The solid lockup and decent blade design make these two knives well suited for camping. Ive found that most makers harden S30V too much, making it prone to chipping at the edge. It boasts an incredible ability to continue cutting long after it seems dull. And its not made of steel. Required fields are marked *. I also added a few more steels in this study. 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. It mainly made for knife and it high in Chromium for excellent corrosion resistance. 440C steel Corrosion is not just about cosmetics and rusting, however, but can also affect edge performance. And Mn and Si isnt shown at all for the high alloy steels, even though those elements are added to all of them. It shows 3 stainless steels from 750-800tcc but the edge retention graph only has 1 SS in that range, S90v. For example, see the chart below for how much edge retention can change with edge geometry for a single steel (in this case 154CM and CPM-154). Take a look at this edge retention test. Thanks. Some steels are cooked up specifically with this in mind and are very difficult to make rust. 420HC, 420, and 5160 all offer off-the-charts toughness. That mixture has one goal in mind: making a great steel for people worried about rust and corrosion. 14C28N is offered on midprice knives and is one of the better steels on a dollar-for-dollar basis. They make excellent everyday carry steels, especially for light- and medium-duty tasks. And only Vanax and LC200N have been free from corrosion with a 3.5% saltwater solution, though MagnaCut was close. The steel comes with increased wear and abrasion resistance properties. The blackwashed D2 steel blade of the Kershaw Cannonball offers pretty good corrosion resistance for D2. 14C28N steel is known to offer among the best if not the best toughness in knife steels out there. So you can estimate how much a change in hardness would affect edge retention by following the slope of those lines. i understand the samples were treated in the same way. I also have a video that summarizes some of the information below while also showing how some of the experiments work. This is a powder steel produced by American steel company Carpenter. 14C28N Leek: D2 Leek: jonnymac44 Joined Sep 27, 2007 Messages 7,674 Oct 21, 2008 #2 Hey Michael, First off, the new 14C28N from Sandvik is just now hitting the streets, and I don't have any results just yet for you. This is a virtually stain-proof steel suitable for all sorts of aquatic environments. There is no single category that means that a steel is more premium or better than another. What is AUS10A Steel? - knife Insight Therefore powder metallurgy is not necessary for certain steels, or could even be slightly detrimental. -> Maybe prequenched 14c28n could be a little tougher than AEB-L? Let's compare 14c28n steel with other steels, and for this, I use four criteria; Edge Retention, Corrosion resistance, Ease of Sharpness, and Toughness and on a scale of 1-10 (10 being the highest) let's see the performance of each steel. Wusthof Classic Ikon 8-Inch Cooks Knife Review, Victorinox Fibrox Straight Edge Chefs Knife Review, What is Cts bd1 steel? When the blade gets messed up I just replace it. Nitro V is also significantly cheaper than many other steels with this level of performance. I wrote an article about knife steel ratings available online in 2018, where I concluded that none of them were very good. The steel is susceptible to overheating during hardening do not overheat. These steels are typically used by forging bladesmiths, traditional folders, and some production fixed blades. Read our full Sobata 398 review here. Generally this is code for difficulty in abrading away steel. Here, we break down how to choose a flashlight, including best flashlight LEDs, batteries, designs, and more. 14C28N knives are easier to sharpen than D2 knives. To reiterate the clearer part, I wonder if toughness increases faster than edge retention decreases as an edge gets thicker. The high hardness makes it all but impossible to sharpen and machine. Poor heat treatment can make a knife too hard, too soft, hard to sharpen, easy to deform, or cause other issues. Is 14C28N Steel Good Steel? - Knifebasics But as the market has grown and newer steels have come out, it has fallen in price and prestige. Many steel ratings articles pay lip service to the importance of heat treatment without providing examples. 14C28N Lets talk about the clip-on pocket knife. So for most steels they are given a rating at around 59-62 Rc, apart from a few steels that are never used at that hardness. Compared to the AUS10A, the D2 has a longer legacy since it's been around since 1918. This is one of the fundamental tradeoffs in steel. Its an update of its 12C27 and 13C26 steels, which were developed for use in shaving razors. I am particularly interested in researching knife steel, knife properties, and brands. . YMMV The D2, on the other hand, has a thicker and more durable blade that is better suited for tough tasks like chopping wood or prying open cans. Its soft, with very low carbon content. Its in the same class as Vanadis 8 and 10V. What it is: 14C28N is a Sandvik stainless steel commonly used in razors and kitchen knives. Save my name, email, and website in this browser for the next time I comment. See the chart below showing 52100 steel that was overaustenitized (unintentionally) by a knifemaker that sent me specimens for toughness testing. If you want to check the quality of my work, just search for The EDC Bible on Amazon. 2. This was described in this article on Vanax heat treating. Even premium steels can have poor performance with poor heat treatment. Vancron would work well in a kitchen knife. Below shows pictures of a 61 Rc knife that was impacted with a 3/16 rod at different energy levels. Liquid steel is sprayed through a tiny nozzle, solidifying into a powder. AEB-L is a non-powder steel produced by Swedish steelmaker Uddeholm. It was your original article on ratings that brought me to knifesteel nerds so its great to see your results put back into a form that will no doubt be distributed \ plagiarized widely, hopefully leading to more rational thought and better understanding by the knife consuming public (not that the misleading marketing will go away). Sandvik 14C28N steel is better than D2 steel in corrosion resistance and toughness. 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. When it comes to handle material, both knives have options available in either plastic or metal. H2 Its not bad, but you can find better in the market at the same price. Metallurgy and Testing of Knives and Steel. There is an acceptable range for every element so this doesnt mean that 1084 will always have exactly 0.84% carbon. blue steel D2 has been around for more than 20 years, an eternity in metallurgy terms. It also improves edge retention and strength. 440A What would you rate the toughness of CPM-D2. In general, higher carbon and higher vanadium steels have higher wear resistance and edge retention but lower toughness. Its actually quite good, low-cost steel that performs like midprice steel. I like it in the Seki City Spydercos, but I would like to know what ratings you would give it. Not to sound like a ship, but these two knife inspiration makes this an eye-catching knife. The steel loses some of the chromium in solution for corrosion resistance to form these fine carbides for hardness. For decades, different steels have been made to fit this category. Knife Steel Guide - Knife Life - Blade HQ I would love to see a Tungsten-Carbide blade (like Sandrin is using) and how it compares for Edge Retention, Toughness and Corrosion Resistance especially how it compares to s90v. at least it has some vanadium over the 420hc. D2 steel is a ordinary tool steel and knife steel. More expensive powder metallurgy steels in this category include M390, CPM-S35VN, Elmax, CTS-XHP, CPM-S30V, and CPM-154. As wear resistance is increased the differences between conventional and powder metallurgy steels become greater. Very much appreciate you. The vivid patterns visible in Damascus steel come from the acid etching process in a ferric chloride solution. 14c28n is the most popular material for the knife: stainless steel and made by the Swedish company. Hammering through hickory, digging at roots in sandy soil, and cutting around bone did nothing to chip, dent, or roll the edge of my 3V knives. MagnaCut Uddeholm lists it as somewhat worse in toughness than A2 but somewhat better in wear resistance. Different heat treats have emerged over the years, but one has risen to the top as the best:Bob Doziers D2. 9Cr18MoV Steel: Full Details and Review - Bud Nealy Knife Maker S35VN The line is only in the neighborhood of 5 of the datapoints. I test corrosion resistance of steels by heat treating 1 x 1.5 inch coupons, finishing to about 400 grit, and then spraying with water. Sandvik later came out with 14C28N which is a slightly improved version of 13C26. I was just comparing AEB-L and 14c28n to decide which steel to get for my next knife project and although 14c28n seems to be a bit more abrasion resistant, my primary goal is toughness and edge stability. The bump in hardness comes from precipitation of fine carbides in the steel, which include chromium carbides. It had better than expected corrosion resistance due to the lack of chromium carbides, a behavior also seen in MagnaCut. Hi there, It applies to both of course, hence why there isnt a separate label. The biggest factor for cost of knife steel is whether it is produced with conventional ingot technology or powder metallurgy. Because of its difficulty in sharpening and machining, its very rarely used and comes with a high price premium. W-2 Knife Steel Benefiting from 0.2 percent vanadium content, W-2 holds an edge well and is reasonably tough. Steel softens as tempering temperature increases, but certain steels see an increase in hardness in a certain higher temperature range such as shown below for high speed steels that are designed for this type of tempering: This high temperature tempering can be done for several reasons, such as better resistance to overheating during grinding, or because a coating will be applied to the knife that requires a high temperature. The excellent corrosion resistance properties of 14C28N are attributed to the high amounts of chromium in its composition. ApexUltra is a steel that we are working on that had excellent properties in small batch production (50 lbs). Now that is power planer blades, but the principle stands, less carbon and alloy isnt the best for wood working and Id use a steel like 26C3 (1.25% C .30%Cr) for my hand tools and temper them to around 62 hard and use the best angle for wood shaving, not the best angle for cutting rope. great work, larrin. we dont know. While 14C28N and D2 are both pretty to look at, buyers always regard one over the other. Below shows charts summarizing tests of different steels for the major categories discussed so far, low alloy steels, high alloy non-stainless steels, and stainless steels. Edge retention is the ability of a knife to maintain cutting ability during cutting. Spyderco is the only production company using this steel, though Michael Gavik of Gavko knives produced a number of customs in LC 200N. Though technically not a stainless steel due to its composition, in use it performs exactly like one. What about K390? Powder metallurgy steels with low vanadium content like CPM-1V and Z-Tuff/CD#1 have extremely high toughness. I guess that was before I started reading. But if when youre searching for tough steel for your outdoor experience camping, or hunting, it would be perfect steel but not the best choice therere other steels with better than toughness that would suit your usage. Thats why it easy to work and looks nice. Larrin, thank you for this. CRKT and Spyderco use BD1. Thats a little too far, but you get the point.). However, Kershaw asked Sandvik to make their 13C26 steel more resistant to corrosion, and the result was 14C28N. Jeff I worked at a company that heat treated D2 (1.55% C) planer blades for a company that built wood working equipment for commercial shops. While 9Cr18MoV steel is highly corrosion resistant due to the addition of Cr, and Mo. Very obtuse edges resist chipping better but dont hold their edge as long and dont cut as well. 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. It will take you more time and energy to get a sharp edge, but your efforts will pay off because the blades hold the edge longer. It is certainly possible for a knifemaker or heat treating company to do a heat treatment that will have suboptimal properties. Im a layman trying to understand what makes the best steel for my use. you can easily buy a $500 knive made out of 14c28n, which has nothing in it besides cr and a trace of ni. LC200N has similar properties to those two but with saltwater levels of corrosion resistance. Monday-Friday A cryo treatment and close temperature control is necessary to achieve those hardness levels. D2 is mainly considered decent budget steel that comes with better edge retention than the 14C28N. Thanks! D2 seems to run at high hrc. Thanks to its very high hardness (64-66 HRc compared to the average of 58-62 HRc), ZDP-189 can be ground thinner and sharpened less often. This is especially important for chopping knives and for knives with thin edges for enhanced cutting ability and edge retention. To choose the best knife for you between the 14C28N and the D2, look at the steel properties and ensure that they suit your knife needs and lifestyle. Is Vancron SuperClean a good choice for a chef knife? 8Cr13MoV still has some corrosion resistance, but not as much as D2. Copper frame are very sturdy and machine well and take the best patina over time. They made planer blades out D2 for its edge retention. The knife Natrix with substantial copper handle is a deceptively hefty EDC. A2 knives need care taken to avoid rust and are often coated to inhibit corrosion. [Steel Knife Review], What is 14c28n steel? It rusts like nothing Ive seen before and it dull just by looking at it. Toughness and edge retention are generally opposing properties and it is difficult to improve both of them at the same time. An example of data being processed may be a unique identifier stored in a cookie. 9Cr18MoV steel Review - Everything You need to Know - Materials Today Available in Kershaw knives (as of 2012) and in other . it seems like all the pieces are in place to develop an algorithm for this. A new steel from Crucible, SPY27 launched in 2020 in the Spyderco Native 5and Para 3. Is there some way we might predict the relative "effective toughness" of different steels at different hardness and at different edge angles? Working closely with our factory the heat treating of this steel has been perfected resulting in excellent performance for the price. And below shows a chart of carbide hardness, the equation we created to predict edge retention based on edge angle, hardness, and carbide volumes, and then the chart showing the good correlation: TCC (mm) = -157 + 15.8*Hardness (Rc) 17.8*EdgeAngle() + 11.2*CrC(%) + 14.6*CrVC(%) + 26.2*MC(%) + 9.5*M6C(%) + 20.9*MN(%) + 19.4*CrN(%). I wont go into detail about those here. Most of the midrage ifferings have 14c28n, how does it compare to d2 in your experience? H1 and 420 also have excellent corrosion resistance but are limited to lower hardness and edge retention.
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