Hi Larrin, thanks so much for writing this blog and putting so much reliable information into such an accessible form. Sign up to receive GearJunkie content direct to your inbox. On the other hand small but mighty, the pocket knife provides both in professional performance and in arresting good looks. Both steel types don't chip easily, but 14c28n steel is easier to sharpen. Its OK to be a steel snob, but keep in mind that you dont have to if you want a good knife. Thank you for putting this together, incredibly useful! Because of the material difference, the blades differ in toughness, edge retention, corrosion resistance, and ease of sharpening. Steels 7Cr and below arent worth your time or money. A2 knives need care taken to avoid rust and are often coated to inhibit corrosion. I was wondering if the 14c28n sample was also prequenched like the AEB-L toughness samples? Spyderco has produced several production knives with Maxamet, and the steel debuted on the ZT0888. So you can estimate how much a change in hardness would affect edge retention by following the slope of those lines. AEB-L is rarely found on production knives but can be found on custom knives easily. This was not necessarily because of superior toughness but because of the superior strength of the MagnaCut from higher hardness. Both of those things are no longer an issue as I now have way too many articles and a book. That way you can get into the steel ratings quickly. It had better than expected corrosion resistance due to the lack of chromium carbides, a behavior also seen in MagnaCut. But then if you look at an increase of 100 mm in the CATRA test from Maxamet to Rex 121 the toughness only drops 1-2 ft-lbs. What would you rate the toughness of CPM-D2. Each of these contributes to a knifes overall performance. ZDP-189 can tarnish, though not as easily as 3V. Theres a green triangle at about RC 60.5 and toughness over 40. That comes with an excellent return of experience that makes it ideal for the manufacturer of outdoor and tactical knife blades. Many steel ratings articles pay lip service to the importance of heat treatment without providing examples. It can build a knife that sustains a sharp cutting edge for long periods and is sufficiently wear-resistant. Therefore, ensure to wash and dry your knives after use to keep the rust away. I have a few examples below for steels that I have ranges of hardness tested for both toughness and edge retention. I forgot, I got the higher carbon steels will have higher edge retention from this website. Read more. Like 154CM, its a good compromise between all three steel attributes. 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 . Nitro V is also significantly cheaper than many other steels with this level of performance. I have a question about the chart No mainstream companies use SM100, and the niche makers that do usually charge more than $1,000 for knives with SM100 blades. Conventionally produced steels include AEB-L, A2, 52100, 12C27, 14C28N, and AUS-8/,8Cr13MoV. Because of the material difference, the blades differ in toughness, edge retention, corrosion resistance, and ease of sharpening. The difference in properties between 14C28N and D2 steel is very clear. We looked at common steels used by popular knife brands to help you select the right material for your blade. The claim is that they align the blades edge, pushing any slightly rolled over bits back into place and thus preserving the cutting ability of the knife for longer. third and most important is what happened to the burr. I am particularly interested in researching knife steel, knife properties, and brands. 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. It applies to both of course, hence why there isnt a separate label. Approximately the same hardness, yes. Thats a little too far, but you get the point.). The hardness level of steel is determined using a universal scale called the "Rockwell C Test", commonly called the Rockwell hardness scale (HRC). Ive seen more talk and some articles regarding the use of AI to come up with new potential drug molecules, polymeric materials, etc. This is one of the fundamental tradeoffs in steel. Take a look at this edge retention test. I know it's much more stainless and corrosion resisitance, but what about wear resistance? Some steels are cooked up specifically with this in mind and are very difficult to make rust. The reason is because sharpening and edge geometry will also greatly control properties. vanax Keeping in mind that I have a well rounded Set of sharpening skills. There is buzz out there but I havent seen anything solid yet in the world of steel. In other words, heat treating a steel to its maximum hardness does not necessarily mean reduced corrosion resistance. 14c28n vs. AUS-8 Steel 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. how much more can you bend/pry with it? Below shows pictures of a 61 Rc knife that was impacted with a 3/16 rod at different energy levels. Hes already done a three part series on cryogenic treatment: It gets exceptionally sharp, a nod to its origins as a razorblade steel. I guess the question is whether toughness increases faster than edge retention decreases. On the positive side, they are very easy to forge and grind. 2) you do not go into the sharpening in much detail. Steel with high wear resistance is more costly to manufacture, as the knife company goes through more abrasives to grind the knives. and why would anyone want to use it when 420HC looks so much better for a simple stainless steel option. Steels that are improperly heat treated have excess retained austenite which makes them extremely difficult to deburr. But yes, I would assume that the general performance would still be relatively similar between them without evidence to the contrary. Would be great if some manufactures changed their steels based on this information. edge retention can vary by several orders of magnitude depending on what happens to the burr. Pretty interesting that regrinding a knife you already have can seemingly take its performance to that of significantly better steels. However, Kershaw asked Sandvik to make their 13C26 steel more resistant to corrosion, and the result was 14C28N. Its not a regression line, it is just a line through the best steels. A European powder-metal steel used in higher-end knives, Elmax has an advanced formula, and the result is a very good all-around steel, a generation ahead of formulations like 154CM. Because of their good edge retention, these steels are quite versatile in folders and fixed blades. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Ive not seen these used on non-kitchen knives, though, and it seems that if they had real utility they would be used in other knives as well although perhaps on the thinner edges of kitchen knives they are more effective than they would be elsewhere? Cool! imo o lot depends on how the blade is sharpened. 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. However, it is not really known how many different companies are making 8Cr13MoV (or at least I dont know), it could be that it is one manufacturer that is dominating the market. It doesnt hold an edge well, but its so easy to sharpen that you can get it back to razor sharpness in a few minutes. Your email address will not be published. And only Vanax and LC200N have been free from corrosion with a 3.5% saltwater solution, though MagnaCut was close. 2. 14c28n is the most popular material for the knife: stainless steel and made by the Swedish company. A cryo treatment and close temperature control is necessary to achieve those hardness levels. What makes 1.4116 such a bad performer in regards to toughness on par with ultra high carbide steel like S125V? Everyone has their own opinion on what they deem the best folding EDC knife. However, it can be somewhat complicated because an edge can dull from many causes wear, micro-chipping, deformation, or corrosion. 1. Yes its very easy to sharpen but it doesnt hold an edge at all. When describing the characteristics of a steel, a few common attributes are commonly talked about. High alloy tool steels are designed to be air hardening, so they can be cooled even slower than the oil hardening steels found above. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. AEB-L is a non-powder steel produced by Swedish steelmaker Uddeholm. 14C28N steel, also known as Sandvik 14C28N, is stainless steel made by Sandvik, a European steel company in Sweden. Ease of Sharpening: One advantage of 8Cr13MoV is that it is easier to sharpen than D2 steel. Note just because a blade is made from the premium or high-end steels listed above does not automatically mean its better than the lesser steels. the more complex fracture toughness at least lets you make some estimates in this sence. 14C28N is a type of high-performance stainless steel used in knife-making. 14C28N VS D2 The two sheets of steel are comparable in terms of toughness and corrosion resistance. worldwide, even the chinese have an equivalent (8cr13mov). MC66 14C28N vs. D2. 420HC doesnt hold an edge well, but its relatively stain-resistant and tough. But in my experience, it has been nothing but great. The high hardness makes it all but impossible to sharpen and machine. 14C28N knives offer excellent corrosion resistance and toughness. Below, weve listed some of the attributes you might want out of your steel and given some examples in both the more expensive powder metallurgy steels and more affordable conventionally produced steels. If you are a newbie to steel knives and the differences are not yet clear, come with us to the next section as we look into each knifes characteristics, pros, and cons. Many knife enthusiasts are concerned with categorizing steels as excellent, good, poor, etc. quite possibly the best steel youll find on a sub-$30 production knife. This means consumers should be able to maintain these quality knives at home. Nitro V vs 14C28N Last but not least, 14C28N contains comparatively more vanadium elements which makes the carbides more harder and strong, which gives 14C28N a better edge retention. However,M390, CTS-204P, and CPM-20CV are all pretty difficult to resharpen, so maintain that edge! Most of the discussion of how the ratings were generated, various caveats and details, etc. Ah ok that wasnt mentioned. Where the black-finished 1.4116 version has a simple, full flat grind, the D2 version has a compound flat grind that ends halfway up the blade's height. We and our partners use cookies to Store and/or access information on a device. But I think it would have much higher toughness than any of the steels on the chart. Thanks! To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It can dull your edge, cause pitting, and damage the structural integrity of your knife. 440A has more chromium in solution along with a small addition of Mo, but has significant amounts of carbide so the two are an interesting comparison. I've heard d2 is miles better and i dont want to pay 90 for the p135 and get a significantly inferior blade to paying 110 for the D2 Rat. 14C28N knives offer better toughness than D2 knives. They differ little in composition and treatment. It has an HRc over 70, usually even harder than Maxamet. S90V Custom maker Brian Trudeau uses Nitro V, and Massdrops Perpetua design is the first production knife to sport it. In real life, would you expect any presumed increase in deviation from the specified formula, as well as the effects of said deviation, to negatively impact the performance of 8Cr13MoV to any truly noticeable degree? There was significant sharpness loss with 1095, almost none with 440A, and D2 was in between. It can withstand a lot of wear and tear. Its very tough and exceptionally corrosion-resistant. CROMOVA The brand designed it as a carbide replacement. Vanadium carbides are very large with conventional production of steels but are very small with powder metallurgy. The definition of a quality knife differs among users because of varied needs, but there are basic properties that every quality knife must have. Its exceedingly tough and relatively hard, but its not stainless. most knives are being made out of these and other mediocre steels like 14c28n, 420j2, 425m. There are significant differences between them because 14C28N is stainless steel, while D2 steel is a semi-stainless tool steel. The 1.4116 I tested has large carbides in it which is presumably the reason for low measured toughness: https://knifesteelnerds.com/2019/05/26/new-micrographs-of-42-knife-steels/. There are a few other complicating factors such as carbon in solution and plate martensite, especially in low alloy steels such as described in this article. So what is the best steel for knives? They have many similarities, including their high hardness, strength, and wear resistance.
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