Insanely tough, this steel also manages to boast excellent edge retention and corrosion resistance. Use it. In reality, there is no perfect blade steel in the same way that there is no perfect knife. AUS-8 can be readily found in one of our best-selling knife models, the Boker Kalashnikov. CPM S35VN Steel Review Chris Reeve Knives PacificWhen Crucible Industries introduced its CPM S30V steel, blade-smiths and knife-lovers alike fell in love with it; the quality wear resistance, toughness, and machinability offered by the steel was equal to none other. 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. Heat Treatment is the process of hardening and tempering the blade steel through heat. The comparison between the two is tough. Consider Elmax if toughness is high on your list. CTS-204P VS CPM-20CV CTS 204P CPM 20CV is a martensitic steel, which refers to its hard crystalline structure with lens-shaped or lenticular grains. Crucible Industry's CPM stands for Crucible Particle Metallurgy. The addition of niobium makes CPM S35VN about 15% to 20% tougher than CPM S30V without giving up any durability. By using this site, you accept our, All the best knives in many different styles. Is Crucible still just a play by Arthur Miller in your mind? CPM S35VN's improved toughness gives it better resistance to edge chipping. This increases the strength of the edge tremendously. Corrosion Resistance (out of 5) | 3.5 | 4. 440C 2.5 ft. lbs. The CATRA test measures the sharpness and edge life of a blade by comparing it to 440C; CPM S35VN is 145% better. 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.. CPM S35VN. The two steels also have a similar hardness profile on the Rockwell scale - up to 61. I'm trying to decide on a steel for an EDC Mini Griptilian and if someone could break down the strengths and weaknesses of these steels in comparison along with an opinion on which is better, that would be great. CPM S35VN hasn't been around all that long -- it originated in 2009 as Crucible Industries' attempt to improve on their previous top steel, CPM S30V. Many quality knife manufacturers use both types of steel in their offerings, so it's important to remember that both are good choices for toughness, wear and edge retention. All you have to do is click to be taken to CPM S35VN 12.0 ft. lbs. Doing a head to head cut test using 2 different Paramilitary 2 knives. Crucible's CPM melting process makes steel more uniform down to the microscopic level for very stable, tough steel that is resistant to cracking or breaking. The chart below shows how amazing H1 steel is in every category except edge retention. Martensitic is a specific type of stainless steel alloy. Advantages: Toughness, wear resistance, corrosion resistance. Tough steels excel at camp chores and batoning wood but are unable to be used at very thin edge profiles while maintaining edge stability. Toughness (out of 5) | 4 | 3 1095 is budget-friendly and widely available. With significant amounts of Chromium, Molybdenum, Vanadium, and Tungsten, these steels are 100% ready for action. 204P (same as M390 and 20CV) This puts S45VN more on par with 204P/M390/20CV as shown in this comparison chart of my previous corrosion experiments. CTS-204P is made by the USA-based Carpenter Technology Corporation and CPM-20CV is manufactured by Crucible Industries. The steel contains a large volume of extremely hard vanadium carbides, which provide excellent wear resistance. Carbon | 1.4% | 1.9% Buy it. Strength and toughness are comparable to that found on VG-10 or 154CM. CPM-4V boosts the edge holding when compared against 3V, but at the cost of some slight toughness. The high percentage of chromium with a bit of molybdenum makes 20CV one of the best high-end, corrosion-resistent steels used in knife blades today. In a smaller blade, like an everyday carry folder, 20CV is tough enough for most uses. Both S30V and S35VN steel are made with the same carbon and chrome content, and from various tests, both steels provide the same edge retention and corrosion resistance. 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. [Help] S30V vs 20CV? Where a normal steel would chip, these knives can sustain intense batoning sessions, power through staples, and glide through steel strapping. This is one of those most ubiquitous steels in knives. Crucible's goal was to create an even tougher steel that didn't sacrifice resistance to corrosion, and they did that by using niobium carbides in place of some of S30V's vanadium carbides. Chromium | 14% | 20% Despite the good edge retention, S35VN can be a bit difficult to sharpen. And a range of standard grades like W1, W2, 1075, 1084, 1095, 15N20, 52100, 80CrV2, AEB-L, A2, D2, L6, and O1. As a Powder Metallurgy (PM) tool steel, you get a combination of impressive wear resistance and edge retention plus the added benefit of being highly corrosion resistant due to high levels of chromium. CPM 20CV contains The answer depends on what you'll be primarily using the knife for. People were calling it, “the best knife steel available,” and indeed, it might have been. Introduction to CPM 20CV S35VN. Stainless/Corrosion Resistance. Absolutely good-to-go, VG-10 may be one of the most neutrally balanced steels on the market. Abuse it. CPM S35VN hasn't been around all that long -- it originated in 2009 as Crucible Industries' attempt to improve on their previous top steel, CPM S30V. The addition of molybdenum also helps to keep away corrosion, specifically the type that causes pitting in the steel. Crucible's CPM melting process makes steel more uniform down to the microscopic level for very stable, tough steel that is resistant to cracking or breaking. Stainless/Corrosion Resistance. S90V and 20CP have similar chemistries, but are made by different foundries. N690 is an extremely ubiquitous and popular steel among knifemakers in Europe. pin. I feel the best way is to compare it to CPM M4 which is a steel we are all familiar with and gets compared often to Hap40/Rex 45 First testing is sharpening to a high sharpeness freehand on benchstones and comparing small differences … Don’t worry—we’re going to break down and compare all the best knife steels you can expect to find at Blade HQ so that you can determine the supreme steel for your needs. Elmax can be found in many Microtech knives. Introduction to CPM S35VN Hardness Ability. Good edge retention, toughness, and sharpenability, D2 has been a popular knife tool steel dating back to WWII, and for good reason. Additional considerations include the thickness of the blade stock and the primary grind. Most of my typical usage is light EDC, food, packaging, cardboard etc. Knives prone to corrosion can be protected with a thin coat of mineral oil. It's comparable to Bohler's M390 stainless steel or Carpenter's CTS-204P and, like those alloys, takes a mirrored finish well. Your own use of the blade will determine which one is slightly better for your needs. Hone your sharpening technique and expand your collection as these steels are generally more affordable. When you put your knife to work, what tasks will it need to conquer? CPM 20CV is a steel created by Crucible to be excellent at resisting wear and corrosion, balanced with good toughness. Blade HQ uses cookies to provide you a better user Azka. Are you in a humid, wet, and salty environment? Sharpen it! Honestly, I doubt the average user will be able to tell the diff. On the Rockwell Hardness scale, CPM S35VN rates 58-61 HRC. When it comes to getting the job done there are four main factors that determine steel quality. Knife makers tend to love CPM S35VN, so if you've spent any time on knife forums, you're probably familiar with it -- or at least have heard about it in passing. Easy to sharpen and quite corrosion resistant, maintenance is a breeze. -- | CPM S35VN Steel | CPM 20CV LC200N is an amazing steel! (Carbides are hard particles comprised of carbon alloys in the steel matrix that indicate toughness and wear resistance but can be brittle in the wrong combinations. Edge Retention (also called strength) is your knife’s ability to hold sharpness during use. The addition of molybdenum increases the material's strength to properly hold the edge. The addition of 0.5% Niobium, and reductions in both Carbon from (1.45% to 1.40%) and Vanadium (from 4% to 3%) produced an alloy with 25% increase in measured Charpy V-notch toughness over S30V (Crucible claims 15 … Chromium is what gives steel its ability to resist corrosion, but it is less tough and wear resistant than other metals. Prioritize Corrosion Resistance if you take your knives to high humidity environments. Exhibiting very good edge retention, corrosion resistance, and sharpenability, S30V is utilized by a variety of makers for its performance and balance. So what is the best steel for knives? The vanadium in the alloy works to create a fine grain structure that helps hold an edge. Another consideration is corrosion. These are the S30V or S35VN introductions that I could easily identify. Both of these steels are a real bear to sharpen up! Despite the good edge retention, S35VN can be a bit difficult to sharpen. Edge retention and toughness are very good. CPM-20CV is only beginning to be used in production knives. Niobium is even better than vanadium at keeping grain sizes small, so its addition to the alloy helps increase edge retention without giving up toughness or wear resistance. You can't go wrong with this timeless tool steel. CPM® 20CV Powder Metal Stainless Tool Steel Typical Composition C Mn Si Cr W Mo V 1.90 0.30 0.30 20.00 0.60 1.00 4.00 CPM 20CV is a highly wear resistant, powder metallurgy stainless tool steel. Disadvantages: Relatively difficult to sharpen. Niobium | 0.5% | 0 CPM-S110V exhibits many of the same qualities as S90V. The two steels also have a similar hardness profile on the Rockwell scale - up to 61. Cutting and slicing performance improves as the thickness behind the edge decreases. Heat treat, blade geometry, the job at hand, and the sharpening of the blade all play a massive role in the performance of the steel. When choosing between CPM S35VN and CPM 20CV, the first question to ask is whether you value toughness, or the blade's ability to keep from breaking, over edge retention, or the blade's ability to stay sharp. Knife steels that exhibit extreme hardness and edge retention are amazing at cutting through warehouses full of cardboard but hit a staple and your knife may suffer a chip. O1 is a small step below A2 in terms of blade steel performance. lbs., the transverse toughness of the CPM grades is four or more times that of 440C and 154CM. CPM SPY27 is a steel produced by Crucible exclusively for Spyderco. Whether it’s dicing up cardboard boxes, feather sticking some firewood, or hacking up sisal rope, no one likes a dull knife. The chromium rich matrix provides outstanding corrosion resistance. In 2009, Crucible Steel introduced an update to CPM-S30V to meet the needs of renowned knife maker Chris Reeve that they called CPM-S35VN. For use in a marine environment or other area where corrosion is a concern, the 20CV with its higher chromium content will resist rust and staining better than the S35VN steel. Give this article and each knife steel chart a gander, and you’ll be halfway to an Ivy League degree as a metallurgist (no uhh…not really, but we all start somewhere). S35VN offers slightly lower edge retention, lower corrosion resistance and comes with the same toughness compared to the CTS 204P. There is a reason you see so many knives with those 2 steels. Below is a comparison between S45VN and S35VN where 24 hours is on the left and 48 hours on the right. You can’t go wrong with either of these great steels from Crucible. The main changes we expect from S45VN vs S35VN and S30V are an improvement in corrosion resistance due to the increase in Cr of about 1%. BD1N is a completely different steel. Higher chromium amounts allows some of the metal to form a protective, passive film of chromium oxide that repels rust and prevents staining. I get it. Toughness. This puts them comfortably in the middle-to-high-end of the hardness range for premium knife steels. CPM 20CV an excellent steel for plastic injection feed screws, barrel liners, screw tips and mold cavities, especially for plastic resins which contain abrasive fillers. What's your favorite steel on your pocket knives? The answer depends on what you'll be primarily using the knife for. All steels can get equally sharp! One has the S35VN steel and the other one has M390 steel. If your favorite designer makes a knife in one of these steels, don't hesitate to pick it. in the knife market, because they all offer an excellent balance of performance and corrosion resistance. Available Steels S35vn Vs 20cv Cts Xhp Bladeforums. How Are The Two Steels Similar? 1095 has long been popular among knife makers for its easy workability, high toughness, and good edge holding. Excellent strength and toughness are balanced with very good sharpenability and corrosion resistance. This blade steel exhibits good toughness, but it does not meet the level of M390. Although the longitudinal toughness of all four of these grades is about 25-28 ft. Zero Tolerance, Chris Reeve and Hinderer all make several popular models with S35VN blades. There are a million out there, and this page will surely be updated over time to include more. The addition of molybdenum also helps to keep away corrosion, specifically the type that causes pitting in the steel. I have some limited experience with 204p, and none with 20CV. Toughness. CPM 20CV is one of the best steels for retaining an edge. For a heavy-on-the-science look at carbides, visit Knife Steel Nerds). Crucible achieved the balance by combining a vanadium for edge retention with a high percentage of chromium. No one type of steel is right for every knife, and by fully understanding the differences between popular types of steel, you'll be better able to make the right decision for your next big knife purchase. It is made up of 1.9% carbon, 20% chromium, 4% vanadium, 1% molybdenum and 0.6% tungsten. When we call a normal steel stainless, it really means that the steel will stain LESS than carbon steel. Summary. Vanadium | 3% | 4% S60V, however, was essentially 440C but with 5.5% vanadium added and enough carbon to maintain similar hardness potential. Inherently, more acute sharpening angles will see better cutting performance than more obtuse angles. Equally at home as an EDC folder or as a fixed blade, this blade steel is easy to sharpen, corrosion resistant, and mixes very good edge retention with sufficient toughness. S35VN is a tougher steel, but falls short of 20CV in edge retention. Such amazing corrosion resistance comes at a cost, as this steel doesn't exhibit stand-out wear resistance, edge holding, or toughness. This allows for a very uniform distribution of carbides throughout the steel structure during solidification. The steel looks somewhat similar to S35VN but with increased Nb and N, decreased C and V, and a 1.5% cobalt addition. Maybe one of the most frequently overlooked aspects of blade steel is sharpenability. This premium "super steel" is used in many Benchmade knives and several Hinderer and Zero Tolerance models. Both great steels, CPM-154 benefits from a powdered metallurgy and is finer grained than 154CM. The high percentage of chromium with a bit of molybdenum makes 20CV one of the best high-end, corrosion-resistent steels used in knife blades today. Molybdenum helps to prevent the pitting type of corrosion by lending the steel more strength. 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. CPM Cruwear has held an edge better than S35Vn for me. Edge Retention. Thanks in … CPM 20CV is a steel created by Crucible to be excellent at resisting wear and corrosion, balanced with good toughness. Compared to forged steels, powdered metallurgy based CPM steels have a very fine grain structure and far fewer inclusions. Post navigation. S45VN. This premium "super steel" is used in many Benchmade knives and several Hinderer and Zero Tolerance models. Touching up certain steels with your sharpening stone is an easy, pain-free process whereas harder steels can make for an all-day affair to bring them back to sharp. Popular among both Benchmade and Spyderco, CPM-S90V is a knife steel known for its excellent edge retention and very good corrosion resistance. Blade steel is totally a super important factor to consider when buying a knife, but wait a second—it isn’t the be-all, end-all. Often overlooked is the job at hand. Any of these blade steels are 100% good to rock and roll. Edge Retention (out of 5) | 4 | 5 S35VN is as tough on longitude as 420C (the hardest stainless steel), but five times tougher on transverse so it won't chip or break. Bohler M390 is widely revered as being the best all-around knife steel, which has led top companies to widely utilize it in higher end knives. CPM-20CV. Being able to field sharpen your knife can be the difference between life and death in the wilderness. Realistically, in normal day to day use you would struggle to pick out any differences in comparison. The S35VN and D2 are probably the best balance of edge retention and ease of sharpening. Don’t know 20CV from M4? The resulting steel is expected to have similar hardness and corrosion resistance to S30V and S35VN. S35VN is as tough on longitude as 420C (the hardest stainless steel), but five times tougher on transverse so it won't chip or break. Adding molybdenum increases the strength needed to hold the edge over time, and the added tungsten also helps keep the edge. The finished S35VN steel is made of 1.4% carbon, 14% chromium, 3% vanadium, 2% molybdenum and 0.5% niobium. Carpenter-produced CTS-XHP is one of the most well-rounded and versatile steels. ... Sheet process microtech knives premium and tools böhler m390 steel what is it and why so por cpm 20cv m390 cts 204p bladeforums the best pocket knife for your money informer. Toughness. The higher percentage of vanadium in this steel creates a fine grain structure to better hold an edge. On the Rockwell Hardness scale, CPM S35VN rates 59-61 HRC. The edge retention is likely a small step down from S35VN. The best blade steels exhibit a balance of strength and toughness. In a hurry? It may seem like there’s a big step down between a steel like S110V and CPM 154. According to some manufacturers and knife makers, the 20CV is the best of the three at holding an edge. For use in a marine environment or other area where corrosion is a concern, the 20CV with its higher chromium content will resist rust and staining better than the S35VN steel. The addition of niobium makes CPM S35VN about 15% to 20% tougher than CPM S30V without giving up any durability. An easy to sharpen knife will generally not exhibit excellent edge retention. Spyderco and Cold Steel frequently utilize this steel and the chart below shows why. Updated by Blade HQ Staff Trevor Brown and Andrew Hamilton on 3/1/2019. CPM-3V is, in many ways, the perfect blade steel for a fixed blade knife. Does Bohler-Uddeholm sound like a stinky cheese to you? cpm 20cv vs s35vn. The combination of carbides in CPM 20CV makes the blade tough, but not as resistant to breakage or chipping as other premium steels. (Carbides are hard particles comprised of carbon alloys in the steel matrix that indicate toughness and wear resistance but can be brittle in the wrong combinations. Compare your use cases to choose the perfect knife for you. Extremely tough blades may not cut as well as desired and can suffer from edge rolling and difficulty maintaining an edge. The CATRA test, which measures the sharpness and edge life of a blade by comparing it to 440C, rates CPM 20CV 180% better. Finer grained powder steels can take a sharper edge. S35VN is a tougher steel, but falls short of 20CV in edge retention. The vivid patterns visible in Damascus steel come from the acid etching process in a ferric chloride solution. For a heavy-on-the-science look at carbides, visit Knife Steel Nerds). No one would ever confuse AUS-8 for being premium, but that's okay. They are both difficult to sharpen/reprofile, same as S110V. On the Rockwell Hardness scale, CPM S35VN rates 59-61 HRC. This puts them comfortably in the middle-to-high-end of the hardness range for premium knife steels. And - and this is not a popular opinion - S110V isn't necessarily better than S30V. 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'll be using a larger blade or need something that will work for frequent, heavy duty tasks, the toughness of the S35VN may make it a better choice. The goal of many knife users is to find the best steel to fits their needs. Stainless/Corrosion Resistance. A well-done and consistent heat treat goes a long way towards the performance of a knife. The finished S35VN steel is made of 1.4% carbon, 14% chromium, 3% vanadium, 2% molybdenum and 0.5% niobium. Knives such as the Spyderco Chaparral have a very thin edge at only .014”. If you'll be using a larger blade or need something that will work for frequent, heavy duty tasks, the toughness of the S35VN may make it a better choice. Carbon steels will pit and rust aggressively in wet environments if not properly cared for. Edge Retention. Just keep in mind that knives made from AUS-8 are generally very affordable. There’s no doubt—H1 is a specialty steel. Keep your blade oiled as D2 is prone to rusting and corrosion. AUS-8 steel. CPM-S35VN. Hardness Ability. Hardness Ability. A tough blade steel resists chips and total failure when subjected to beating, impact, twisting, and torsion. The comparison between the two is tough. While they have similar histories and … What is there really to say? 154CM 2.5 ft. lbs. It's comparable to Bohler's M390 stainless steel or Carpenter's CTS-204P and, like those alloys, takes a mirrored finish well. Edge Retention. S30V is, in many eyes, the ultimate EDC steel. Which One is Better? So we can understand more the Steel, let’s see its chemical composition. Powdered steels are more consistent, have better edge retention, and improve toughness due to a lack of inclusions. Becker BK2. This is a small list of steels that aren't necessarily in high production anymore, but still offer high-end or mid-range performance. Remember that in addition to steel, geometry and heat treatment both play a huge role in performance. With slightly decreased edge holding and a tendency to corrode in extreme conditions, O1 performs very well despite requiring light maintenance. CPM S35VN is made with 14% chromium to maximize stain resistance and corrosion without giving up too much toughness. Sandvik steels are largely found on affordable, entry-level knives. The downside is that 20CV can be extremely challenging to properly sharpen. The CATRA test measures the sharpness and edge life of a blade by comparing it to 440C; CPM S35VN is 145% better. Chromium is what gives steel its ability to resist corrosion, but it is less tough and wear resistant than other metals. In head-to-head testing, you would struggle to discern a significant difference between the two knife steels, but under a microscope you will see improved toughness and sharpenability (S35VN is a dream to sharpen when compared to S110V). Molybdenum | 2% | 1% S45VN is somewhat better, especially after 24 hours. Buck widely uses 420HC in their knives to great success. Certain blade steels are more stable at highly acute angels.

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