Both are Mo-W high speed steels (with a slightly different proportion of each), and the same Cr content. 25 Cr for improved corrosion resistance. Thanks to Richard Patterson, Patrick Guignot, Aaron Lee, and David Richardson for becoming Knife Steel Nerds Patreon supporters Hardenability. In July 2018 a new book was released on the research of wootz Damascus steel by Dr. If necessary (depending on what you order), we will send an email asking if we can cut the steel in half in order to ship all in one box. RWL steel is perfect for bushcraft knives, folders, and fixed blades alike, it is easy to work with and sharpen. Runyon was attempting to get nickel powder to stick to cable to produce a nickel-infused cable Damascus. Another steel in the Continue reading Silicon Additions for Improving. 14C28N was designed by Sandvik to have improved corrosion resistance vs their 13C26 which is identical to AEB-L. A Quick Guide To Knife Steel for Non-Nerds. 2 thoughts on "Steel and Knife Properties" Robert Cella says May 28, 2018 at 1025 am Those photos and drawings will help people understand Orientation - I was curious about what Crucible does with that. The steel was first used in knives by D. I used 300Fhr in the experiments in this article. Thanks to Kevin Colwell, Prentice Goodwin, HallMade Knives, and Saint Apocryphal for becoming Knife Steel Nerds Patreon supporters And Fixall for increasing his contribution amount. Patreon money is only used for knife steel research. Toughness testing - Cru-Wear, Z-Wear, Upper vs Lower temper, Cryo vs No Cryo. Buy Bento Buy BladeHQ. Thanks to Johnny Ngo and ALtheSciencePal for becoming Knife Steel Nerds Patreon supporters O1 Steel History. Thanks these are the two references I researched. Intro to Cryo and Wear Resistance. The history of Vanadis 8 goes back a lot further than just the steel itself, really we have to know the history of 10V to know all of the background that is relevant. The microstructure confirms somewhat reduced carbide content relative to S35VN, S30V, and S45VN. 2 thoughts on "Steel and Knife Properties" Robert Cella says May 28, 2018 at 1025 am Those photos and drawings will help people understand Orientation - I was curious about what Crucible does with that. And the yet finer structure of CPM-D2 gives it better toughness than either PSF27 or D2. More carbide means higher wear resistance and edge retention but reduced toughness. A popular quote from Roman is that "geometry cuts. read more. Thanks to Michael Poor and Connor Kaspar for becoming Knife Steel Nerds Patreon supporters M398 Steel. This steel is a definite try for every knife lover out there who is passionate about knives. A Quick Guide To Knife Steel for Non-Nerds. The 2100&176;F heat treatment led to 64. I have also shown 10V and 4V below for comparison. Stone, and Ken McCurdy for becoming Knife Steel Nerds Patreon supporters. And Daido has DRM1, DRM2, and DRM3. In the world of tool steels and stainless knife steels the effect of other elements is very important. History of S45VN. Many of these same companies also hot roll and anneal the steel and perhaps cold roll it. A popular Youtube channel called kiwami japan includes several videos of making knives out of unusual materials such as jello, pasta, chocolate, etc. Steel type 154CM ATS-34. Typically, carbon steels are easier to sharpen than stainless. The Damasteel did very well, comparable to mid-tier wear resistance steels such as CPM-3V or CPM-154. The toughness change with hardness was quite flat despite the 5 Rc difference in hardness. Thanks to Lev Serebryakov for becoming a Knife Steel Nerds Patreon supporter. 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 the 58-61 Rc range. The temperature at which this drop in toughness occurs is called the Ductile to Brittle Transition Temperature (DBTT) which is about -75&176;C for the 0. Reply Roger Breault says October 9, 2023 at 825 pm Have a Bench Made Tagged Out Magna cut. The concept of matrix high speed steels seems to have mostly been ignored in the United States. Forgeable Blade Steel. I wanted a name that made it clear that it is a knife steel and also calls back to the history of steel. At one time I did some testing, and found it to be much tougher if tempered at around 1000 degrees. The Niolox microstructure looks relatively similar to 19C27, which is an in-between stainless that has lower carbide volume than steels like 154CM or 440C but significantly more than AEB-L, for a combination of moderate toughness and wear resistance. Coarse and polished edge results both. This reduces costs of production making it better for budget knives. Because of the carbon and chromium blend, the steel offers superior hardness. And above 66 Rc the toughness of 52100 drops down sharply with increasing hardness while ApexUltra maintains toughness all the way. Anneal at 1400F for 30 minutes, cool at 600Fhr to 1200F, air cool. Because of the carbon and chromium blend, the steel offers superior hardness. Cut into squares and rolled alternating direction to minimize directional properties. November 12, 2018 November 13, 2018 Larrin. 5 x 0. A general ranking of different quenchants is found below Parks 50 and AAA are quite commonly known oils among knifemakers. So the nitrogen addition gives higher hardness without negatively affecting other properties. Crucible Tech Desk available at -. Without reservation, I can say this is the biggest study on the performance of pattern-welded Damascus that has ever been performed. 8 vanadium carbide by Uddeholm, and 17. Therefore the balance leads us to an optimum of 1500-1525F. 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. K390 Corrosion Resistance Decent good corrosion resistance. Kelley for becoming Knife Steel Nerds Patreon supporters We only need a few more for 150 supporters Super Hard High Speed Steels. Thanks to Gary Cornell and Devin Thomas for becoming Knife Steel Nerds supporters on Patreon. A simple blade swap would be nice but, they don&x27;t have any replacement options so started to look at making a set my self from Vg10. S45VN is a new powder metallurgy stainless steel being produced by Crucible that has just been. Here is a partial list of some niobium-alloyed steels, and I will describe the reasons why the niobium addition was made Niobium is used in a relatively small number of knife steels, but its addition is significant in terms of effects on the final. What is difficult about high hardness heat treating of MagnaCut read more. The man behind Knife Steel Nerds just released his second book, The Story of Knife Steel Innovators behind Modern Damascus and Super Steels. A book for knife enthusiasts, knifemakers, and bladesmiths. Austenitizing, Cryo, Damascus, Powder Metallurgy, Steel and Knife Properties. If you have ever wanted to learn more about the inner workings of the knife industry, this book is for you. More carbide means higher wear resistance and edge retention but reduced toughness. Thanks to Jake Smith, Erik Mittag-Leffler, Ashley Wagner, David W. A popular Youtube channel called kiwami japan includes several videos of making knives out of unusual materials such as jello, pasta, chocolate, etc. 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. 2 vanadium carbide in CPM-10V. 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. I used 300Fhr in the experiments in this article. This steel is a definite try for every knife lover out there who is passionate about knives. We have many different woods in stock including Spalted and Burled pieces, Cocobolo, Gabon Ebony, Bolivian Rosewood, Black Palm, and carbon dated. Follow the heat treat recipe and the steel will harden. Z-Wear is the same as CPM CruWear, PSF27 is a "sprayform" D2, 40CP is a powder metallurgy 440C. I previously wrote about the history and properties of 52100 in this article. At that point the test is stopped and the time taken. And Nachi-Fujokoshi introduced a small series of matrix high. 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. In the early 1900s, high carbon-high chromium steels were developed, and during World War I in England they were used as an alternative to high speed steels with high tungsten content. Thanks to Ken Kneringer and Nevin Ng for becoming Knife Steel Nerds Patreon supporters Bad Edges on Factory Knives It is commonly reported that a new knife needs to be sharpened a few times before its performance can be evaluated, reportedly because the grinders that put the final edge on the knife will overheat the edge. Simple steels like 10801084 have the narrowest range for optimal temperature-time combinations in terms of hardness and toughness. 154CM and N690 can also be hardened a bit more than BD1N. Crucible, or Wootz, steel was first produced in India and Central Asia and produced into swords anciently from at least the 3rd century AD. Thanks to Russ Andrews for sending me the article. Optimal steels include AEB-L and 52100. How fast one must quench steel is controlled by its hardenability. I have a previous article about the design of H1 and how it "works" which you can read here. Knife Steel Nerds is run by Larrin Thomas, a steel metallurgist known for his website KnifeSteelNerds. But as both Blade Mag and Knife Steel Nerds have pointed out, most of the chromium gets tied up in the carbon to make the structure harder so there&x27;s only about 6 chromium actually making D2 rust resistant, which is still higher than some tool steels. One of the Marine Approved top recommendations for a knife encompassing H1 steel is the Spyderco Ladybug 3. When comparing K390 to Vanadis 8 and CPM-10V it is important to note the dotted. Part 1 of the Cryogenic Processing series covered the transformation of retained austenite to martensite and the increase in hardness that occurs. The Mo-free AEB-L had relatively poor corrosion resistance when compared with these other steels. That sets up the steel to be drilled, ground, and given the final austenitize, quench, and temper. CATRA, Sharpness, and Cutting Ability. 5 chromium carbide. CPM series (CPM-M4, CPM-3V, CPM-S90V, CPM-S110V, CPM-20CV, CPM M2, CPM 154, CPM 20CV) Known for their uniform composition, these steels exhibit. He also offers a really interesting look at the history and reasoning behind the creation of certain steels. Austenitic stainless steels are about as old as stainless steel itself, being developed by German metallurgists in the approximate time period of 1909-1912. 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. At one time I did some testing, and found it to be much tougher if tempered at around 1000 degrees. The steel was designed and produced in collaboration with Buderus Steel as a version of Uddeholm AEB-L modified with nitrogen. A popular quote from Roman is that geometry cuts. Knife steels typically have between 14 and 20 chromium, but not all of that chromium helps with corrosion. The company Sandrin produces knives out of cemented tungsten carbide. Knife Steel Basics Selection of Knife Steels The utility of a knife depends on optimizing all the factors affecting its performance. The preparing of those samples was very time consuming. We have now reached our second goal of funding a toughness study I will start putting together the plan and discussing it with the patrons. M390 and S30V Edge Retention. This should result in at least 60 Rc along with good toughness. As the most common example, D2 steel with 12 chromium is not stainless because the high carbon content means that many chromium carbides are formed. Corrosion Resistance 15 of Chromium is great. I previously wrote about the history and properties of 52100 in this article. Larrin completes original research to find the best heat. by Dr. Each particle of the powder is like its own tiny ingot. What is Damascus Steel There are two major steel types that are called Damascus 1. You get enough. Neto, Tristan, Gareth Chen, Alvise Miotti Bettanini, Henjie Taguinod, ben horridge, Steven, and Ian Miller for becoming Knife Steel Nerds Patreon supporters This study alone was about 12k. Wear resistance is the most controversial aspect of. Failure modes are identified and the designs are modified to prevent those failures. I wanted a name that made it clear that it is a knife steel and also calls back to the history of steel. Thanks to the new Knife Steel Nerds Patreon supporters Jason Webb, Miguel Angel Duarte, Jason Ward, Zsolt Papp, Peter Nystrom, Travis Johnson, John Burridge, Chris Warkocki, Michael Steele, Barry Gordon, John Hannaford, and Gregory Horn. In 2015 3 and 2022 4 Juha published articles on the toughness of a range of low alloy steels. It&x27;s considered by some as a better option to the AUS6 and AUS8 steel grades which are more commonly used to make steel knives. Takefu Metallurgists 1950s. O1 quenched from 1475F. 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. Damasteel Heat Treatment and Properties. With stainless steels like Vanax, however, chromium can be a significant factor. The main difference between CPM MagnaCut steel and other stainless steels is the amount of chromium. - Access to articles early. I have also shown 10V and 4V below for comparison. VG-1 is a less expensive Japanese stainless steel somewhat similar to 420HC but which is mostly used by Cold Steel on knives that require a tough blade steel composition. KnifeGuy, jethro fluegel, Philip Ward, and Matt Peterson for becoming Knife Steel Nerds Patreon supporters ZDP-189 and Cowry-X. Larrin Thomas also has a blog called Knife Steel Nerds that is worth checking out. 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 the 58-61 Rc range. Anneal at 1400F for 30 minutes, cool at 600Fhr to 1200F, air cool. 7) I am not considering defunct or extremely rare steels like BG42, 440XH (non-PM XHP. Thanks to the new Knife Steel Nerds Patreon supporters Dusan Praznik, Donald Adkins, Marcus Collins, and Trae Santiago. I have not been able to find much background information on the development of these steels. Vanadis 8 replaced Vanadis 10 because it was quite a bit tougher -- even tougher than 10V. Without reservation, I can say this is the biggest study on the performance of pattern-welded Damascus that has ever been performed. What is Damascus Steel There are two major steel types that are called Damascus 1. Larrin loves steel metallurgy He writes about steel for knifemakers, collectors, enthusiasts, and all-around science loving people. In conclusion, harder carbides contribute more strongly to edge retention and more carbide provides more edge retention. In the world of tool steels and stainless knife steels the effect of other elements is very important. Corrosion Resistance 15 of Chromium is great. The microstructure confirms somewhat reduced carbide content relative to S35VN, S30V, and S45VN. Sep 3, 2018 Nothing about 420HC makes it less tough or corrosion resistant than 440C. Thanks to all my current Knife Steel Nerds Patreon supporters. 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. Thanks to Bill Smutz, Alex Topfer, Florian Bachler, Brunhard, Art, Rod H, Sach, Jinny Koh, Jon Duda, Cory Henderson, and UPKnife for becoming Knife Steeel Nerds Patreon supporters And Michael Fitzgerald, Tim Marais, and Head. Cooling rate below 1100F is not critical. 5 Si would be about 1. Summary and Conclusions. I already have a video and article about the history and properties of K390, which you can see here. Properties of SM-100. Instead it is a measure of how fast you have to quench to achieve max. Nitro-V is a stainless steel sold by New Jersey Steel Baron which was first released in 2017 1. Continue reading Austenitizing Part 2. Corrosion Resistance The LC200N Offers an exception corrosion resistance, its perfect for humid or wet usages, this steel would suit perfectly kitchen knives, fishing knives, and hunting knives. Normalize from 1550F for at least 10 minutes. Charles dP. 5 cobalt addition. With each I overheated the steel at 2100F1150C for an hour to simulate forging, normalized at 1550-1700F for 10 minutes and air cooled. 7 thoughts on "Super Steels" Ben says October 1, 2020 at 528 am Hello i kinda stumbled across your site looking for. He also offers a really interesting look at the history and reasoning behind the creation of certain steels. If you can edc a fixed blade, that would be the way to go. Preheating and When to Start the Austenitizing Timer. to3OQRYt0 (affiliate link) We were recently up at Buck Knives. I previously wrote about the history and properties of 52100 in this article. JeffG Bushmaster. Therefore, the steels with the highest combination of toughness and wear resistance will be those that primarily have tungsten carbide. Gerber gerbergear. 5 chromium, and small amounts of Mn and Si. Therefore, annealing procedures leading to a finer microstructure are likely to lead to the best combination of properties. They are inherently stronger as there is no pivot. The flat stock was 4. This week we sit down with Larrin Thomas of Knife Steel Nerds and talk about his training as a Metallurgist and his intense passion for all things steel Lar. This resulted in 61. S110V is essentially a modified version of S90V or S125V designed for improved corrosion resistance when compared with those steels. S110V is essentially a modified version of S90V or S125V designed for improved corrosion resistance when compared with those steels. We have now reached our second goal of funding a toughness study I will start putting together the plan and discussing it with the patrons. The patent for the steel was first filed in 2006 by. Alongside edge geometry and design, blade steel is a critical element that determines how a knife performs. Therefore among available knife steels we would expect a steel like 15V or Rex 121 to have the best slicing edge retention because of the high MC carbide volume. Cangshan Thomas Keller 17 Piece Block Set. The steel has excellent corrosion resistance and toughness as well. Steel type 154CM ATS-34. I already have a video and article about the history and properties of K390, which you can see here. The two are combined and heated to near 600F. 6 Cr at 1950F 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. Peak hardness was achieved at 1950&176;F, and remained flat to 2000&176;F. Thanks to Guns N Loaded for becoming a Knife Steel Nerds Patreon supporter Austenitic Stainless Steels. However, a plate quench or rapid gas quench would be recommended. Cangshan Thomas Keller 17 Piece Block Set. At its most basic, H1 is an austenitic stainless steel. Often "ease in heat. Knife Steel Nerds is run by Larrin Thomas, a steel metallurgist known for his website KnifeSteelNerds. 52100 quenched from 1500F. Grain refine by heating to 1450&176;F790&176;C for 10 minutes, air cool. Stainless steels contain added chromium to increase their corrosion resistance. In Cryogenic Processing Part 1 I covered the effects of cryo on retained austenite and hardness. Therefore the balance leads us to an optimum of 1500-1525F. cryo (hrs) temper (F) 8670. Hardening is a way of making the knife steel harder. Both VG10 and SG2 were developed by Takefu Special Steel, a company started in 1954 and known for their laminated steel produced for knives 1. Larrin completes original research to find the best heat. He is the mind and writer behind Knife Steel Nerds, the go-to source for all knowledge about knife steel. K390 Steel and Heat Treating Background. One of the Marine Approved top recommendations for a knife encompassing H1 steel is the Spyderco Ladybug 3. 19C27 also has many small carbides with some larger primary carbides mixed in. CPM CruWear high carbon steel is super steel due to its unique alloy composition that gives it a higher attainable hardness of 65 HRC, excellent toughness, and great edge retention. Thanks to Thomas Busch for becoming a Knife Steel Nerds Patreon supporter Misc. Later Mushet was experimenting with various additions of elements and discovered that one of his. S35VN is a steel developed and produced by Crucible Industries, released in 2009. For select styles, we use Nitro V or CPM 154, although we primarily use AEB-L Stainless Steel. Heat Treating is the most important factor for high performance knives. Jun 2, 2019. New Knife Steel Nerds article about best budget steel (this one is easy to read) Thread starter A Seedy Lot; Start date Jun 15, 2020; 1; 2; Next. 9Cr18MoV is a high-end stainless steel that&x27;s popular among blade manufacturers globally. Low Alloy Steels with Furnace. The company Sandrin produces knives out of cemented tungsten carbide. Wear resistance is the most controversial aspect of cryogenic processing of steel. 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 anteck7 and Aaron Lee for becoming Knife Steel Nerds Patreon supporters. 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. Thanks to Gary Creely and Sans Jeux for becoming Knife Steel Nerds Patreon supporters. Postby Doc Dan Sat Jun 26, 2021 459 am. Who uses it Benchmade, Emerson Knives, Tuna Valley. Sorry if this comes off as hostile. RWL 34 steel combines all the characteristics that make good knife steel. I also added a summary of a very interesting new journal article about the effect Continue reading Review Kevin Cashens Guide to 1080 & 1084. Edge Retention CATRA Tests of M390 Knives. Pete of the Cedric and Ada Youtube channel posted this past week a video summarizing his rope cut tests on 14 Spyderco Mule knives in different steels. 9Cr18MoV is a high-end stainless steel that&x27;s popular among blade manufacturers globally. No real world edge retention testers have found M4 to have better edge retention over Rex45. 4 beautiful colours for your choice. For optimum vacuum heat treatment response, a minimum 4 bar gas quench is recommended. Thank you to all the new Knife Steel Nerds Patreon supporters Your support allows me. I think Matt Gregory. As you can see this was a big year despite the many challenges that we experienced in 2020. Who uses it Benchmade, Emerson Knives, Tuna Valley. The incredible popularity and longevity of the steel means it warrants a mention. Thomas is a friend of ours here at Blade HQ, and with his help, weve worked to create this knife steel guide. Thanks to Lee Rothleutner and J Hamm for becoming Knife Steel Nerds Patreon supporters General Heat Treating Myths. Editor&x27;s Choice CoolHand 7. Its edge retention and wear resistance is similar to other low carbide steels like AEB-L and 14C28N. 5 or 14 for H2 with some acceptable bracketing around that, such as 13-15 chromium. 80CrV2 has 0. Diamondblade Knives is a sub-company of Knives of Alaska. What are the 4116 Stainless steel properties. RWL 34 steel is Martensitic stainless powder steel produced by Damasteel. Forging to shape provides a minor change to the orientation of the grain but there would still be reduced toughness in the direction where the tip can more easily break. Stainless steels contain added chromium to increase their corrosion resistance. They used a low temperature rolling process to refine the grain size prior to the final hardening treatment The grain refinement process meant that with sufficiently low hardening temperature they could achieve a very fine grain size in the final heat treated steel. Knowing what knives are made from, the specifics of each type of steel, and how each type of steel interacts with its environment, is a fundamental step in becoming a true knife expert. 01 carbon steel above. 1 Manganese Supports knife flexibility, toughness, and durability. The Ria is, without a doubt, a fantastic budget gentleman&x27;s folder. 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. I felt like the skies cleared when I discovered your site. This is a slight departure from Larrin Thomas highly technical debut book, Knife Engineering Steel, Heat Treating, and Geometry (which has become something of a bible for knife makers since it came out in 2020). LC200N has a max hardness of about 60 Rc, which is probably its biggest limitation. It offers all characteristics any knife makers would ask to make high. 22 1. Because they did not know the exact heat treatment used by Richtig, they used a range of austenitizing (760-900&176;C) and austempering temperatures (350-450&176;C). life stride, homes for rent salina ks
Marco achieved a very excellent improvement in toughness of 1. . Knifesteelnerds
6 Cr at 1950F 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. 52100 Steel. Austenitic stainless steels are about as old as stainless steel itself, being developed by German metallurgists in the approximate time period of 1909-1912. Thanks to Greg Hanson for becoming a Knife Steel Nerds Patreon supporter The writing of this article was made much easier due to the existence of The History of Stainless Steel by Harold Cobb 1. 2562 have a high carbon content, which primarily acts to increase its cementite fraction, which again, decreases toughness with little contribution to wear resistance. Thanks to the new Knife Steel Nerds Patreon supporters Dusan Praznik, Donald Adkins, Marcus Collins, and Trae Santiago. Nitro-V is a stainless steel sold by New Jersey Steel Baron which was first released in 2017 1. 52100 quenched from 1500F. The Mo-free AEB-L had relatively poor corrosion resistance when compared with these other steels. A Seedy Lot Supporter. Enter your email address to subscribe to this blog and receive notifications of new posts by email. The liquid steel is dripped through a nozzle and is atomized by liquid or gas sprays that near-instantly solidify the steel as powder. How to Thermal Cycle Knife Steel. However, somewhat surprisingly the oxygen content of the USA version was the. 5 chromium, and small amounts of Mn and Si. 7 Rc for the high temper and 66. Thanks to Bob Kramer, Jason Stone, Jeff Freeman, Austin Nader, Mark McKinley, and TheIronJoe for becoming Knife Steel Nerds Patreon supporters We now have over 50 patrons N11X and Damacore DC18N Last month I released an article about nitrogen-alloyed knife steels. Thanks to Roberto J. After I posted the article I was informed about a new Damasteel product that Continue reading New Steel Analysis. I added it to the CATRA Testing section of the article. Corrosion Resistance The O1 steel isn&x27;t great according to corrosion resistance, it has only 0. 3 Rc and 2150F resulted in 65. The longer the steel is held at the austenitizing temperature, the more the carbides will coarsen. The tests were performed on a range of steels. com Analytics and market share drilldown here. The properties of knife steels are greatly controlled by the volume fraction, size, and distribution of carbides. The steel is named after Robert W Loveless, a worlds famous knife maker recognized for his innovative approach to the knife-making industry. New YouTube video is a Q&A from Knife Steel Nerds Patreon supporters. CATRA, Sharpness, and Cutting Ability. These two parameters, while equal (according to him) doesn&x27;t mean that the two steels are tied. 5 chromium carbide. Apr 1, 2021. After 1100F the steel can be furnace cooled or air cooled it doesn&x27;t matter. In fact, the strongest steel that I am aware of was reported as 6350 MPa 2. My interest in custom knives up to that point had been pretty limited. KnifeGuy, jethro fluegel, Philip Ward, and Matt Peterson for becoming Knife Steel Nerds Patreon supporters ZDP-189 and Cowry-X. But if the steel with smaller carbide crystal size allows you to sharpen to a smaller angle, say 10 degrees (per side. 2 yr. Vasco Die. For example, I have micrographs below for both 10V (16 vanadium carbide) and CPM-154 (16 chromium carbide). read more. However, a plate quench or rapid gas quench would be recommended. Braun, Mr. These knives include kitchen knives, straight razors, and fine slicers. So to feed that passion, I write about knife steel related topics on my blog here, Knife Steel Nerds, where we can all nerd out on steel together. Alleima will publish its third quarter financial results on Tuesday October 24, 2023, at approximately 1130 am CEST. Oct 14, 2019 Comparisons Between Steels. Different smiths do it differently. 15N20 332 x 6". To discuss chipping we have to start with fracture mechanics of materials, and in this case steel. Thanks to Lev Serebryakov for becoming a Knife Steel Nerds Patreon supporter. The high-end steels category includes the CPM and Crucible series of steels, which offer excellent cutting performance, edge retention, and corrosion resistance. 2 vanadium carbide in CPM-10V. Each steel has an upper shelf toughness at higher temperatures and a lower shelf toughness at low temperatures. The steel was first used in knives by D. Thanks to Aaron T Grote, J. Cobalt in Steel There is a lot of misinformation out there Continue reading Why There is Cobalt in VG-10. The company DiamondBlade Knives produces knives with friction stir processed (FSP) edges 1. K390 is a powder metallurgy non-stainless steel with high wear resistance due to very high vanadium, 9. Jun 2, 2019. Very often seen on high-priced kitchen knives. 5 chromium, and small amounts of Mn and Si. Probably it is most likely that the chromium content is 13. Dec 2, 2019 Thanks to Roberto J. Larrin loves steel metallurgy He writes about steel for knifemakers, collectors, enthusiasts, and all-around science loving people. Intro to Cryo and Wear Resistance. Based on a poll of Knife Steel Nerds Patreon voting members, we have decided to purchase a small impact tester. A lot of things happened in 2018. Learn more about 26C3 at "Knife Steel Nerds. The company DiamondBlade Knives produces knives with friction stir processed (FSP) edges 1. S110V is essentially a modified version of S90V or S125V designed for improved corrosion resistance when compared with those steels. Braun, Mr. 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. com Last edited Sep 25, 2021. November 12, 2018 November 13, 2018 Larrin. May 9, 2023 Larrin. And Daido has DRM1, DRM2, and DRM3. A recommended heat treatment would be 1850-1900&176;F for 30 minutes, plate quench, cryo, and temper 300-500&176;F. by Dr. Many of these same companies also hot roll and anneal the steel and perhaps cold roll it. Aug 17, 2020 The 2100F heat treatment led to 64. 13 Comments. Japanese steel tends to stand out from the rest because of how particular Japanese chefs can be with their knives. December 12, 2023 4 min read. Therefore I recommend heat treating S35VN by austenitizing for 15 minutes at 2025F, plate quenching, a liquid nitrogen treatment for at least 30 minutes, and tempering between 300 and 400F twice for 2 hours. First of all, the Knife Steel Nerds website was started, with the first article being posted February 27, 2018. Takefu Metallurgists 1950s. Vancron toughness is shown with black squares below. Exciting stuff Invented by Larrin. I have also shown 10V and 4V below for comparison. Edge angle doesnt greatly affect edge retention. The only non-stainless steels with higher edge retention either have higher vanadium (CPM-15V) or. This steel became what we know as D2, which is popular as a die steel. Larrin Thomas, a metallurgist and author of the blog Knife Steel Nerds, and the book "Knife Engineering", which is a great resource for makers. Both VG10 and SG2 were developed by Takefu Special Steel, a company started in 1954 and known for their laminated steel produced for knives 1. The steel was donated by Chuck Bybee of Alpha Knife Supply. CTS BD1N is not the same steel as CTS-BD1 steel; CTS BD1N is nitrogen-based stainless steel which is denoted by. Tungsten was very expensive and only available to mine in certain countries and so during war it could be difficult to obtain. High Toughness Steels. Forging, normalizing, annealing data for 52100 from the Heat Treaters Guide app. A popular Youtube channel called kiwami japan includes several videos of making knives out of unusual materials such as jello, pasta, chocolate, etc. O1 Steel History. Neto, Tristan, Gareth Chen, Alvise Miotti Bettanini, Henjie Taguinod, ben horridge, Steven, and Ian Miller for becoming Knife Steel Nerds Patreon supporters This study alone was about 12k. Edge geometry is yet again an important property, thinner and more acute edges will cut longer than thicker edges. M2 has a hardness bordering on brittleness but will retain a perfect edge. Knife Steel Nerds T-Shirt. I have written about steel corrosion resistance in the past, like the article on adding chromium to D2 to make it a stainless which also talked about the. Next goal funding an edge retention study. 9 cm long blade. Drew B Meadows. Paperback - July 16, 2020. Reply Roger Breault says October 9, 2023 at 825 pm Have a Bench Made Tagged Out Magna cut. I wrote about the history of 154CM. The steel was first used in knives by D. For example, the high carbon content contributes to the steel&x27;s exceptional edge retention, while the vanadium and molybdenum contribute to its toughness and wear. Larrin Thomas does a fantastic job of breaking down complex topics in an incredibly easy to understand way. Disadvantages Can be relatively difficult to sharpen (compared to carbon steels and softer stainless steels). View all results. Prior to powder metallurgy technology it was known that adding higher vanadium would lead to greater wear resistance due to the very high hardness of vanadium carbide. Mar 22, 2023 Heat Treating 15N20, L6, or 8670 with a Furnace. ZDP-189 is a steel produced by Hitachi and Cowry-X is produced by Daido. Spyderco does a good job with its 8Cr13MoV knives, but there are so many companies out there that regularly pump out 8Cr13MoV knives with edges that are ground terribly, & therefore not giving the steel the chance to perform anywhere close to its potential. 15K Followers, 531 Following, 570 Posts - See Instagram photos and videos from Larrin Thomas (knifesteelnerds). The main difference is vanadium content, and a corresponding increase in carbon, otherwise they heat treat similarly which is an indication that the Cr-Mo-W content in solution is similar. And Daido has DRM1, DRM2, and DRM3. Spyderco zdp189 metal information as I&x27;m looking to swap to a custom set of replacement blades for my titanium scaled Byrd 8cr. CATRA 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 Continue reading Maximizing Edge Retention What CATRA. 3pcs set. If this holds true across all steel types (perhaps a big if) that. Microtech announced that they would begin using M390MK steel in an Instagram post on January 14, 2023 1. The upper shelf toughness goes down with. There&x27;s no bevel most of the time, but occasionally there&x27;s a small one near the edge. Thanks to the new Knife Steel Nerds Patreon supporters Dusan Praznik, Donald Adkins, Marcus Collins, and Trae Santiago. Thanks to Jason Volkert for becoming a Knife Steel Nerds Patreon supporter Introduction. The 2100F heat treatment led to 64. What is Damascus Steel There are two major steel types that are called Damascus 1. One interesting note a tougher steel will resist edge chipping better, which allows you to make its edge angle narrower, which improves edge retention (25 per side will dull faster than 17 per side, but will be much more resistant to chipping). . tramadol not working for nerve pain