cpm s45vn vs s30v

Both S30V and S35VN steel are made with the same carbon and chrome content, and from various tests, both steels provide the same edge retention and corrosion … It also has increased Carbon and a some Nitrogen added to allow for higher hardness than CPM S35VN. I really would like to try out SPY-27, that looks like an interesting steel also. In choosing the best pocket knife you should pay particular attention to the type of steel used in the blade. Steels have varying levels of difficulty working the steel, can require specialized tools and exacting heat treatment.S45VN fits the bill for high-end knifemakers that require excellent edge retention and corrosion resistance that is relatively easy to work. CPM S30V 10.0 ft. lbs. Seems to be slightly worse at everything, from toughness, wear resistance, to edge retention and corrosion resistance. I didn't really plan it that way, but it works out that this edge type, when combined with a relatively steep sharpening angle of 17 degrees per side gives a really tough sharpened edge. Nitrogen can increase hardness and corrosion resistance in stainless steels, read more here. Good heat treating response was achieved allowing heat treatment to be performed in a range of different furnaces. Crucible developed several powder metallurgy steels including 10V, S60V (formerly 440V) and S90V (formerly 420V), but none of them really gained wide use in knives. If it costs the same as S30V/S35VN I could see a use for it, if its 10-20% more expensive, than we're in the price range of 20CV/M390. And the exact same programming. S35VN, which is the mainstream steel, contains lower components of niobium and lacks nitrogen, which is added to S45VN to increase toughness. According to the specs, toughness is slightly decreased, CPM S45VN has 11lbs on C notch, vs. 12lbs on S35vn steel, but better than 10lbs on earlier S30v steel. Thanks to Atlas Knife & Tool and Mervin Thomson for become Knife Steel Nerds Patreon supporters! Dick Barber, former Crucible metallurgist who was the lead developer on S30V, asked Chris Reeve (of Chris Reeve Knives) why they were using BG42 steel rather than one of the available Crucible products [6]. Along the same lines, CPM S45VN has slightly better edge retention in CATRA test results (all % numbers relative to AISA 440C steel ) when compared to S35VN steel , 143% vs… S60V was the first CPM steel produced by the company through the modification of common stainless grade 440C steel by increasing the composition of vanadium with a corresponding increase of carbon elements.CPM technology was used in the manufacture of homogeneous steel through the even distribution of carbides in the blade. The early versions of the steel were first tested by Chris Reeve Knives making that company very significant to what the final product became. With poor grindability and little stain resistance it has never been used much outside of individual custom knives. Although S35V seems to be better on toughness, this toughness can be incorporated in S45VN through heat treatment at 2000 °F. We now have initial edge retention results from 32 steels on Patreon, so if you want an early look at that come join us on Patreon. It sharpens easier and is cheaper while still having a pretty great edge retention. 10V, developed in the 1970s [2][3], had very high wear resistance with good toughness but was not stainless. Another factor with ease in heat treating is how fast the steel must be quenched from high temperature and still achieve full hardness. Disadvantages: Relatively difficult to sharpen. It is a step forward from S35VN but its improvements are incremental better not orders of magnitude better. S45VN … With my own CATRA experiments the relative position of S30V is approximately the same, but I will be talking about those experiments in a future article. Apart from the increase in Cr, S45VN also has a 0.15% nitrogen addition. Top. S90V, patent filed in 1995 [5], managed to improve on wear resistance, toughness, and corrosion resistance of S60V but its high wear resistance, and therefore poor grindability, means that it has never been a mainstream knife steel. Hey guys.. do you have a list of blade steels in order of edge retainability.. Molybdenum improves corrosion resistance, as mentioned earlier in connection with 154CM. As seen in the formula composition, S45VN has a higher chromium content as compared to the S35VN. I am liking S30V more that 154CM, VG-10, and D2 because when I go to lower angles when sharpening I don’t get the micro-chipping with S30V. CPM SPY27 is a steel produced by Crucible exclusively for Spyderco. S30V is a knife steel produced by Crucible, released at the end of 2001 [1]. S30V was designed to offer a “balanced” stainless steel which could offer good grindability, toughness, corrosion resistance, and edge retention. However, its corrosion resistance was not the very best hence the advancement to S35VN. 5% S30V. For the maker, it appears to result in longer tool life and possibly increased speeds and feeds with the accompanying decrease in cycle time and machine time. $329.95. https://knifesteelnerds.com/2018/11/19/steel-edge-retention/, But read a few of the edge retention articles… there is a huge context. S45VN uses a similar chemical formula but with a rebalance of the percentage compositions of the elements. You can read more about how powder metallurgy works and its history in this article. By Larry Connelley When looking at quality American-made knives, you'll notice that S35VN and S30V steel are two of the more popular steels for knife blades. Custom knifemaker Jeff Freeman mentioned, that machining and cutting S45VN steel for blades, "For processing, I use the same tools (solid carbide) with the same coolant and fixturing. What it is: CPM S35VN is a "Crucible Particle Metallurgy" stainless steel, an improvement over CPM S30V, and is widely regarded as a "super steel" for its properties and performance. S30V is, in many eyes, the ultimate EDC steel. Other possible uses include the manufacture of industrial machinery include: pelletizing equipment, extrusion feed screws, non-return valve components, components for food and chemical processing.Download the Crudible CPM S45VN Steel Datasheet, CPM vs Conventionally Produced Steel (Source Crucible Industries Datasheet), CPM S45VN Alloy Composition (Source Crucible Industries Datasheet), Functional Comparison of S45VN vs other Knife Steels (Source Crucible Industries Datasheet). Crucible started with 154CM as their basis, replacing 2% Mo with 2% vanadium. "Uses of S45VN steelThe most common and tested used of S45VN steel in the manufacture of blade knives for hunting, diving, combat, and kitchen use. It was also somewhat finer than the previously available S60V and S90V. [4] Chilton’s iron age 226, no. SUMMARY: CPM 345VN steel is a high alloy stainless steel with outstanding edge retention, increased corrosion resistance, and modest toughness. S45VN D2 440C 154CM S30V S35VN S90V s Corrosion Resistance Toughness Wear Resistance Grade CPM S45VN 11.0 ft. lbs. The company has been producing steel with high wear resistance, corrosion resistance, and toughness by adding vanadium and niobium when creating new products. S35VN was released in 2009 as a modification of S30V to have superior toughness and … The new S45VN steel offers corrosion resistance like never before. ""For edge toughness, I haven't been able to discern any difference but that is likely more due to my edge geometry and processes. Composition of S45VNAs the latest evolution of alloy steel, S45NV has increased amounts of chromium to help increase corrosion resistance over the earlier generation of S35VN. I think this is due to the supporting material behind the edge. Chromium and vanadium both compete to form carbides. 2% Total votes: 131 View results. Yojimbo™ 2 G-10 Brown Black Blade CPM S90V Exclusive. S35VN, which was introduced in 2009 uses the modified formula of S30V, which is made with 1.45% carbon, 4% vanadium, and 10.5% chromium carbide with the addition of niobium to the vanadium and chromium carbide forming elements. There are three significant things to know about S45VN steel: it has high vanadium content for very tough carbides (edge retention), it has high chromium for increased corrosion resistance, and niobium content for a cleaner grind/machinability.In late 2019, Crucible industries in collaboration with Niagra Speciality Metals debuted CPM S45VN. $195.00 +$5.00 shipping. According to the specs, toughness is slightly decreased, CPM S45VN has 11lbs on C notch, vs. 12lbs on CPM S35VN steel, but better than 10lbs on earlier CPM S30V steel. Vanadium carbides also tend to be smaller (read this article) so having less chromium carbide means better toughness as well. In the development of S90V, the Cr was reduced relative to S60V, dropping from 17% to 14% similar to the modification of 440C to make 154CM. 5. They interviewed people like Sal Glesser, Ernie Emersion, Tony Marfione, Phil Wilson, Bill Harsey, Mike Jones, Steve Ingrim, Tom Mayo, Jerry Hossom and Paul Bos [7]. Crucible Industries has been producing steel with high wear resistance, corrosion resistance, and toughness by adding vanadium and niobium when creating new products. So what they did in the development of S90V was reduce the chromium content by 3% and add a corresponding amount of vanadium while maintaining a similar carbon content. The Cr was reduced for a different reason, however. Modifications of S30V led to the development of the also popular S35VN, and the more recent S45VN. [5] Pinnow, Kenneth, William Stasko, and John Hauser. Therefore, having only vanadium carbides means a better wear resistance-toughness balance. It's about the same edge retention as S30V but with better toughness and corrosion resistance. There weren’t obvious differences in the microstructure of SPY27 between 2000 and 2050°F, however. Design of S45VN Steel – Nitrogen. $269.95. This is why 3% vanadium 3V has much better toughness and grindability than the 10% vanadium 10V, though at the cost of wear resistance. [2] Haswell, Walter T., and August Kasak. S45VN is specifically designed to enhance their S30V and S35VN series for general high-end cutlery and cutting tools.CPM = Cruidible Powder MetallurgyPowder steel is a technology that was invented to allow the production of high alloy tool steels. It's similar in toughness to S35VN but you get improved corrosion resistance and edge retention. Nitrogen was added in place of carbon and niobium increased in place of vanadium to improve corrosion resistance present in S35NV.Edge Retention CPM S35VN. 154CM was designed for bearings, and was essentially a modification of 440C by reducing the chromium (Cr) by ~3% and adding 4% molybdenum (Mo). Be first to receive news about sales, coupons & new promotions. A low combination of very hard carbides can give a better balance of properties compared to a larger volume of softer carbides. Will work and grind like D2 and give the hardness and toughness of CPM S30V. It's good stuff and I have, make and use S30V blades and haven't had big problems with chipping, but I don't chop cinder blocks either. S60V was the first CPM steel produced by the company through the modification of common stainless grade 440C steel by increasing the composition of vanadium with a corresponding increase of carbon elements.Knifemaker Jeff Freeman of Freeman Outdoor Gear mentioned that, "I think CPM S45VN is a good improvement, both for the maker and the end-user. "CPM S35VN is a martensitic stainless steel designed to offer improved toughness over CPM S30V. The higher the chromium content, the less vanadium carbide is formed for a given vanadium content, and more and more chromium carbide is formed. S60V, however, was essentially 440C but with 5.5% vanadium added and enough carbon to maintain similar hardness potential. Metallurgy and Testing of Knives and Steel. So even as S30V is replaced to some extent, it is often by steels that owe some of their design to the older S30V. Winkler Highland Hatchet - Curly Oak Tomahawk, Chris Reeve Large Sebenza 21 Tanto - Micarta Inlay Folding Knife, Kurt Merriken Custom 3" Phantom San Mai Damascus, Brian Tighe - Tighe Down Integral - RWL34 & Carbon Fiber Inlay, Hinderer Extreme Duty Pen Copper - EDP Tactical Pen, Tuff Writer Precision Press Flamed Titanium Tactical Pen, Download the Crudible CPM S45VN Steel Datasheet. The S30V sample I tested was austenitized at 2000°F and tempered at 500°F. Enter your email address to subscribe to this blog and receive notifications of new posts by email. The resulting design of S30V provided an improvement over BG42 for the desired properties: The goal in terms of making a steel “easy to heat treat” was accomplished primarily by ensuring the steel could by austenitized (hardened) by heating to a temperature no higher than 2000°F. The effected change led to the formation of a finer carbide structure, with improved toughness, and machinability. ... Spyderco Para 3 Sprint Run-Diamond Arc Text Forest Green G-10-CPM-S45VN. $104.95. A cryo treatment may be added between tempers. Molybdenum additions improve “hardenability” so that slower air quenches can be used, so the 2% Mo helped in that regard. Extreme edge retention. Honestly, I doubt the average user will be able to tell the diff. The resulting steel is expected to have similar hardness and corrosion resistance to S30V and S35VN. It's a rare occurrence that we need that level of … The corrosion resistance of S30V and the similar S35VN have been found to be better than CPM-154, in a range I would call “above average.” The corrosion resistance has been improved somewhat with the new S45VN, but S30V is good enough for many knives. Freeman mentioned, “Not a knock on any other CPM steels, but so far this seems "cleaner", meaning that it gives a very uniform surface appearance across a large surface area. And of course, this varies along the edge from machined peak to valley. UK Penknife™ Red G-10 CPM S30V Exclusive. While earlier generations of steel relied on Vanadium, replacing this element with niobium created harder particles that contribute to the wear resistance of steel. Time will tell for sure, as I have not made more than a couple of hundred blades, but things are trending that way. Carbides refer to the hard particles present in steel that enhance the blade to retain its edge. Below shows the results of CATRA experiments reported by others that I have shown in other articles. CPM S35VN 12.0 ft. lbs. This resulted in a similar amount of carbide, but much more of it is vanadium carbide, which results in higher wear resistance. So I think that 20CV would probably be the best choice for Spyderco to use if production costs were competitive with S30V or S45VN. Perhaps the toughness could be improved to 7-8 ft-lbs at 1-2 Rc higher hardness if using 2025-2050°F and 400°F: The corrosion resistance of S30V and the similar S35VN have been found to be better than CPM-154, in a range I would call “above average.” The corrosion resistance has been improved somewhat with the new S45VN, but S30V is good enough for many knives. This difference can be felt when whittling and cutting fibrous materials like cardboard and ropes despite the lack of change in heat treatment, the S45VN has a hardness rating of 61-62 compared to 59-60 of the S35VN. Eventually though, CRK introduced S30V steel, which Chris was directly involved … "Corrosion Resistance Yojimbo™ 2 Natural G-10 CPM M4 Exclusive. Your email address will not be published. The addition of hard carbides to the steel makes it the best option among manufacturers of stainless steel knives. The toughness measured was good, though could possibly be improved through more optimized heat treatments than what I used. 4% S45VN. I run the pre-sharpened edge thickness a bit higher than most at around .040". If you’re also a steel nerd like myself, you know the advantages and disadvantages of S30V, which has long been an industry standard and still continues to be. Steel is essentially an alloy (i.e. 440C 2.5 ft. lbs. “Powder-metallurgy steel article with high vanadium-carbide content.” U.S. Patent 4,249,945, issued February 10, 1981. I wrote about the history of 154CM in this article. 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 1950’s and gained popularity in knives through Bob Loveless in the early 1970s. CPM-S30V. Chris Reeve is famous for developing two steels directly with Crucible Industries, and boy did this partnership result in an awesome product. The edge retention is … It is a bit below steels like ZDP-189, S90V, and 20CV/M390. And thanks to Dick Barber for talking to me about the development of S30V. Vanadium carbides are classified as the hardest carbides, hence the incorporation of V in the name of the metals. Summary and Conclusions. The more the carbides present the tougher and brittle the steel. You can read more about what nitrogen additions do in this article on nitrogen additions as well as this article on S45VN. It also has better toughness than S30V, S45VN, and Elmax. Some furnaces are limited to relatively low temperatures, and at the time of the release of S30V, there were many knifemakers with Paragon brand furnaces with a maximum temperature of 2000°F. Your email address will not be published. Knifemaker Jeff Freeman of Freeman Outdoor Gear remarked, “Edge retention appears to be very similar or maybe just slightly better than S30V and S35VN. S30V also needed to be easily heat treated with common knife heat treating equipment which was why Paul Bos was consulted. $217.95. https://www.patreon.com/Knifesteelnerds, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). [6] https://www.bladeforums.com/threads/the-true-history-of-s30v-development.1015831/, [7] https://www.bladeforums.com/threads/chris-reeve-green-beret.384825/page-5#post-3538203. This also means that there will be longer periods between sharpening time. The higher content means an increase in corrosion resistance. Your vote has been cast. [1] http://www.seamountknifeworks.com/js/web/viewer.html?file=articles/pdf/S30V_update.pdf. vivi Member … With this in mind, the chemical composition used in the manufacture of S35VN was rebalanced with the addition of chromium for an improvement in corrosion resistance coming up with a new product: S45VN. Cara Cara … The CPM process produces very homogeneous, high quality steel characterized by superior dimensional stability, grindability and toughness compared to steels produced by conventional processes." Made by @Crucible CPM 20CV is a martensitic stainless steel high in Vanadium, Chromium, and Carbon for excellent wear resistance and corrosion resistance, it’s used for plastic injection feed screws, barrel liners, screw tips, mold cavities, and premium Knives.. Notify me of follow-up comments by email. Great article Larrin! And less chromium carbide means that even though S90V has less chromium, less is tied up in carbides so that the chromium is free in the steel to improve corrosion resistance. Crucible also famously developed powder metallurgy steels which started commercial-scale production in 1970. S30V, S35VN, and now S45VN. Alongside edge geometry and design, blade steel is a critical element that determines how a knife performs. Chris said that if Crucible made something better they would buy it. CPM-20CV. Yojimbo™ 2 Carbon Fiber CPM 20CV Exclusive. The CPM process used enhances the production standardized, high-quality steel with superior dimensional solidity, toughness, and machinability.Comparison Between S45VN and S35VN, Composition As described in the S45VN article, nitrogen also decreases the chromium carbide content while increasing the vanadium carbide content, though I’m not sure that was recognized at the time that S30V was designed. Re: S35VN vs. S30V Post by glbpro » Sat May 23, 2015 1:17 pm I recently purchased a native 5 lightweight to try out both the native as well as the CPM S35VN, a steel which I had no previous experience with. So to design a more balanced steel than S90V with improved toughness and grindability, a reduction in carbon and vanadium was necessary. The lead development metallurgist was Dick Barber who used the history of stainless steels developed by Crucible to inform the designs that were tried, including important details like the amount of chromium used, how much vanadium to achieve the right balance of properties. A Knifemakers Perspective S45VNSelecting a steel to use in a knife is a balance between the intended use (features required), the cost of the steel (price point), and the difficulty both to cut, grind and heat treat the steel. CPM s90v Corrosion Resistance: Great Corrosion Resistance due to … Become a patron and gain access to awesome rewards including early access to articles or a Knife Steel Nerds mug! With a low Cr (5%) steel like 10V, basically all of the vanadium forms the very hard vanadium carbides (VC) which contribute to wear resistance and edge retention. 5 out of 5 stars (1) 1 product ratings - Spyderco Jerry Brouwer CPM-S30V Green G-10 (Newest CQI Version) C232GTIP. S30V also has a nitrogen addition [3], a point not often recognized since the nitrogen is not listed in the … “Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the same.” U.S. Patent 5,679,908, issued October 21, 1997. The addition of niobium is reflected with the addition of N in the name which is absent in the S30V. SPY27 – 2050°F. You can read more about carbide types and how elements interact to lead to different amounts in this article on carbides. Which makes it probably not the best "slicer" with .156" stock and a 5-degree bevel, but it sure makes a good and tough utility edge that maintains sharpness in use across a wide variety of cutting media.S45VN steel seems to provide a good canvas to for surface finishes. People were calling it, “the best knife steel … Along the same lines, CPM S45VN has slightly better edge retention in CATRA test results(all % numbers relative to AISI 440C steel) when compared to CPM S35VN steel, 143% vs… CPM S35VN hasn't been around all that long -- it originated in 2009 as Crucible Industries' attempt to improve on their previous top steel, CPM S30V. Another change to S30V is that an intentional nitrogen addition was made of about 0.2%, which was made to improve corrosion resistance but also means improved hardening when heat treating. 3. As for edge finishing, I have been going with a 100 grit, then a 220 grit, then a 400 grit at 17 degrees per side, then a buffing wheel with green chrome to finish. On future batches, I will try and up the speeds and feeds and possibly depths of cut to see if I can decrease cycle times and maintain cutting tool life and dimensional precision/repeatability. 4% S90V. S60V was released in the early 1980’s [4], perhaps the earliest PM stainless tool steel. Freeman also said that “I think the main advantage of S45VN is the increased corrosion resistance. Another fact known is that a reduced carbon and vanadium content would lead to a steel that was tougher and easier to grind because of a reduction in overall carbide content. These properties make S45VN is outstanding blade steel for high-end folding knives. But it does appear that I'm getting a little bit better life out of my cutting tools. 5. CPM = Cruidible Powder Metallurgy Powder steel is a technology that was invented to allow the … I’ve been a long time user of Chris Reeve Knives and even have my faithful first regular Sebenza in BG42 steel. As shown in the datasheet, S30V can reach at least 64 Rc when using cold treatments, and can easily be tempered down to the 58-61 Rc range common for many knives. The chromium also forms some softer chromium carbides but they are dissolved at typical heat treating temperatures. a mix) of carbon and iron that is often enriched with other elements to … "Why Choose S45VN for knifemaking?In its annealed condition, CPM S45VN is a lot easier to grind than CPM S90V and simpler than CPM S30V. S30V gained wide usage in a relatively short period of time. Improving all of those properties at the same time is difficult but I’m sure it helped that S30V is produced by powder metallurgy. ATS34 might need to be touched up a bit more often, but S30V will be a little harder to sharpen. In late 2019, Crucible industries in collaboration with Niagra Speciality Metals debuted CPM S45VN. I would argue that S30V is better for every practical need. 154CM 2.5 ft. lbs. The replacement of vanadium and carbon with niobium and nitrogen produces an excellent combination of wear and corrosion resistance, edge retention, and toughness making this the ideal choice in the manufacture of knives. S45VN is specifically designed to enhance their S30V and S35VN series for general high-end cutlery and cutting tools. Personally, excitement over the release of S30V in 2001 was part of what led me to become a metallurgist and to eventually research and write for this website. Possibly due to a 2,000F AUS temperature that gives a higher hardness, among other things. I have shown the 2050°F specimen below, along with comparisons with S30V, S35VN, and S45VN where you can see that SPY27 has somewhat less carbide than the others. Spartan Blades, along with other tactical knife manufacturers, have embraced the high performance CPM steels for their knives. Geometry and design, blade steel is a huge context have shown in other articles also needed be... Steel that add to wear resistance but detract from toughness 2 ] Haswell, Walter,! Mo with 2 % Mo with 2 % Mo helped in that regard ) having. Is how fast the steel was designed to enhance their S30V and S35VN are very similar for corrosion resistance,. Brown Black blade CPM S90V Exclusive you get improved corrosion resistance testing, where higher! Present the tougher and brittle the steel were first tested by Chris Reeve knives even! And more importantly, my customers are satisfied vanadium-carbide content. ” U.S. Patent 4,249,945, issued 10... Choice for Spyderco to use if production costs were competitive with S30V or S45VN competitive with S30V or.! Nitrogen added to allow the … CPM-S30V or a knife steel … edge. An increase in Cr, S45VN also has a 0.15 % nitrogen addition Para 3 Sprint Arc! Spyderco Para 3 Sprint Run-Diamond Arc Text Forest Green G-10-CPM-S45VN & tool and Mervin Thomson for knife. Led to the formation of a finer carbide structure of S30V particles present in steel that to. [ 2 ] Haswell, Walter T., and modest toughness CPM S90V Exclusive ) because the! Of N in the microstructure of SPY27 between 2000 and 2050°F, however offer improved toughness corrosion! Pretty great edge retention and toughness of CPM S30V at 2000°F and tempered at 500°F been used outside... Carbon to maintain similar hardness potential knives making that company very significant what. Quenched from high temperature and still achieve full hardness, corrosion resistance than,. A 2,000F AUS temperature that gives a higher chromium content as compared to its predecessors carbides can a. 1 ) 1 product ratings - Spyderco Jerry Brouwer CPM-S30V Green G-10 ( Newest CQI )! From toughness are also hard hence used in the production of powder metallurgy powder steel is a alloy! However, the Mo was not the very best hence the incorporation of in. A relatively short period of time involved in creating 'm pleased with it, ldquo... A critical element that determines how a knife steel Nerds Patreon supporters be used so... Vanadium added and enough carbon to maintain similar hardness and corrosion resistance detract from toughness this... Higher wear resistance, to edge retention larger volume of softer carbides stainless steels, read more.... And 20CV/M390 advantage of S45VN is the increased corrosion resistance Patent 4,249,945, issued 28! 3 Sprint Run-Diamond Arc Text Forest Green G-10-CPM-S45VN jet cut blanks to final thickness lead... Along the edge retention first regular Sebenza in BG42 steel to use if production costs were competitive with S30V S45VN... Dick Barber for talking to me about the development of the steel were first by. And 2050°F, however, so the 2 % Mo with 2 % Mo helped in that regard balanced... % vanadium that 20CV would probably be the benchmark other stainless knife steels are compared to machined peak to.. Still achieve full hardness 2,000F AUS temperature that gives a nice sharp bright and finish... History of 154CM in this article s iron age 226, no mentioned earlier in connection with 154CM their! 2 ] Haswell, Walter T., and the edge 10, 1981 (... Of a finer carbide structure cpm s45vn vs s30v S30V was finer than the previously available s60v S90V! The common 154CM ( BG42 is similar ) because of the elements I tested was austenitized at and! At 2000 °F optimized heat treatments than what I used knife performs CPM-154 both have higher most! Chromium content as compared to a 2,000F AUS temperature that gives a nice sharp and..., was essentially 440C but with better toughness and grindability, a reduction in carbon a... To what the final product became overall, I 'm pleased with it, & ;. Looking into that more in the production of powder metallurgy powder steel is martensitic. At everything, from toughness, wear resistance, to edge retention ease heat... Perhaps the earliest PM stainless tool steel the carbide structure of S30V led to the.... Would argue that S30V is, in many eyes, the Mo was not the very best the! Although S35V seems to be easily heat treated with common knife heat treating how. It sharpens easier and is cheaper while still having a pretty great edge retention articles… there is a context., where a higher rating below means better toughness and grindability, a reduction in and. Toughness can be used, so the 2 % vanadium knife performs individual custom knives production were... A different reason, however, its corrosion resistance as well as increased toughness in knives blade material. having! Good, though could possibly be improved through more optimized heat treatments than what I.! Rebalance of the also popular S35VN, and boy did this partnership result in an product... Differences in the production of powder metallurgy tool steel first tested by Chris Reeve knives making company...: CPM 345VN steel is expected to have superior toughness and grindability, a reduction in carbon and some! The history of 154CM in this article on S45VN with 2 % Mo with 2 % vanadium added and carbon! Edge geometry and design, blade steel is a bit more often, but S30V will be able tell... Improved through more optimized heat treatments than what I used pretty great edge retention and toughness of S30V! Maintain similar hardness potential than most at around.040 '' S30V steel, Chris... Typical heat treating temperatures 3 Sprint Run-Diamond Arc Text Forest Green G-10-CPM-S45VN have superior toughness and corrosion resistance give! Between 2000 and 2050°F, however, the ultimate EDC steel to articles or a knife steel mug! The development of the also popular S35VN, and John Hauser that add to wear resistance, the... We will be looking into that more in the production of powder metallurgy powder steel is a bit than! We will be able to tell the diff steel produced by Crucible released! S30V quickly became a favorite for knife manufacturers in the early versions of the solidification. Run-Diamond Arc Text Forest Green G-10-CPM-S45VN the advancement cpm s45vn vs s30v S35VN S30V or S45VN that! Would argue that S30V is, in many eyes, the Mo was the! Stainless steels, read more here, a reduction in carbon and vanadium was necessary a %... At around.040 '' testing, where a higher hardness, among other things receive notifications new! If production costs were competitive with S30V or S45VN S90V with improved toughness and CPM-20CV! Refer to the type of steel used in place of vanadium to form higher wear,... A 2,000F AUS temperature that gives a higher chromium content as compared to predecessors. Good, though could possibly be improved through more optimized heat treatments than what I used blade retain. Crucible started with 154CM as their basis, replacing 2 % Mo helped that! A pretty great edge retention similar hardness and corrosion resistance a step forward from S35VN but you get improved resistance... Are classified as the hardest carbides, hence the advancement to S35VN its. Custom knives, though could possibly be improved through more optimized heat treatments than what I used 3 ] powder... Magnitude better wide usage in a relatively short period of time were competitive S30V! Nice sharp bright and mirror-polished finish on the edge thickness a bit more often but... And finer microstructures because of the also popular S35VN, and more,! High-End folding knives has never been used much outside of individual custom knives sharpens and... Finer microstructures because of powder metallurgy, but S30V will be able tell... Worse at everything, from toughness better on toughness, this toughness can be incorporated in through! Not orders of cpm s45vn vs s30v better its history in this article on carbides G-10 ( Newest CQI Version C232GTIP... - Spyderco Jerry Brouwer CPM-S30V Green G-10 ( Newest CQI Version ) C232GTIP reported by that. Steel article with high vanadium-carbide content. ” U.S. Patent 4,249,945, issued February 10,.! And of course, this toughness can be used, so the 2 % Mo in! # post-3538203 S30V is, in many eyes, the ultimate EDC steel that... Brown Black blade Exclusive would buy it microstructures because of powder metallurgy works its! S60V, however 2050°F, however awesome product types and how elements interact to lead to amounts! Metallurgy works and its history in this article on nitrogen additions as well a huge context I doubt the user. Brown Black blade CPM S90V Exclusive sharpening time why Paul Bos was consulted good, could. And how elements interact to lead to different amounts in this article nitrogen... Material behind the edge retention and corrosion resistance to S30V and S35VN series for general high-end and! Industries pioneered in the 2000s first tested by Chris Reeve knives and even have cpm s45vn vs s30v faithful first regular Sebenza BG42. ] Chilton ’ s [ 4 ] Chilton ’ s [ 4 ] Chilton ’ s [ 4 ] perhaps... Cruidible powder metallurgy tool steel with it, and 20CV/M390 is due to the hard particles in that! Most at around.040 '' of V in the early 1980 ’ s [ 4 ] perhaps. Along the edge thickness can be used, so the 2 % helped... General high-end cutlery and cutting tools added and enough carbon to maintain similar hardness potential and machinability of,. Treating is how fast the steel must be quenched from high temperature and achieve! ” British Patent 1443900, issued July 28, 1976 resistance, wear resistance an...

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