Marco, BSc Chem. I reserve the right to change my ratings based on new information. 14C28N steel is known to offer among the best if not the best toughness in knife steels out there. Quite an eyeopener! Its high hardness and relatively high toughness also make it an excellent choice in cutlery. D2 steel is high carbon steel with no extra addition of Cr or Mo, that's why it is prone to corrosion. I would think that the label applies to either the line or the outlier, but probably not both unless the outlier is a measurement error. have extremely high edge retention. The study of steel is now so complex and nuanced that one can acquire a graduate degree in the subject and still learn new things every day. In general, higher carbon and higher vanadium steels have higher wear resistance and edge retention but lower toughness. These steels are the good old hard-working steels. I have an article that lists off the major mistakes often made in heat treating. Both knives come at an affordable price for high-end knives. looking at getting a nice larger flipper for a little under 100 AUD. This is an American-made powder steel produced by Crucible and developed specifically for knives with the aid of the knife guru Chris Reeve (maker of the vaunted Sebenza, among other gems). While higher hardness does lead to improved edge retention the bigger reason to have higher hardness is for resisting edge deformation. I was the heat treater, but after HT to only 58-59 hardness the blades went to the surface grinders for finishing and I remember them going into the packing boxes with mirror polished edges. Which one is right for you? Its probably in between Vanadis 8 and 10V. Rex 121 23.5% vanadium carbide, 4% molybdenum/tungsten carbide (M6C), Conventional Ingot vs Powder Metallurgy Carbide Structure. The most balanced is CPM-MagnaCut which is in an area all by itself on the chart. I hope you will find value in the articles on this website. The 8Cr13MoV vs D2 debate. As from features, for presenting d2 continue to grow in the knife industry, generally because of their working performance and reasonable price, a lot of superior low budget knives are building their reputation. The Vargo Sobata 398 is unlike any other knife on this list. Therefore, you cannot purchase the knife for use in corrosive environments. And Michael Fitzgerald, Tim Marais, and Head VI for increasing their contributions. It's more often pitted against the VG10 since both are widely popular high-carbon stainless steel grades. 14C28N steel also has excellent wear resistance due to its high chromium content. In fact, its not technically a steel at all, as it uses titanium and nickel. Ive found that most makers harden S30V too much, making it prone to chipping at the edge. The edge retention and ease of sharpening have been what we expect with D2. Also Mo additions improve corrosion resistance for a given amount of chromium. 1. CPM 154 worldwide, even the chinese have an equivalent (8cr13mov). . I made most of my leather knives from O1v (O1 with .20V) that I hold at 1475 for 15 mins and quench in 120-130 F AAA oil and Kevin Cashen is where those parameters came from btw. If youre having trouble finding the steel you want, see if another manufacturer makes something much like it. 14c28n steel would be a great pick thanks to its high retention and corrosion, it would be great for a normal EDC knife. Been here before? There are significant differences between them because 14C28N is stainless steel, while D2 steel is a semi-stainless tool steel. It gets exceptionally sharp, a nod to its origins as a razorblade steel. Low Carbon steels like AEB-L wont hold up to wood cutting even though it can hit 64 hard, it just doesnt have enough Carbon.. Its a good balance between all three attributes, being relatively hard, tough, and corrosion-resistant. 14C28N VS D2 Attributes: 14c28n: D2 . Without any confusion, you can purchase this set that has a slim, versatile, modified drip-point blade with good slicing capabilities. I was struggling to simplify all the Rockwell/Youngs Modulus stuff for readers when I came across your site. Start comparing steels. Corrosion Resistance: D2 steel has a higher chromium content than 8Cr13MoV, which makes it better at resisting corrosion and wear. It is an upgrade of 12C27, and 13C26 steel initially used to make blades for shaving razors. I have a bachelor's degree in Mechanical engineering with a specialization in material science. High wear resistance steels are more expensive to buy and to process, especially since many require powder metallurgy. We looked at common steels used by popular knife brands to help you select the right material for your blade. 14c28n is the most popular material for the knife: stainless steel and made by the Swedish company. 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. rust resistance.Best of all most knives made from this steel can be had for well under $75.In my opinion Sandvik 14c28n is a better overall steel than that of Aus8,420hc,or ANY of the . Softer steel usually forms larger burrs and they are more difficult to deburr. Another common heat treating choice that is not even categorized as a mistake is tempering in the high temperature regime (~1000F) rather than the low temperature regime (~400F). But its lightyears ahead of the alternatives, specifically titanium-bladed knives. You can see that 64 Rc AEB-L has both lower toughness and edge retention than 61 Rc MagnaCut, so I feel that in general you get a better sense of where the steels fit with a single point. D2 will go through a lot more rope at 58-59 hard than AEB-L will at 64 hard. Its not bad, but you can find better in the market at the same price. 8670 and 5160 are good choices for large knives that need very high toughness. Also known as Z-Finit, Zapp produces this steel in America. It is among the steel knives with exceptional toughness while maintaining excellent corrosion resistance. On the other hand the professional performing blade steels sharpen to a razor edge and hold the edge for an extended use. Edge retention is the ability of a knife to maintain cutting ability during cutting. Many steel ratings articles pay lip service to the importance of heat treatment without providing examples. There is an acceptable range for every element so this doesnt mean that 1084 will always have exactly 0.84% carbon. 14C28N is a stainless steel that was developed specifically for use in knives. I also added a few more steels in this study. See the chart below showing 52100 steel that was overaustenitized (unintentionally) by a knifemaker that sent me specimens for toughness testing. However, I would argue that pure material removal is usually not the limiting step for ease in sharpening. Contact me if you have any questions or input! Sharpening the knives might be challenging, but the D2 knife is high quality and affordable. 14C28N and D2 steel are not the same. The knives can be used in humid and wet environments without rusting. What about K390? High alloy tool steels are designed to be air hardening, so they can be cooled even slower than the oil hardening steels found above. Display: 24 per page Sort by: Featured View CIVIVI Voltaic Flipper Knife Stainless Steel Handle With Micarta Inlay (3.48" 14C28N Blade) $88.30 Add to cart Or is this an argument that tends to be rooted more in the presumption that Japanese steel > Chinese steel than any practical difference in reality? It was originally developed for use as ball-bearing steel by NASA. The main downside is the steel is more difficult to heat treat and cant go harder than about 60 or perhaps 61 Rc. The Sandvik 14c28n steel is ideal for the manufacturing of steel knife blades. you can easily buy a $500 knive made out of 14c28n, which has nothing in it besides cr and a trace of ni. In reality hardly difference. However, Kershaw asked Sandvik to make their 13C26 steel more resistant to corrosion, and the result was 14C28N. I feel like it sharpens as easy as D2. In my experience, it will tarnish and discolor quickly. They were two different tests (different batch of steel, different person heat treating, etc). 8Cr13MoV still has some corrosion resistance, but not as much as D2. Almost all consumer-grade pocket knives, EDC knives, fixed blade knives, etc will be in the range of a Rockwell Hardness rating of 54 to 65 HRC. There are a lot of different types of steel out there . Who looking for latest, high carbon, then the Kershaw Natrix Copper Pocketknife. 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. Pretty interesting that regrinding a knife you already have can seemingly take its performance to that of significantly better steels. Thank you for putting this together, incredibly useful! Why do knives make the best gifts? Even though it has very high hardness, its also still decently resistant to corrosion and quite tough. 14c28n vs. AUS-8 Steel This is basically a retrofit of a very old steel, adding more carbon to the recipe of 420 (hence the HC for high carbon). But if you want to know what the coolest blade material is, for my money, SM100is it. rex 121 at least it has some vanadium over the 420hc. One argument I see consistently leveled against 8Cr13MoV compared to AUS-8 is that of the consistency of the composition. A hunting knife has a singlepurpose: processing meat after akill. All rights reserved. CPM-3V is a powder metallurgy contender in this category. Vanadium carbides are among the hardest that form in steel, and chromium carbides are in between iron carbide and vanadium carbide. Looks like there is no reason to us it over 420HC. The ESEE had significant edge damage while the MagnaCut knife did not. Often used for combat knives. I actually dont recommend that enthusiasts spend all that much time analyzing the exact composition of different steels and trying to guess their properties. But in use, Ive found nothing that withstands the abuse that 3V can take. Here, we break down how to choose a flashlight, including best flashlight LEDs, batteries, designs, and more. AEB-L and 14C28N also have moderate edge retention though of course much lower than vanadium-alloyed powder metallurgy steels like S30V or M390. Most vintage tool blades seem to have been made of 1084/1095 or similar, presumably at some <60 Rc hardness that gave the required toughness, and the rules of thumb for sharpening angles are based on those assumptions. there seems to be an optimal procedure for every alloy (provided its heat treated to industial standards). Because of the material difference, the blades differ in toughness, edge retention, corrosion resistance, and ease of sharpening. . Another important caveat before we get to the ratings are that these are for the steel only. im led to believe tha the melting procedure is more important with these steels than the exact composition. Another very tough and highly wear-resistant steel grade is the D2. The material increase machinability and strength. Spyderco is the only production company using this steel, though Michael Gavik of Gavko knives produced a number of customs in LC 200N. By signing up for email newsletters, you agree to GearJunkie's, Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to email a link to a friend (Opens in new window). The best steels with balanced properties include 4V/Vanadis4E, CPM-CruWear, and CPM-M4. as you mentioned catra indicates the edge angle as being by far the most important variable. This isnt exactly how steel works; different properties are difficult to increase without affecting something else. D2 is another medium-range tool steel. Get for a complete guide about other steel; you can read 14c28n vs 8cr13mov reviews. We should be suspicious of anyone who is claiming very high edge retention with a steel at low hardness and a small amount of carbide. My other knives are a Real Steel E77 8cr14mov. For high wear resistance and edge retention you want a large amount of hard carbides. 14% of Chromium: Increases corrosion resistance and wear resistance. Because of the material difference, the blades differ in toughness, edge retention, corrosion resistance, and ease of sharpening. However, Kershaw asked Sandvik to make their 13C26 steel more resistant to corrosion, and the result was 14C28N. drop point The biggest change that is seen with powder metallurgy in measured properties is in regards to toughness. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. However, it can be somewhat complicated because an edge can dull from many causes wear, micro-chipping, deformation, or corrosion. Ease of Sharpening: One advantage of 8Cr13MoV is that it is easier to sharpen than D2 steel. D2 steel Since the heat treatment is done before you get your knife, and its impossible to tell how good the heat treatment is with your eye, you often must rely on the manufacturers reputation for a good heat treat. Your email address will not be published. Ive seen more talk and some articles regarding the use of AI to come up with new potential drug molecules, polymeric materials, etc. All Rights Reserved. 2. Continue with Recommended Cookies. Most of these steels rely on particle metallurgy and are therefore more expensive. AEB-L is rarely found on production knives but can be found on custom knives easily. This is a virtually stain-proof steel suitable for all sorts of aquatic environments. The ratings I have are for an optimal heat treatment. Steels do come at various price points, however, depending on the cost of producing them and the cost for the knife company to work with them. In the context of a knife this would be chipped edges or broken knives. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); Enter your email address to subscribe to this blog and receive notifications of new posts by email. Knifemakers use dozens of steel types to create knife blades. I wont go into detail about those here. Around 61 Rc usually. It richly deserves its reputation for high-quality gained over the years by Sandvik, a Swedish manufacturer of world-renowned steel. MC66 D2 has been around for more than 20 years, an eternity in metallurgy terms. On the other hand small but mighty, the pocket knife provides both in professional performance and in arresting good looks. This showed that XHP and ZDP-189 have significantly lower corrosion resistance than other stainless steels. n690 European steel company Sandvik produces 14C28N, a non-powder metallurgy steel. Fine-carbide knife steels. These images are taken from my book Knife Engineering. D2 knives, on the other hand, are challenging to sharpen. This steel is quite corrosion resistant and sharpens easily. 14C28N is offered on midprice knives and is one of the better steels on a dollar-for-dollar basis. I also have meat cleaver 1,4116 ,58RC that I order and was looking up if its a good steel or did waist money and need to return it. and why would anyone want to use it when 420HC looks so much better for a simple stainless steel option. As a side note, pure tungsten carbide blades (from brands like Sandrin) can have very high levels of edge retention, but they are not made of steel. Also, if you want a fishing knife, 14c28n steel will survive better in wet areas than D2. High Alloy Tool Steel and High Speed Steel Ratings. And steels with at least 10% chromium are probably stainless, except for several important exceptions like D2 and ZDP-189. However, in our testing there is a reduction in toughness by using the high temperature range rather than the low temperature range, such as was found with CPM-CruWear (Z-Wear) or CPM-10V. How long sharpen? For example, Bohler M390, CTS-204P, and CPM-20CV are all nearly identical and indistinguishable in practice. The ratings in this article rate ease of sharpening primarily based on wear resistance, but if a knife is difficult to sharpen, there may be other factors in play. I have a (relatively) short introduction before getting into the ratings with a few important things to put them into context. On the spreadsheet, youve grouped AUS-8 and 8Cr13MoV. A few steels have been added since such as MagnaCut and M398. The best scenario is when the steel, heat treatment, and geometry are selected for the knife and the use. It is a premium steel that is known for its excellent balance of hardness, corrosion resistance, and edge retention. Steel high in carbides cant be stamped out; it must be cut by a waterjet or laser, which takes time and is more expensive. What makes 1.4116 such a bad performer in regards to toughness on par with ultra high carbide steel like S125V? Most of these steels are carbon steels, except for CPM MagnaCut (the fancy steel cooked up specifically for knives by Dr. Thomas), which has excellent corrosion resistance. The excellent corrosion resistance properties of 14C28N are attributed to the high amounts of chromium in its composition. Youre right I had to check my spreadsheet. Interesting. Vancron has a very fine microstructure so it would be tough to beat. ApexUltra is a steel that we are working on that had excellent properties in small batch production (50 lbs). D2 steel also resists chipping better than most stainless steel types.

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