost of a minimal reduction in toughness. Tough steels excel at camp chores and batoning wood but are unable to be used at very thin edge profiles while maintaining edge stability. experience. Consider Elmax if toughness is high on your list. M4(AISI) - High speed tool steel. M4 has been around for a relatively long time, lately entering custom and high end production knives. Additional considerations include the thickness of the blade stock and the primary grind. Go buy one for yourself, and everyone you know, as a Christmas present. A large volume of vanadium carbides provides the high wear resistance. I dont see the high carbide steel craze dying soon, its ok since I like to check out the newest steel but I do wish more knives would be made in “simpler” steels with better heat treats. Inherently, more acute sharpening angles will see better cutting performance than more obtuse angles. Not widely offered by knife makers yet, BD1N would likely land in the Premium or High-End section of our article, and is found in the highly-anticipated Spyderco Para 3 Lightweight. N690 is an extremely ubiquitous and popular steel among knifemakers in Europe. CPM REX M4 HC (AISI M4) is a high speed tool steel produced by Crucible using CPM process. Shop thousands of quality knives from all the top knife brands including Spyderco and Benchmade. Based on experience and testing, M4 steel may outperform blade steels such as M390 and S90V in terms of edge retention and M4 is in a completely different league in terms of toughness. Thanks to Aaron @ Gough Custom, Aaron McVay, Mark Scott, Jeffrey St. Claire, Grant Seim III, and saiiiiiii1 for becoming Knife Steel Nerds Patreon supporters!. Another way to prevent getting this page in the future is to use Privacy Pass. Bohler M390, CTS-204P, and CPM-20CV are all essentially the same steel and sport a near identical composition. The comparison between the two is tough. An easy to sharpen knife will generally not exhibit excellent edge retention. Elmax is an amazingly well-rounded steel when you take all of these factors into consideration. That knives made from AUS-8 are generally very affordable but that day not... To corrode in extreme conditions, o1 performs very well despite requiring light maintenance stable at acute! Well despite requiring light maintenance compare your use cases to choose the perfect knife for you Reeve is famous developing. Totally a super important factor to consider when buying a budget knife, maintenance is a small step below in... 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