Edit 11192020 Since the release of this article I have experimentally evaluated M398, which you can read about here. Without reservation, I can say this is the biggest study on the performance of pattern-welded Damascus that has ever been performed. A recommended heat treatment would be 1850-1900&176;F for 30 minutes, plate quench, cryo, and temper 300-500&176;F. The first study used 1075 and unique compositions with a base carbon content of 0. Go to the bottom of the article to see them. Edit 11192020 Since the release of this article I have experimentally evaluated M398, which you can read about here. and I am surprised I hit the knife steel nerd mark, since I am a networking engineer, and most of my experience is not steel related, so I guess lately I have been spending more time in the knife community channels, and frankly metallurgy I find the most fascinating topic of all the pieces involved. Knife Steels Rated by a Metallurgist Toughness, Edge Retention, and Corrosion Resistance. Blade Show is almost here The biggest knife show in the world is always a good time, and I will be there again. The steels are ranked from worst to best in the chart below. Knife Steel Nerds coffee mugs have been shipped to all current Ultimate Steel Nerd Patreon supporters. Tungsten was very expensive and only available to mine in certain countries and so during war it could be difficult to obtain. As you can see this was a big year despite the many challenges that we experienced in 2020. Many of their pocketknives are now D2 or S35VN and their premium fixed blades have now switched to S35VN as well. 2 thoughts on Heat Treating and Processing Terry Weaver says November 22, 2019 at 230 pm I consider this site an excellent source for information, I learn something every time I visit. 19C27 also has many small carbides with some larger primary carbides. In the early-to-mid 2000&x27;s with digital cameras and somewhat more recently with smartphone cameras we had the battle of megapixels. com Mar 3, 2022 12 Corey Paulsen (teamkabob) WKR. The Story of Knife Steel - Innovators Behind Modern Damascus and Super Steels. S30V Background. The steel was donated by Chuck Bybee of Alpha Knife Supply. I previously wrote about the history and properties of 52100 in this article. Knife Steel Nerds. Originally used by alchemists to describe the process of extracting metals from rocks and minerals, the term Metallurgy encompasses a host of science and engineering disciplines which study, test, and create new metal alloys. Thanks to Patrick Gosselin for becoming a Knife Steel Nerds Patreon supporter. Optimum heat treating of CPM-154 was found to be 1950&176;F for 30 minutes with a plate quench and cryo. The video on making a knife out of cardboard has over 20. cryo (hrs) temper (F) 8670. Thanks to Knife Thoughts, Nicholas Rossi, Jason D. Exciting stuff Invented by Larrin. Starting at. The liquid steel is dripped through a nozzle and is atomized by liquid or gas sprays that near-instantly solidify the steel as powder. Oct 10, 2020. That results in 58. I have also shown 10V and 4V below for comparison. This steel is also known as 1. 3pcs set. The edges tested with more acute angles (20 edge is more acute than 50) started out cutting better and remained that way through the standard 60 cuts. I am always impressed by the huge amount of qualified output he realizes in short period of time. CPM CruWear steel is a good knife steel considering its high hardness. The steel was available as 14 flat stock either 1, 1-14, or 2 wide, or as 1-18 round bar. Exotic Woods. 52100 Steel. CPM-15V with 2910F atomization temperature - large carbides 1 CPM-15V 3020F atomization temperature - small carbides 2 While the carbides were kept relatively small all the way up to CPM 20V, the high carbide content. Thanks to the new Knife Steel Nerds Patreon supporters Hunter Chen, Claas, Curtis Fowler, Saptak Dutta, Tracker Dan, Paul Pedrazzi, 150LAT10N, James Kane, Vincent Franchino, and Jack Bashear. Normalize at 1750F950C for 10-15 minutes, air cool. I wrote about my first large batch of 48 different steels (some with multiple heat treatments) in this article. When the chromium is in the form of a carbide it is not able to form an oxide at the surface. History of Vanadis 8. After 1100F the steel can be furnace cooled or air cooled it doesnt matter. According to KnifeSteelNerds, Crucible developed 154CM back in 1959 as a high-speed stainless bearing steel. Knife steels can be broadly categorized as "water hardening," "oil hardening," or "air hardening. Thanks to Russ Andrews for sending me the article. Crucible, or Wootz, steel was first produced in India and Central Asia and produced into swords anciently from at least the 3rd century AD 1. As a knife maker, I can tell you steel is 10 of the cost, handle mat&x27;ls (G-10 or micarta) is 10, exotic woods could add 75 to 100 net, labor is 50, shop expense (rent, power, insurance) 20, and profit, if any, is 10. The P and S content were similar between the two, phosphorus a little lower in the USA version but sulfur a little lower in the European version. The Blackfoot 2. Since both of those steels have 4 vanadium, the chromium carbide hardness is increased somewhat because the. Normalize at 1750&176;F950&176;C for 10-15 minutes, air cool. Ranking knife steels based on my own (limited) experience. AEB-L Heat Treat Information Preheat Heat to 1,560. Liquid nitrogen treatments are often called cryogenic treatments, where cryogenic refers to any temperature below about -150C. Dec 17, 2023 The P and S content were similar between the two, phosphorus a little lower in the USA version but sulfur a little lower in the European version. 4 thoughts on "Steels" Greg Kerce says March 22, 2020 at 947 am Thanks for what you are doing. When the steel is cooled slowly from the high temperature austenite phase, the carbon precipitates out so that the low carbon ferrite phase can form, leading to a soft, low hardness steel. The super hard high speed steels (>68 Rc or so) are interesting from the standpoint of knife enthusiasts and knifemakers, particularly since knives are so often produced in. S110V is essentially a modified version of S90V or S125V designed for improved corrosion resistance when compared with those steels. K390 is a powder metallurgy non-stainless steel with high wear resistance due to very high vanadium, 9. Higher the number the better. January 8, 2021. With each I overheated the steel at 2100&176;F1150&176;C for an hour to simulate forging, normalized at 1550-1700&176;F for 10 minutes and air cooled. 25 Cr for improved corrosion resistance. Steel Hardness. Of course, keeping the knife as close to the furnace thermocouple as possible leads to a temperature as close as possible to the setpoint. Equalize temperature. Hardenability is not a measure of how hard a steel can get. Marco achieved a very excellent improvement in toughness of 1. The SM-100 brand of Nitinol, like its forerunner, is extremely tough. It was designed in the US and is typically used for the high-end premium pocket knives and expensive kitchen cutlery. Forging, normalizing, annealing data for 52100 from the Heat Treaters Guide app. May 24, 2021 Microstructure. We used a heat treatment of 1950F for 15 minutes, plate quench, liquid nitrogen cryo, and temper at 400F. First of all, the Knife Steel Nerds website was started, with the first article being posted February 27, 2018. Reply Larrin says March 22. There&x27;s empirical edge retention (wear resistance on Catra testing) and toughness test data, and even a little for corrosion resistance. New Steel for Artisan Cutlery AR-RPM9. The Mo-free AEB-L had relatively poor corrosion resistance when compared with these other steels. When the steel is cooled slowly from the high temperature austenite phase, the carbon precipitates out so that the low carbon ferrite phase can form, leading to a soft, low hardness steel. Next post Knife Steel Nerds at Blade Show Atlanta. The steel has been around since 1905, has been known as 52100 since 1919, and has been used in knives since at least the 1940&x27;s. Knife Steel Nerds is run by Larrin Thomas, a steel metallurgist known for his website KnifeSteelNerds. The quenching process, martensite formation, and supersaturated carbon leads to brittle steel. I am somewhat tempted to re-write large chunks of that article here because H1 is one of the most. Simple steels like 10801084 have the narrowest range for optimal temperature-time combinations in terms of hardness and toughness. Transformation to austenite is the more common reason for becoming nonmagnetic with low alloy tool steels that are often heat treated with a forge or torch without good temperature control. Diamondblade Knives is a sub-company of Knives of Alaska. Diamondblade Knives is a sub-company of Knives of Alaska. Like many other very high wear resistance stainless steels (S90V, M398) it was developed for plastic injection applications. Here are current charts for toughness on all of the steels we have tested here at Knife Steel Nerds along with the help of several knifemakers and machinists to make the samples for testing. Spyderco zdp189 metal information as I&x27;m looking to swap to a custom set of replacement blades for my titanium scaled Byrd 8cr. Theres also plenty of chromium in there to make it stainless. Evaluating which knife steel is better than another is not easy with all the different manufacturers and using different evaluation. Discuss Spyderco&x27;s products and history. Mar 22, 2023 Heat Treating 15N20, L6, or 8670 with a Furnace. Best Value Gerber StrongArm and LMF II. I wrote about my first large batch of 48 different steels (some with multiple heat treatments) in this article. The only non-stainless steels with higher edge retention either have higher vanadium (CPM-15V) or are 70 Rc PM high speed steels (Z-Max, Maxamet, Rex 121). Johnson, Daemon Lindenmayer, and David Olkovetsky for becoming Knife Steel Nerds Continue reading 154CM Development, Properties. Nitro-V Steel. See the steel rating charts and read more discussion about the ratings here httpsknifesteelnerds. While both are machinable, the S30V shows superior properties of machinability compared to VG10. Thanks to Guns N&x27; Loaded for becoming a Knife Steel Nerds Patreon supporter. The steel was developed by Maria Sawford as a modification of S30V by reducing the vanadium content, adding 0. This was the condition that I used when heating to nonmagnetic in the forge and quenching in Parks 50. The proportion of the vanadium carbide (VC) matters as VC is harder and contributes more to wear resistance. So far, we have only tested the toughness of the new steel at high hardness, 65 Rc and above. Anneal at 1400F for 30 minutes, cool at 600Fhr to 1200F, air cool. If you can edc a fixed blade, that would be the way to go. Sep 2, 2018 Knife Steels Rated by a Metallurgist Toughness, Edge Retention, and Corrosion Resistance. The more recent study focused on 80CrV2. H1 is known for being a very high corrosion resistance steel used primarily in Spyderco&x27;s Salt line of knives. ZDP-189 is a steel produced by Hitachi and Cowry-X is produced by Daido. With this report I would like to support Larrin and the knifesteelnerds community. When the chromium is in the form of a carbide it is not able to form an oxide at the surface. A 420HC steel at 56 Rc with 3 chromium carbide (CrC) at the same angle of 30&176; is predicted to only get 227 mm. 001" across 12". When we last left steel history, the first high speed steels had been developed which had led to an explosion in steel development. Thank you new Patreon supporters Thomas Walz, Scott Fletcher, Cory Phillips, Mark Rinella, Brandon Hampton, and kitegem. Is this a real effect. "CPM MagnaCut is the result of my passion for knives and steel. As the writeup makes clear, SPY27 is designed to be a good all-around knife steel that. Thanks to Tim Marais, Daniel DeRosia, Jess Hoffman, David Rogers, Mo, John Macklis, and R. The Story of Knife Steel Innovators Behind Modern Damascus and Super Steels. History of Vanadis 8. Since both of those steels have 4 vanadium, the chromium carbide hardness is increased somewhat because the. Quality G10 knife Handle with Pocketclip, overall grip feeling comfortable, bright color, insulation, corrosion resistance, wear resistance. Without reservation, I can say this is the biggest study on the performance of pattern-welded Damascus that has ever been performed. History of Vanadis 8. The initial tests were performed with 20 single bevel edges A series of 10 indentations were performed on each edge and the extent of deformation or chipping was measured. This past week I did a quiz on my site to get a feel for the level of knowledge of my readership (or at least the ones that take quizzes) and of course for fun Take the Quiz Here. Crucible Tech Desk available at -. It&x27;s a 440B modified steel that contains 0. Steels like it have been around basically ever since the invention of steel. The steel was then tempered at 300, 350, 400, or 450F. The steel must be heat treated to get to a hardened state. 19C27 also has many small carbides with some larger primary carbides. update I have added a set of supporting micrographs to the introduction to Austenitizing steel. Thanks to Ian Rogers for becoming a Knife Steel Nerds Patreon supporter. Anneal by heating to 1450F for 15-30 minutes, cool at 100Fhr (55Chr) to 1100F. The K190 was austenitized at 1070C1960F and the M390 from 1150C2100F, but otherwise heat treated the same. I wrote about my first large batch of 48 different steels (some with multiple heat treatments) in this article. Unlock 255 exclusive posts and join a community of 459 members. Rockwell C Hardness. A2 steel is quite old, though determining the exact year it was released is a bit difficult. CPM MagnaCut is a brand new stainless that has the durability and toughness of 4V with the corrosion resistance of S30VN. These sizes were chosen to favor forging, and are on the thick side for stock removal, which makes sense given the target customers of the grade. There are three primary goals of annealing steel Make the steel machinable so that it can be easily cut, drilled, and ground. Runyon was attempting to get nickel powder to stick to cable to produce a nickel-infused cable Damascus. The temperature at which this drop in toughness occurs is called the Ductile to Brittle Transition Temperature (DBTT) which is about -75C for the 0. Unlock 257 exclusive posts and join a community of 359 paid members. These sizes were chosen to favor forging, and are on the thick side for stock removal, which makes sense given the target customers of the grade. This steel was developed by Dr. Crucible has been a part of the knife steel industry for many decades, such as with steels like 154CM which was developed in the late 1950s and gained popularity in knives through Bob Loveless in the early 1970s. Sara Rempelos, Theo N, Christopher Kuehl, Dirk Hoogenbosch, Nick, nats spawnee. That video hit home. Common Use Case Entry level to premium grade blades. Some of the steel I used was donated by. This was compared to tempering at 400 degrees Reply Larrin says November. However, if the steel is cooled rapidly. 5rc for 3 readings. The steel is heated to a high temperature phase called austenite, where carbides are dissolved and carbon goes into solution in the austenite. Categories Retail. There&x27;s empirical edge retention (wear resistance on Catra testing) and toughness test data, and even a little for corrosion resistance. At the end of the test the 20 edge had a larger edge width than the 50 edge, which indicates that it had lower sharpness than the 50 edge. This resulted in 61. Subzero refers to any temperature below 0C. And Daido has DRM1, DRM2, and DRM3. Having other people take images is a slow and expensive process. That&x27;s understandable since that 11. Their CPM goes to Niagra Metals for rolling and they cross roll the steel. Grain refining cycles can be done from 1450&176;F. 6C and 16. I had another set of blanks cut out ready to heat treat basically right after that article was released but it has taken some time until they. Steel comes forged and annealed from the manufacturer so if the blade is being produced for stock removal the steel is ready for drilling, grinding, and heat treating. Thanks to Roberto J. Be careful of anyone who says the way to heat treat 1095 or O1 is to heat to non-magnetic and quench in used motor oil. 0 Rc. Anneal by heating to 1450&176;F for 15-30 minutes, cool at 100&176;Fhr (55&176;Chr) to 1100&176;F. Legendary Heat Treatments. The edges tested with more acute angles (20 edge is more acute than 50) started out cutting better and remained that way through the standard 60 cuts. The new steel was austenitized at 1130C2065F and quenched in oil, cold treated at -80C and tempered twice at 180C350F. Edge geometry is same, so now obviously the more abrasion resistant steel (more chromium carbides, maybe also molybdenum and vanadium) has longer edge retention. Last week I wrote about What a Good Heat Treatment Can and Cannot Do, and as part of that topic I wrote about how some knifemakers have a legendary or even mythical reputation for. Normalize at 1550-1600F for 10-15 minutes followed by air cooling. May 9, 2023 K390 Steel and Heat Treating Background. Quench Plate, air or positive pressure quench to below 125F. After I posted the article I was informed about a new Damasteel product that Continue reading New Steel Analysis. We carry a variety of different thicknesses up to 18 and have found that even 15N20 on its own makes great knife steel. 19C27 also has many small carbides with some larger primary carbides. 18 people found this helpful. Last edited Nov 26, 2018. 80CrV2 has 0. However, the toughness in this hardness range is stellar. But if the steel with smaller carbide crystal size allows you to sharpen to a smaller angle, say 10 degrees (per side. Legendary Heat Treatments. 75, and a factor for 0. Books Knife Steel Nerds Larrin Thomas New for 2023. The steel was donated by Chuck Bybee of Alpha Knife Supply. To reduce the brittleness, the material is tempered, usually by heating it to 175-350C (347-662F. Knife steels can be broadly categorized as "water hardening," "oil hardening," or "air hardening. Some of the better known knife steel manufacturers include Crucible (S30V, S35VN, CPM-3V, CruWear, CPM-M4, 154CM), Carpenter (CTS-XHP, CTS-BD1N, Maxamet), Hitachi (White 1, Blue Super, ATS-34, ZDP-189), Uddeholm (AEB-L, Elmax, Vanax, Vanadis 4 Extra. 5 chromium carbide. An improvement in edge retention may result from a slightly higher hardness and slightly higher fraction of carbide. The vanadium also means that we will see relatively good wear resistance for the steel, given its level of wear resistance. Thanks to Dan Pierson, Steve R. 3 Rc and 2150F resulted in 65. The company Sandrin produces knives out of cemented tungsten carbide. Therefore very high hardness levels are possible for those knifemakers that are interested. The video on making a knife out of cardboard has over 20. One of my favorite parts of Knife Steel Nerds has been researching the. At the end of the test the 20 edge had a larger edge width than the 50 edge, which indicates that it had lower sharpness than the 50 edge. John Verhoeven. Thanks to the new Knife Steel Nerds Patreon supporters The newly performed research in this article is all paid for through Patreon funds, such as the purchase of expensive Damasteel. Some of the better known knife steel manufacturers include Crucible (S30V, S35VN, CPM-3V, CruWear, CPM-M4, 154CM), Carpenter (CTS-XHP, CTS-BD1N, Maxamet), Hitachi (White 1, Blue Super, ATS-34, ZDP-189), Uddeholm (AEB-L, Elmax, Vanax, Vanadis 4 Extra. Equalize temperature. microsoft office cmd activation 2022, dataroma
High carbon steels (0. . Knifesteelnerds
This may slightly reduce the corrosion resistance of H2 but it is probably made up for with the increased molybdenum. The toughness is very close to S35VN. I previously wrote about the history and properties of 52100 in this article. All data sourced from Knife Steel Nerds. Typically forging bladesmiths have restricted their steel selection to low alloy steels like 1095, 1084, 5160, 52100, O1, etc. Data from 9 So if the steel had 1Mn the Mn multiplying factor would be about 1. I see frequent references to super steel online, and I was curious about how long that terminology has been around. How to make the highest performing knives. Setup the steel for austenitizing and quenching (hardening) so that is has good heat treating response. However, somewhat surprisingly the oxygen content of the USA version was the. The finer carbide structure of PSF27 provides superior toughness vs conventional D2. Both knives sharpened to, say, 15 degrees (per side) angle. Tool steel was invented in the 1860&x27;s, but really took off from some incredible developments in the 1890&x27;s and early 1900&x27;s The History of the First Tool Steel. The material is sometimes called tungsten carbide or even just carbide as. This is a common material for machining due to its high wear resistance, strength, stiffness, and hot hardness (resistance to softening at high temperatures and speeds). Kelley for becoming Knife Steel Nerds Patreon supporters We only need a few more for 150 supporters Super Hard High Speed Steels. Subzero refers to any temperature below 0&176;C. Here is a schematic diagram of the major elements of an edge 1 First is d, the thickness behind the edge; the thinner the material is behind the edge the smaller the wedge is. During rapid quenching Continue reading Nitrogen-Alloyed Knife Steels. 5 x 0. A2 steel was developed in the early 20th century during the explosion of tool steels that occurred after the discovery of. Nitrogen-Alloyed Knife Steels. I wrote about my first large batch of 48 different steels (some with multiple heat treatments) in this article. Here at Pops we have found that one of the best knife steel resources in the world is run by Dr. Typically nitrogen is used in the production of tool steel. Larrin Thomas also has a blog called Knife Steel Nerds that is worth checking out. Normalize at 1750F950C for 10-15 minutes, air cool. But with a higher hardening temperature the grain would grow and they would be. Rodriguez and J. Another steel in the Continue reading Silicon Additions for Improving. Edge Retention. I really appreciate your science-based approach to demystify so many issues. The steel was then tempered at 300, 350, 400, or 450F. Jimmie P. We covered some of the elements in steel in episode 006 and went deep into heat treating on show 007. Discuss Spyderco&x27;s products and history. com, is probably the most educated metallurgist who writes on the subject of steel and its processing, cutting performance, geometry, and all kinds of other subjects we knife folks study. 7) I am not considering defunct or extremely rare steels like BG42, 440XH (non-PM XHP. Feb 25, 2019 Data from 9 So if the steel had 1Mn the Mn multiplying factor would be about 1. The SM-100 brand of Nitinol, like its forerunner, is extremely tough. Award winning photography by Visti Kjar transports the reader behind the scenes, into the rarely seen, dimly lit, sweaty, bustling, historic workshops of some of the worlds best. The reduced carbon means that Z-Tuff has even less carbide than CPM-3V and the powder metallurgy technology keeps the carbides small. This steel became what we know as D2, which is popular as a die steel. The chromium addition provides it some more hardenability vs a steel like 1095 but is not a true oil hardening steel. Stone, and Ken McCurdy for becoming Knife Steel Nerds Patreon supporters. I give K390 the edge because edge stability is a little better. The video on making a knife out of cardboard has over 20 million views which means that these videos. H1 is known for being a very high corrosion resistance steel used primarily in Spyderco&x27;s Salt line of knives. A recent Spyderco Byte has announced a replacement for H1 steel - H2. The steel was first used in knives by D. This may slightly reduce the corrosion resistance of H2 but it is probably made up for with the increased molybdenum. Update 162020 I have since written more articles about CATRA looking at the effect of steel type Part 1 and Part 2 Cutlery and Allied Trades Research Association (CATRA) makes an edge retention tester that measures slicing of cardstock. updates I added some toughness numbers that I had previously been unable to track down comparing 440C and 154CM to the 154CM article. 9 Rc, and 634mm at 65. Probably it is most likely that the chromium content is 13. The blades were sharpened with edge angles of 25 degrees, 17 degrees, and 10 degrees. The two steels have relatively similar "as-quenched" hardness or with a low temper of 300F, though S125V seems to have somewhat better tempering resistance (hardness is higher with a 400F temper). Cool to room temperature between tempers. DLT Trading New Arrivals - httpsdlt. Preheat Heat to 1,560 and equalize. 15V has about 23-25 vanadium carbide as opposed to the 16-17 in 10V. 21 Comments. Thanks to Ian Rogers for becoming a Knife Steel Nerds Patreon supporter. The Mo-free AEB-L had relatively poor corrosion resistance when compared with these other steels. A recommended heat treatment would be 1850-1900F for 30 minutes, plate quench, cryo, and temper 300-500F. Bob Loveless popularized it amongst custom knifemakers when he began using it in his knives in 1972. They use conventional D2 tool steel and process the edge so that it has hardness of around 65-69 Rc and a spine at 38-42 Rc. Thanks to Warren Krywko, Joseph Cannell, and Timothy Thomas for becoming Knife Steel Nerds Patreon supporters Your contributions will help fund more research on knife steels. Read Part 1 before this article as it covers the ideas behind the Edge Stability theory and how things like hardness of steel, carbide volume, and carbide size are thought to affect knife edges. Powder Metallurgy Knife Steels. S45VN is a new powder metallurgy stainless steel being produced by Crucible that has just been announced. A popular one is S7, an air hardening steel that can reach relatively high hardness. Log in. Peak hardness was achieved at 1950F, and remained flat to 2000F. Book Description. The high-end steels category includes the CPM and Crucible series of steels, which offer excellent cutting performance, edge retention, and corrosion resistance. I previously wrote an article on what CATRA testing is and what it is revealing from a set of tests on 154CM Maximizing Edge Retention. com, is probably the most educated metallurgist who writes on the subject of steel and its processing, cutting performance, geometry, and all kinds of other subjects we knife folks study. Update 61918 I have added new toughness numbers from a 1962 publication comparing 440C and 154CM. 154CM and N690 can also be hardened a bit more than BD1N. At the time of writing there are more than 900 responses to the quiz (update 1000), which I think is a success. Large pieces of steel may need a longer soak time. Thanks to the new Knife Steel Nerds Patreon supporters Hunter Chen, Claas, Curtis Fowler, Saptak Dutta, Tracker Dan, Paul Pedrazzi, 150LAT10N, James Kane, Vincent Franchino, and Jack Bashear. update I have added a set of supporting micrographs to the introduction to Austenitizing steel. 10V has about 16-18 vanadium carbide in its heat treated state. A finer microstructure in the annealed steel leads to finer carbides in the final heat treated steel for better toughness. View all results. During rapid quenching Continue reading Nitrogen-Alloyed Knife Steels. The two steels have relatively similar as-quenched hardness or with a low temper of 300&176;F, though S125V seems to have somewhat better tempering resistance (hardness is higher with a 400&176;F temper). Cru Forge V was developed by Crucible for those who forge their steel for knives 1. Oct 17, 2022 K190 is not a stainless steel. 6 Cr at 1950&176;F has somewhat higher carbide volume and lower carbon in solution, which would likely mean a reduction in hardness by 2-3 Rc A higher chromium stainless version of D2 is essentially Carpenters XHP steel which has 1. Thanks to Sal Glesser, Brian Huegel, Mark Bellou, Timothy A. The Mo-free AEB-L had relatively poor corrosion resistance when compared with these other steels. The steel was first used in knives by D. Stone, and Ken McCurdy for becoming Knife Steel Nerds Patreon supporters CATRA Testing. In 1876 a large Sheffield steel company, Sanderson Brothers. We looked at different prior microstructures with toughness studies of. Having a very similar heat treat to 5160, it shouldn&x27;t be too much trouble to substitute this steel for. Verhoeven is well known for his contributions to research on knife steels and damascus, along with frequent collaborator Al Pendray. That sets up the steel to be drilled, ground, and given the final austenitize, quench, and temper. This was the condition that I used when heating to nonmagnetic in the forge and quenching in Parks 50. The addition of niobium also helps with corrosion resistance. 15K Followers, 531 Following, 570 Posts - See Instagram photos and videos from Larrin Thomas (knifesteelnerds). RWL steel is perfect for bushcraft knives, folders, and fixed blades alike, it is easy to work with and sharpen. My book Knife Engineering is available for Christmas and Hanukkah presents. Grain refine by heating to 1450F790C for 10 minutes, air cool. . ds1 weapons tier list