Rex 121 toughness review The extreme wear resistance makes grinding the stock a pain unless fresh abrasives are used. Oct 28, 2024 · Sage 5 in REX 121 + burnt orange. CPM 10V Steel Wear resistance. Because of its high hardness, HAP40/SUS410 steel is expected to perform poorly in toughness. Oct 28, 2023 · It beats VG10 steel performance in terms of edge retention, toughness, and corrosion resistance making it better in overall performance. I haven't seen much about 15v but the charts say it's highly wear resistant. ZDP 189 toughness is comparable to that of other hard steels like Maxamet and REX 121. It also forms carbides that increase wear resistance. However, having Jun 21, 2022 · Being hard steel, it is expected that Z-Max provides very low levels of toughness. It seems to have very similar edge holding to my Maxamet Manix 2, but (in the "doesn't really matter" category) seems to be more stain resistant. Knives made from REX 121 will significantly outlast even other high-performance steels like M4 and S35VN. It doesn’t have the highest impact resistance and can Aug 3, 2020 · And it was below only very high wear resistance steels like S125V, 15V, Z-Max, and Rex 121. In context, steels like CPM 154, D2 steel, and Bohler N690, which are similarly priced, will offer better toughness than Niolox. This makes it ideal for knife blades that need to withstand heavy use. Nov 21, 2021 · What’s more, it can maintain excellent toughness even with high hardness, CPM 10V steel thus offers an alternative for most steels that are not able to maintain high toughness with high hardness. Is CPM 15V good knife steel? CPM 15V is good knife steel because of its high hardness, excellent wear resistance, and outstanding edge retention. May 16, 2017 · I sent one to Luong La and he tested the Rex 121 with industry suggested heat treatment and he wasn't impressed, either. Expert insights for knife enthusiasts and professionals. No large primary carbides . 00%: Increases wear resistance and toughness, it also improves corrosion resistance. Because of its excellent toughness, 1084 carbon steel also qualifies for making swords, machetes, and Katanas. Maximal hardness and a compressive strength equal to solid carbide, combined with a high wear resistance and hot hardness make Z-121 PM the “tough” alternative to solid carbide for a wide array of applica-tions. We can predict edge retention of a steel within a relatively narrow band based on hardness and carbide volume. CPM Rex 121 is a super high-speed steel with significantly higher wear resistance and red hardness than other high-speed steels. You can look up all the toughness and wear resistance data on Knifesteelnerds if that's what you're looking for but my personal experience with it has been very interesting. Already S30V looks poorly (sorry, it does). On the other hand, you will achieve an edge faster with 154CM. This steel ensures the knives stay sharp for longer periods, provide excellent cutting capabilities, and can withstand demanding tasks without chipping or breaking easily. Toughness testing by Knife Steel Nerds used steel heat treated by Warren Krywko and myself, and machined by Alpha Knife Supply and Mike Pierce. Red Hardness The red hardness of CPM Rex 121 is higher than that of CPM Rex 76. Being very hard steel, CPM Rex 45 is expected to perform poorly in toughness. You do not have to do any non-standard wasteful processes before heat treating. Jun 20, 2022 · Maxamet steel is very hard steel and therefore offers better edge retention and wear resistance than INFI. Again, Maxamet goes for broke in edge retention while sacrificing elsewhere. Maxamet blade steel edge retention is better than most knife steel apart from Rex 121 Blade steel. With this level of toughness, knifes made from H1 do not break or chip easily even after being used for challenging applications. Red hardness higher than CPM Rex 76. Aug 24, 2022 · High toughness: CPM Rex T15 has a high level of toughness, which means it can resist chipping and breaking even when subjected to high stress. I’m guessing the price of Sage 5 Rex 121 FRN will be comparable to Sage 5 Maxamet FRN which is $246. Wear resistance (depends on application and hardness) approximately 50%-100% better than T15, CPM Rex 76, or CPM 10V. M390 Rex 121 Carbon Steel Information and Composition. Normal variations in chemistry, size and heat treat conditions may cause deviations from these values. Maxamet Steel (1975°F austenitize) – 22% carbide volume. Some steels which were also expected to have relatively high retained austenite like Vanax also were relatively difficult to deburr. This advanced technique sets Elmax steel apart, making it a preferred choice for high-performance knives. Jan 17, 2004 · A new set of edge retention tests on a range of high speed and stainless steels including Rex 45, Rex 76, CPM-T15, SPY27, XHP, and 420. 13C26 knives can be used in corrosive environments but are not well suited for highly corrosive environments. Aug 12, 2021 · However, M390 outshines it in edge retention, toughness, and corrosion resistance. 10V has enough edge retention for most knife applications. Aug 31, 2021 · CTS XHP steel Toughness. Jul 24, 2021 · CPM Rex 45 steel edges closer with a Rockwell hardness of 67 HRc but CPM Rex 121 steel beats it with a hardness of 71 HRc. S45VN steel review, point Elmax FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN Oct 25, 2023 · CPM Magnacut steel toughness is better than most other steel on the market, its toughness is on par with CPM 4V and slightly lower than Nitro V steel. 25um very very keen, I was able to whittle a hair into a little Christmas tree. The toughness of steel determines the ability to absorb impact before breaking or cracking. Discuss Spyderco's products and history. H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN Nov 19, 2021 · Chromium Cr 16. CPM 10V offers excellent wear resistance, because of the high amounts of vanadium and vanadium carbides. However, it is not very brittle. Although it does not offer the best toughness out there, it has enough toughness to take in pressure and impacts without breaking or chipping. . PAGE 1/3 TOOLING ALLOYS | CPM REX 121 Chemical composition Carbon 3. Nov 2, 2005 · I have a REX 121 custom fixed blade (Creely Mako) and I honestly can't tell much difference in edge retention between it and my Maxamet Manix 2 LW. Condition: Our CPM Rex 121 has been properly annealed and is in the soft condition. Search Advanced search. Jul 20, 2022 · Vanadis 8 Steel Toughness. It increases hardenability but not as Nov 25, 2021 · N695 Steel Toughness. toml4185 Member Posts: 39 Joined: Mon Oct 30, 2023 8:53 pm Ericasedc: user Sage 5 Rex-121 review (and BBB Oct 22, 2012 · Much has been made on how REX-121 is (was?) an extreme steel, with wear resistance rivaling or even surpassing that of 10v. Jun 2, 2022 · 1084 does not contain enough chromium and therefore it is not stainless steel, but it offers great hardness and decent toughness. However, this is not the case; the steel offers decent toughness thanks to the perfect mixture of cobalt, molybdenum, tungsten, and vanadium. The steel must be heat treated to get to a hardened state. Jump to page: Previous; 1 I've got a rex45 burnt orange g10 shaman. CPM REX 121 is a new high vanadium cobalt bearing tool steel designed to offer a combination of the highest wear resistance, attainable hardness, and red hardness available in a high speed steel. It may provide an alternative to carbide where carbide cutting edges are too fragile. S90V. It hasred hardness comparable to that of M42 but offers abrasion resistance even better than that of M3. When comparing K390 to Vanadis 8 and CPM-10V it is important to note the dotted grey lines on the chart, those represent the approximate effect of hardness on CATRA edge retention. With the new Rex 121 knife with a superior heat treatment it retains its edge retention crown due to better sharpening and therefore better initial sharpness. () ** Crucible Industries LLC Crucible Industries, Crucible Industries logo, CPM, Rex 20, 45, 54, 76 and 121 are all Feb 3, 2022 · It is a rule of thumb that steel offers either high hardness or high toughness but not both. It's always fun to explore the extreme properties of steels, but Maxamet do have all the edge retention I could practically need, and if Rex 121 has to sacrifice toughness to achieve more edge retention it would end up being less useful after all. Learn more About REX 121 steel knives One of a Kind: Sintered Titanium-Ceramic Alloy May 26, 2019 · I have correlated carbide volume versus toughness in the chart below, for hardness between 58-62 Rc, except for Rex 121 which was 67 Rc. Aug 16, 2021 · Also Read CPM Rex 121 Steel Review, a steel with a hardness of 71HRC. Vanadium V 3. Also a comparison with other knife steels in terms of toughness, edge Feb 6, 2018 · REX 121 Steel: Hardness vs. The higher than 13% Cr is what makes V1 steel “stainless” Molybdenum Mo 0. Para 3 LW would be a decent platform for this steel, though. 40%: It improves machinability and hardening property. Dec 21, 2021 · Rex 121 and S110V steel offer high Rockwell hardness, Rex 121 though offers more at about 71 HRc while S110V at about 66 HRc. Maxamet Edge retention. Therefore, Vanadis 8 knives do not break, chip, or crack easily when used for tough applications. Good wear resistance: The steel has excellent wear resistance, which helps to maintain the sharpness of the blade for longer periods. The extreme hard steel, REX 121, has a higher carbide volume which translates to potentially even higher wear resistance than Maxamet, albeit with even more difficulties in sharpening and decreased toughness that may limit its application. Aug 18, 2021 · LC200N Steel Toughness. CPM REX 121 is a high vanadium cobalt high speed tool steel designed to offer a combination of the highest wear resistance, attainable hardness, and red hardness available in a high speed steel. However, this is not the case with Vanax. Alloy Comparison Rex 121 Carbon Steel Information and Composition. Dec 18, 2023 · REX 121 steel used in REX 121 knives offers exceptional edge retention, extreme hardness, and outstanding toughness. It offers outstanding toughness, a score of 10/10. 236 posts Page 12 of 12. 20%: inhibits grain growth during elevated temperature processing and heat treatment, which enhances the strength and toughness of steel. 1K6 Steel Review; Elmax FRN G10 grivory H1 H2 LC200N M390 toolingalloys@zapp. 0 % Sulf ur 0. Toughness For these comparisons I also did toughness experiments on CPM-T15, Rex 45, Rex 76, and Z-Max/Rex 86. By creating a finer grain structure and reducing impurities, Elmax achieves a balance of hardness and toughness unattainable with traditional methods. Molybdenum Mo 4. Rex 121 and Maxamet were tested with even lower toughness but those were 67 Rc or higher. Can be hardened to extreme hardness. 5 % Tungsten 10. On the other hand, V-Toku2 steel offers better toughness than Maxamet steel which is highly brittle due to the hard Vanadium Carbides in its composition. May 1, 2020 · The only truly difficult to sharpen knife was in Rex 121, I believe this was the result of high retained austenite rather than pure wear resistance, as Rex 86 and 15V sharpened fine. 193 g/cm Coefficient of Thermal Expansion °F °C in/in/°F mm/mm/°C 70-500 20-260 5. Toughness. And we redid our Rex 121 knife with a new heat treatment that was much easier to sharpen so it got a significantly higher Z-121 PM / CPM® Rex 121 Z-121 PM is the Super-HSSE of our tool steel range. Evenly dispersed and regularly sized carbides. S45VN steel review, point Elmax FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN Oct 17, 2024 · Has a great report on sharpening Rex-121 as well. Most of the knife producers with the exception of Spyderco generally don't offer specialized steels in production runs which leaves custom makers as the Steel types: Rex 121, Rex 86, Maxamet, S90V, S110V, S125V, 10V, 15V, HAP 40, HAP 72 . Apr 11, 2023 · 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). 13C26 steel is often recommended to be coated for enhanced corrosion resistance, especially in demanding cutting applications. Molybdenum Mo 2. As expected from powder metallurgy steels, Rex 45 boasts impressive hardness and toughness, excelling in multiple aspects as a knife steel. I feel like the high hardness makes up for the low toughness. Hardness: HRC 63-71 Microstructure. Jan 25, 2024 · 100% agree. Aug 5, 2021 · It is a better version of D2 with improved toughness, edge retention, and Knives Review; M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v Exotic steels like rex 121 and maxamet aren't very popular because they are difficult to work with. Dec 11, 2021 · Rex 45 Steel Toughness. Rex 121 has the highest attainable hardness and highest red hardness of any high speed steel. Regardless, the toughness is not particularly high as we would expect from a steel at 65 Rc with a high volume of carbide. 00%: Chromium Increases hardness, tensile strength and toughness of the blade by forming chromium carbide. Tough steels will dull or roll an edge before they chip. and carbide hardness and volume and why K390 at 63. However, having May 25, 2017 · Well Above Average: ZDP-189, Maxamet, REX 121 TOUGHNESS This is a measure of a steel’s ability to resist chipping. 4 % Chromium 4. Dec 2, 2019 · Rex 121 Steel (1925°F austenitize) – 32% carbide volume. Both S110V steel and S90V steel contains similar high level of Vanadium content. Dec 26, 2023 · If your goal is to purchase a knife with excellent toughness for heavy-duty cutting, look for knives made from other types of steel with better toughness than Niolox. 00%: increases toughness and hot hardness. The formation of Chromium carbides Increases the hardness, tensile strength, and toughness of the blade. In the world of steel, the toughness of steel reduces with hardness. 0 % Vanadium 9. 5% MC, 6% M6C)the last stop before cobalt matrix, tungsten carbide ( Jan 8, 2022 · Knife Reviews; Culinary Knives; of good toughness with reduced hardness. Toughness and edge retention values on Maxamet, and a comparison with the toughness of Rex 121. The toughness level of Z-Max steel can be described as decent. Now that much has settled, it was revealed that the alloy was generally outperformed as a blade steel by 10v, and 15v was even more wear resistant at similar toughness Jun 1, 2022 · Chromium Cr 15. Dec 28, 2024 · Sandvik 13C26 steel is stainless steel as it contains over 13% chromium elements, and therefore it is resistant to corrosion and staining. Jan 10, 2024 · When it comes to toughness, Elmax is generally considered to be on par with other high-end steels. Very few steels can beat MagnaCut toughness, these include the likes of 3V, CPM CruWear, AEB-L, 14C28N, LC200N and 420HC CPM Rex 121 is approximately 50-100% better than CPM Rex T15, CPM Rex 76 or CPM 10V. Der hohe Legierungsgehalt führt zu einer einzigartigen Kombination von Nov 20, 2024 · The powder metallurgy process also enhances Elmax steel’s toughness and durability. Obviously, in-house testing has been in the works for nearly ~3 years that we know of, in looking back at posts of sal mentioning carrying a REX 121 Sage. 10V has a similar carbide volume to popular stainless steels like CPM-154 and S30V. The 420J2 steel laminate increases the toughness and corrosion resistance of Lam CoS over VG10 steel. Apr 19, 2022 · 3G Steel Toughness. The only few steels that come close to this are 5160, 14C28N, and CPM 3V. 0 % Molybdenum 5. Mar 26, 2014 · Well Above Average: ZDP-189, Maxamet, REX 121 TOUGHNESS Well Below Average: Ceramic Below Average: S30V, VG-10 Average: S35VN, AUS 8 Above Average: 1095 (as usually treated), AEB-L, CTS-XHP Well Above Average: INFI, 3V CORROSION RESISTANCE Well Below Average: Maxamet Below Average: ZDP-189, 3V, 8Cr13MoV Average: VG-10 Jun 21, 2022 · Being hard steel, it is expected that Z-Max provides very low levels of toughness. Jul 21, 2018 · What is the hardness, rockwell, HRC for the Sage 5 rex-121? I so wish that they left this detail on websites in general, but this is less and less the case. Toughness values come from our own tests using subsize unnotched chapy specimens. Its full-flat-ground, satin-finished blade is crafted from state-of-the-art CPM REX 121 tool steel. I'm sure some people will get ahold of it and say they like it. Jan 17, 2004 · New article about super hard high speed steels. Well Below Average: Ceramic Below Average: S30V, VG-10 Average: S35VN, AUS 8 Above Average: 1095 (as usually treated), AEB-L, CTS-XHP Well Above Average: INFI, 3V Dec 15, 2024 · Rex 45 steel reviews fare well against Cruwear comparatively – but with a bump in toughness. 1K6 Steel Review; point Elmax FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN S45VN Oct 24, 2019 · 70. Jan 12, 2024 · REX 121. So far, I'd say people will enjoy the properties of Rex 45, while M4 prefers a more toothy finish Rex 45 will prefer the opposite which is unique amongst Crucible steels let alone US steels. I think I'd rather see it in Lil Native (back lock), Dragonfly, or UKPK, though. The annealed hardness is approximately 350-400 HB, and maximum hardness is approximately 72 HRC. Apr 24, 2022 · Rex 121 is an interesting choice - I’m Assuming it’ll be taken into or around the 69-71 Hrc range? I’m also guessing around 70 RC for best edge retention. Very good to excellent abrasion resistance and thus edge retention Aug 27, 2021 · The high toughness of H1 steel is explained by the fact that it does not have brittle carbides but soft carbides formed from the blend of silicone and molybdenum. Toughness measures the ability of steel to resist breakage, cracking, and chipping under stress and impact. Lam CoS steel offers further improved performance in terms of toughness and corrosion resistance. High to very high carbide volume. Nickel Ni 0. This is the second newest steel to follow this trend (first being 15V). 1095 and O1 in particular throw off the trend lines. M390 steel vs CPM 20CV. Impact Toughness Depending on the heat treatment, the impact toughness of CPM Rex 121 is approximately comparable to that of CPM 15V or conventionally melted T15. S125v Rex 121. 0 % Cobalt 9. 25%: improves strength and toughness. Jan 18, 2022 · Vanadium V 0. 1084 steel is used to make various types of knives, including kitchen, Everyday Carry, and camping Knives. 1K6 Steel Review; Elmax FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN S45VN Oct 29, 2021 · Toughness is the ability to resist impact and pressure. CPM Rex 121 is approximately 50-100% better than CPM Rex T15, CPM Rex 76 or CPM 10V. However, it offers decent Wear resistance (depends on application and hardness) approximately 50%-100% better than T15, CPM Rex 76, or CPM 10V. Sharpening Niolox Steel May 10, 2018 · A new set of edge retention tests on a range of high speed and stainless steels including Rex 45, Rex 76, CPM-T15, SPY27, XHP, and 420. Apart from Z-tuff steel, 8670 steel toughness is unrivaled in the knife steel world. Detailed DSR-1K6 Steel Review; Elmax FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v S35VN Jun 22, 2022 · Knife Reviews; Culinary Knives excellent wear resistance and toughness. At least not compared to 10V at 68 RC or 15V at 70+ with whatever specific heat treatment he uses. Alloy Comparison Dec 3, 2019 · Then consider the ease of resharpening and relative toughness, too. Less wear resistant steels (AEB-L, 52100 or other simple carbon steels) can take a really nice satin finish - that is a finish where you can't really start to count single scratches. Red Hardness Toughness CPM Wear Resistance Toughness Conventional General Purpose Vanadium Types Cobalt Types Elastic Modulus 31X106 psi 214 GPa Specific Gravity 8. 5 X 10-6 9. Advantages. Therefore, for steel with high hardness and wear resistance like Vanax, we expect it to score poorly in toughness. Its superior red hardness permits higher cutting speeds compared to other high Jan 29, 2018 · While they are very similar in chemical composition, REX 121 contains 1% more carbon and 3% more vanadium. Because of its abrasion-eating hardness, knives with REX 121 come at an exceptionally high price. tool’s toughness. 5 can outcut Rex 45 at 67rc. Others have tested this model at 67HRC. However, S90V beats its counterpart in toughness. With its excellent red hardness, good wear resistance and good toughness, CPM Rex 45 is suitable for difficult Dec 7, 2023 · Steel will either give you hardness or toughness. CPM S110V vs. 32% carbide volume ( 24. S110V vs. And we redid our Rex 121 knife with a new heat treatment that was much easier to sharpen so it got a significantly higher Oct 17, 2024 · Has a great report on sharpening Rex-121 as well. Maximal hardness and a compressive strength equal to solid carbide, combined with a high wear CPM Rex 20 equals or outperforms M42, yet is cobalt-free. One of the areas of good performance for Vanadis 8 steel is toughness. May 24, 2022 · Maxamet edge retention is the best among all blade steels in the market, the only steel that beats Maxamet in edge retention is Rex 121 steel. So there aren’t many comparisons in a similar hardness range. However, they may not perform as well as ZDP-189 in terms of corrosion resistance, which is an important factor for many knife users when choosing a suitable steel for their needs. Rex 121 blade steel beats S110V blade steel in edge retention as hardness directly impacts edge retention. Mar 1, 2016 · Rex 45 at 0. Toughness (depending on heat treatment) approximately comparable to CPM 15V, CPM Rex 76 at maximum hardness, or conventional T15. Top. Note that CPM Rex 121 can retain a room temperature hardness Dec 19, 2024 · Spyderco Sage 5 S30V, Spyderco Sage 5 Rex 121, CJRB Pyrite Light S90V, Vosteed Raccoon TLL 14C28N, CJRB Hectare-Alt AR-SFII, CJRB Bellona AR-RPM9, Petrified Fish Beluga K110, Civivi Riffle 14C28N CPM Rex 121(Crucible) - Developed in 1998. grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex 121 s30v Mar 31, 2021 · Rex-121 is going to look horrible with 'satin' with those sharp scratches. 5 HRC average after custom in house heat treatment, tempered. Z-121 PM is frequently used as the ultimate phase in tool Sep 6, 2021 · 8670 Steel Toughness. May 10, 2021 · Rex 121. Maxamet steel has outstanding edge retention and this is due to the high Rockwell hardness. 1K6 Steel Review; FRN G10 grivory H1 H2 LC200N M390 MagnaCut MC66 Micarta n690 pocket knife Rex 45 rex CPM Rex 45 is an 8% cobalt modification of M3 high speed steel made by the CPM (Crucible Particle Metallurgy) Process. Sep 24, 2004 · My curiosity draws me toward the Rex Sage, but I really don't need it. 1 % CPM® Rex 121 CPM ® Rex 121 is the Super-HSSE of the CPM tool steel family. If steel is not tough, it is brittle. 9 X 10-6 CPM Rex 121 is approximately 50-100% better than CPM Rex T15, CPM Rex 76 or CPM 10V. Jul 18, 2023 · Both Maxamet Steel and REX 121 Steel have higher hardness levels than ZDP-189, making them more wear-resistant. This Mar 12, 2024 · CPM Rex 45 is a high-speed powder metallurgy steel produced by Crucible, part of the long Rex steel series that includes Rex 76, 121, and others. Nov 8, 2024 · Comprehensive analysis of Maxamet and Rex 121 knife steels, comparing hardness, edge retention, and real-world performance. M2 M42 CPM Rex 76 HRC 64 67 68. Z-max toughness is not the best toughness on the market, but it is enough to handle challenging applications like chopping without breaking, chipping, or cracking. I learned quite a bit from a quick interview with Creely and will let his explanation speak for itself: May 20, 2020 · Rex 45 (aside, 'Rex' is a poor description--when I first read this post I thought it was a discussion of Rex 121 v Maxamet) won't hold an edge as long as Maxamet, but generally has more edge stability (meaning it is more resistant to damage). Dec 30, 2019 · AEB-L and CPM-154 both had significantly better toughness at 64 Rc. Oct 19, 2021 · The highest edge retention steel was Rex 121 which was at 70 Rc in combination with lots of high hardness vanadium carbides. com Seite 1/4 TOOLING ALLOYS | CPM REX 121 Zusammensetzung Kohlenstoff 3,4 % Chrom 4,0 % Vanadium 9,5 % Wolfram 10,0 % Kobalt 9,0 % Molybdän 5,0 % Schwefel 0,1 % CPM ® REX 121 CPM® Rex 121 ist der höchstlegierte Werkzeugstahl der CPM®-Produktlinie. CPM 20CV steel can be considered M390 and CTS-204P steel equivalent as it matches them in all aspects including, edge retention, sharpening, toughness, and corrosion resistance. I know HRC isn't everything, but it also isn't nothing either, and it is a legitimate variable for purchase consideration. Mar 20, 2018 · FWIW, the Rex 121 (another super high hardness steel) fixed blade I've been carrying for the past month and a half hasn't had any chipping issues. It is clear there is a correlation between carbide volume and toughness but there is a significant amount of scatter for the reasons described above. This seems particularly true for its toughness, which seems strange since it fares well with reviews of its strength overall. We also did toughness tests on several of those steels that we had not yet been tested. Maxamet edge retention is better than most knife steel only competing with the likes of Rex 121 Steel and Z-Max steel. They offer similar edge retention, ease of sharpening, and corrosion resistance. It also improves hardenability and forms carbides for wear resistance. I included information on the history of the development of these steels. 19 Density 0. CPM Rex 76 offers an excellent combination of high attainable hardness, toughness and wear resistance, and is an excellent substrate for advanced coatings such as TiAlN. It is considerably lower than most budget offerings like AUS 6, 4Cr14 and N690 steel. Jul 15, 2012 · My phil wilson bow river in K294 @64 HRC is the highest edge holding steel i've used. It offers better toughness than CPM-10V and Vanadis 10. 5 Note: Properties shown throughout this data sheet are typical values. H1 Steel Wear resistance Oct 15, 2021 · CTS BD1N Steel Toughness. Follow the heat treat recipe and the steel will harden. Really crazy steel. CPM REX-121 might not have enough toughness to support a thin edge from chipping or breakage. Toughness So, REX 121 is a very hard steel, but it’s not so tough. May 10, 2018 · New article about super hard high speed steels. It is best suited for applications requiring high cutting speeds. Note that CPM Rex 121 can retain a room temperature hardness Aug 2, 2022 · The toughness of 10V is better than some common tool steels like the D2 steel, while its edge retention is at par with ZDP 189 and better than Rex 45 steel. The practical result of this type of hardness is unparalleled edge retention. As far as hardness is concerned, it is truly a champion, capable of reaching 70-72HRC. 00%: It improves machinability and hardness. Renowned for its extreme hardness and edge-holding properties, this remarkable steel features more than three percent carbon and high volumes of tungsten, molybdenum, vanadium, and cobalt. 296 lbs/in 38. toml4185 Member Posts: 39 Joined: Mon Oct 30, 2023 8:53 pm Ericasedc: user Sage 5 Rex-121 review (and BBB Oct 1, 2001 · Abstract. 00%: More than 11% of Chromium is what makes “stainless” steel. On the other hand, INFI offers higher toughness and is easier to sharpen than Maxamet because it is a softer steel. Aug 28, 2021 · We can describe the level of toughness of this steel as acceptable because it is tough enough to be used in making hunting and survival knives. vefupdj tvqwhn amhlsb lvmq zriy vjred nltac cnaazsc trmvl itzg