Hap40 edge retention. In stock (1) SUS410 Steel Edge retention.

Hap40 edge retention It is also better than HAP40 steel in terms of corrosion resistance as it has a higher percentage of chromium in its composition than HAP40. Yu Kurosaki Moon Light - GEKKO - series are crafted out of HAP40 Powdered High-Speed Steel made by HITACHI Metals,ltd, one of the hardest blade steel in the world, which provides extremely hard, abrasion resistance, edge retention compared to the any other materials as Aogami Super, ZDP189 and SG2(R2). I think it's just CQI. HAP40 steel has a hardness of ~66 hrc and is known for its incredible edge retention and great toughness despite being very hard. Sam. com/listing/brickard-heritage-collectionGood gravy its bricky on thingsSubscribe and hit the bell! Hit like and all t Edge stability is not edge retention—it refers to the ability to sharpen at low angles without chipping or rolling. The Hatsukokuro Hayabusa series is made from HAP40 high carbon steel laminated in soft stainless steel for easy maintenance. Blade: HAP40, Powdered High Speed Steel - Semi stainless. I like the long flat spot in the edge profile and the tip is one of the best I've seen. Going to do some edge retention tests. $479. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to You can't beat the retention of hap40. Made of HAP40 core steel and heat-treated to 68 HRC, this kiritsuke gyuto offers extraordinary edge retention ability. us. As a big fan of HAP40’s incredible edge retention, I’m sad to see these go. Because of the exceptionally high carbon content, this steel is also called “Semi-Stainless” whose hardness can reach 64-68HRC, perfected with outstanding sharpness and edge retention. Hopefully, the new steel will get good reviews. No HAP40/REX45? Made of HAP40 core steel and heat-treated to 68 HRC, this kiritsuke gyuto offers extraordinary edge retention ability. But is this high volume, professional kitchen work, Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 64-65 HRC so edge retention is excellent and these are durable knives when looked after correctly. Thin tip: Nope, fat and clumsy Tip flies thru onions: NO, wedges. Now again this is only three runs so the conclusions are not that strong (precise) but still the general trend is all that is important to this discussion here and specifically that the edge retention decreases as the micro-bevel angle increases. I am currently using a King PB-04 800/600 combination stone and a Naniwa 2k Green Brick. 7% of Chromium – For better edge retention and improved resistance to wear. Ease of Care Made by Hitachi Metals Limited, HAP40 is a steel that is well regarded for its hardness and the treatment of this range is around 67-68 HRC so edge retention is excellent and these are durable knives when looked after correctly. A microscopic image of the edge would be quite beneficial so that we could replicate the results. I favor carbon so AS is my pick in my home but I do use my HAP40 quite a bit. This is Sukenari (佑成) HAP40 High Speed Tool Steel Gyuto, with its signature Hairline finish and K&S Teakwood handle. Every steel has its place. creator-spring. HAP40 is a highly alloyed (lots of hard carbides) semi-stainless steel. Only Hap40 knives I know of are stainless clad over core steel even the Spyderco. Hap40 steel seems like the way to go. I’ve been using it for a while now and it cuts really well, however, I’m starting to feel like it’s dulled a little bit. I feel like a competent sharpener and have stone sharpened my knives for about 10 years. Unveil the exceptional craftsmanship and unrivaled edge retention of the Yoshihiro HAP40 Kiritsuke Knife with a mesmerizing Rosewood Handle. It’s rich chemical composition and fine microstructure allows the production of knives that posses an outstanding balance of hardness, toughness and edge retention. It metallurgy break down looks something like this. I am not an The only thing everyone can agree on is the edge retention. 5% vanadium. The edge retention of HAP40 is said that it has the best edge retention among SG2(R2), ZDP189, Everything the seller promises about the knife is a lie, except the handle is well finished and the edge retention is good, but only marginally better than R2. I've had to repair a major chip on the R2 knife and it was easier than I believe the HAP40 would have been. The same can also be said for “lesser” steels like 420HC. If you are looking for super edge retention on semi or full stainless (but let's call it what it really is - stain resistant at varying degrees), HAP40, Sg2/r2 and other PM steels are What are the opinions from users of knives made of HAP40 steel? Is it really an upgrade from VG-10? I read that hardness is a HRC of 65-66, which will retain an edge better than VG-10, but edge retention is better than white/blue, but it is quite abit more fragile and won't be able to run to as shallow of angles or as thin of grinds as more durable steels. But HAP40 is a cool steel, and try it if you have not. This is Sukenari (佑成) HAP40 High Speed Tool Steel K-tip (Kiritsuke) Gyuto, with its signature Hairline finish and K&S Teakwood handle. If you aren’t getting good edge retention, I’d check burr removal first before blaming the steel. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to Going to do some edge retention tests. My folders don’t see any serious work and I’m happy with any of these steels. Hitachi HAP40 steel is a high-speed powdered metallurgy tool steel used in Japanese kitchen knives. You don't need diamonds to sharpen Hap40. It's Edge Retention Test- HAP40 Login/Join : mdblanton. CPM Rex 45: Boasts even better edge retention than HAP40, but Edge Retention. HAP40 has proven to be a far superior steel and Kohetsu brand hits all The HAP40 (Funmatsu Haisu) Stainless Steel is poised to be one of the finest steels on the stainless knife market, maximizing both cutting performance and edge retention. I have an Endura in HAP40 and like the steel a lot! Great edge holding, but not too hard to sharpen imho (and I am really not good at it, - As far as I know, the edge retention of HAP 40 is not THAT far away from ZDP, but it is easyer to sharpen Great variety of knife styles, sizes, and steels, with extensive information about the steel types and their suppliers. But of greater note is its almost It has much less edge retention than the super steels, which can also be taken very very hard (some up close to 70rc) however these steels are much less tough and as such not a good option for thin geometries as they are to prone to chipping and breaking. Made by Hitachi Metals Limited, HAP40 is a steel that is well regarded for its hardness and the treatment of this range is around 67-68 HRC so edge retention is excellent and these are durable knives when looked after correctly. Description We developed the Kazan line in partnership with a steelmaker in Kansai, Japan using HAP40, a powdered steel blend featuring high levels of Vanadium, Molybdenum, Cobalt and Tungsten. Plus they are relatively accessible to the average consumer, but gonna be pricey my dude. Hap 40 can sharpen up in a few minutes to a fine edge. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to Edge Retention Test- HAP40 Login/Join : mdblanton. Edge Retention is a measure of a steel's ability to maintain a sharp edge over time. they also don't take high I have the Takamura 180mm in R2 but was looking at the Kohetsu in HAP40 - it contains Tungsten which gives it the edge retention but also means it is hard to sharpen. It also improves steel resistance to wear, HAP40 steel however offers better toughness than V-toku2 steel due to the finer grain structure compared to the coarse grain structure of V-Toku2 which makes it a bit more brittle. . Keep in mind the HRC is highly determinant of the edge retention you will get on both knife steels. Neither steels sharpen very easily, and I highly suggest diamond/CBN stones for the best results. In terms of cutting performance, edge retention, some knife experts believe that HAP-40 is probably the best Japanese cutlery steel on the market. Challenges of Sharpening HAP40 and ZDP189 Knives Edge Retention. 4. It is a fine grained steel that takes a very sharp edge. We have decided to add this Sukenari HAP40 with a simple polished finish. HAP40 is in the lower/mid range of edge retention for high wear-resistance air-hardening stainless and semi-stainless steels (most of which are high-speed steels), and Blue Super is on the high end for oil- or water-hardening carbon steels. I am not an expert in these matters but high alloy steels typically have more carbides which lead to higher edge retention but lower toughness and are consequently harder to sharpen Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 64-65 HRC so edge retention is excellent and these are durable knives when looked after correctly. Even with hap40’s hardness and edge retention, it wouldn’t be able to hold a 16k edge after a few slams on a cutting board. The Kohetsu's are a consideration mainly do to the lower price. The edge length tends to run a bit short, so I’d advise against a 210. Kind of a bummer, if true. Maybe a days The powder metallurgy HSS steel HAP40 manufactured by Hitachi can be hardened up to between 64 and 68 Rockwell. In no universe is HAP40 easier to grind much less to sharpen than an actual cutlery steel like R2/SG2. ), its edge retention (Sometimes this is hardness to resist deformation when chopping, sometimes this is acid resistance, sometimes this is wear resistance. At the core of these knives lies HAP40 powder steel, one of the hardest HAP-40 is a powder metallurgy High Speed Tool Steel from Hitachi Metals Ltd. I've done searches on both the Sukenari's and the Kohetsu's, and the opinions on these are all over the place. with soft steel of HRC in the low 50s is going to dull a lot faster than R2 with an HRC in the low 60s or ZDP-189 or HAP40 in the mid 60s. It needs to have very good edge retention and some decent belly for rocking, price likely $150 or less. Rex45 also has better edge retention, as others have mentioned, but in my experience, it sharpens the same as Hap40, with the same level of sharpness. Of the In the real world from my usage/testing Rex45 is a fair bit better in terms of edge retention & toughness, the more popular theory for this difference seems to be heat treatment, I'm not entirely sure that's entirely it, but I have been super mindful of sharpening both identically as possible and I would not say Hap40 is a steel I would seek out buying more of, Rex45 on the Made by Hitachi Metals Limited, HAP40 is a steel that is well regarded for its hardness and the treatment of this range is around 67-68 HRC so edge retention is excellent and these are durable knives when looked after correctly. Triggers don't pull themselves: posted . I sharpen it more often than it needs, mostly a quick hone rather than a full sharpen. HAP40 will form a patina over time but a bit more slowly than som Going to do some edge retention tests. I love the edge retention of my SG2 knife and I don't have issues with chipping. I have a Sukenari 165mm petty knife in HAP40 steel with an ebony handle. The durability and edge retention is the big feature of this range. What angle is the edge sharpened to? Too acute an angle could cause the edge to roll and seem dull. This model is fitted with a stunning "Tottori Sands" maple burl handle designed and made by Oster Rob in Slovenia inspired by Japan's largest sand dunes. Ease of Care Made in Seki City, Japan - The Hayabusa HAP40 steel is all about edge retention and durability and this range offers a great opportunity to get a knife that's simple, elegant and retains a wickedly sharp edge for a long time! Filter: Availability . JohnDoe99 Member Posts: 155 She is a nanny and cook for a family, and occasionally other people with no understanding of knives will be using it. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to I have an Endura in HAP40 and like the steel a lot! Great edge holding, but not too hard to sharpen imho (and I am really not good at it, - As far as I know, the edge retention of HAP 40 is not THAT far away from ZDP, but it is easyer to sharpen The edge retention of HAP40 is said that it has the best edge retention among SG2(R2), ZDP189, Aogami super. I've never really felt that it was dull even if it hasn't seen a stone for months (it has a pretty aggressive grind). I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to HAP40 (Funmatsu Haisu) stainless steel represents a significant advancement in the stainless steel knife market, maximizing cutting performance and edge retention like few others. Toughness is better than any other steel I've HAP40 is a high end semi stainless steel known for it's amazing edge retention. Edge retention is not quite as good as the PM steels, but still very good. 27% of Carbon – For an enhanced hardness and better resistance to corrosion. HAP40 is one of the hardest steels available for knife-making and it provides amazing edge retention. Jeff B Posts: 14936 Joined: Fri Jan 27, 2017 11:59 pm Location: Louisville, Kentucky Has thanked: 2267 times Been thanked: 2542 times. The edge retention ranks at the top of the list of any steel we currently Not even Hap40. Ease of Care Hap40 is a high alloy steel and AS is a low alloy steel. The HAP40, by Hitachi, is a powdered semi-stainless steel, has only about 4% of Chromium. folding, and Edge Retention Test- HAP40 Login/Join : mdblanton. 18 out of 5 stars. HAP40 steel has a hardness of ~66 HRC and is known for its incredible edge retention and great toughness despite being very hard. Despite the fact that hardness for hardness it doesn’t have any more edge retention than SG2 it’s significantly more difficult to both grind and to sharpen. I find it easy to take all three to hair whittling sharpness and would have to say HAP40 sits in the middle in regards to ease of sharpening and edge retention. Someone said that if HAP40 kitchen knife is used at home, it is not Hap40 is semistainless and often is a just bit different in tint compared to other stainless steel, or even the /akatsuki-hap40-200-wa-gyuto-no-box If you wanted toughness, many stainless steels do that already. I have the Takamura 180mm in R2 but was looking at the Kohetsu in HAP40 - it contains Tungsten which gives it the edge retention but also means it is hard to sharpen. I was wondering how the semi stainless builds a patina. Maybe a days In my experience and generally speaking, the higher the carbide content, the longer the fine edge retention (and working edge retention). This gives the Hatsukokoro Hayabusa HAP40 range a unique selling point in that it uses HAP40 Steel which is manufactured by Hitachi Metals Ltd and is one of the more superior metals that go into knife manufacturing. Capable of being heat treated to 68 HRC, HAP40 offers excellent edge retention. LC200N usually gets a mirror edge from me while I like 1000 grit for others like S90V or K390. Reactions: jedy617 Then, it's pretty similar to SG2. Both semi-stainless, pretty decent edge retention, but much easier to sharpen. I agree with Joe. I value high edge retention, great corrosion resistance, and decent toughness in an EDC folder. The powder metallurgy HSS steel HAP40 manufactured by Hitachi can be hardened up to between 64 and 68 Rockwell. Also looking HAP40 is definitely tougher than ZDP, and I expect edge retention to be better with my use. Made in Seki, a city famous for knife making, these knives will blow your mind with insane edge retention. HAP40 Edge Retention: with a maximum HRC of 68, the steel offers extremely good edge retention, might be the best edge retention you can find in high-carbon steel. This means Hap40 has a much higher percentage of other elements such as chromium and vanadium amongst others. Post by Deadboxhero » Tue Aug 14, 2018 7:07 pm. Any interest in Bohler K294? 2. Ease of Care Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 64-65 HRC so edge retention is excellent and these are durable knives when looked after correctly. It is due to the extreme hardness, which is 68HRC. VG10 steel gets defeated by HAP40 steel in terms of toughness and ease of sharpening. They really are not very far apart in terms of edge retention (in my experience) and the S30V is stainless. I really like HAP40 and I am holding out for that one. The edge retention of 20CV is Identical to that of Bohler M390 stainless steel and CTS 204P stainless steel. They are constructed using the San-mai method, San-Mai simply meaning three layers sandwiched together. HAP40 will form a patina over time but more slowly than some pure The Hatsukokuro Hayabusa series is made from HAP40 high carbon steel laminated in soft stainless steel for easy maintenance. Please let me know if you have any other questions, as I am lover of all things edge retention and high end steels haha. Sharp Guy Member Posts: 8678 Joined: Tue Jan 26, 2016 8:19 pm which was a harder impact than what caused the edge nasties on my HAP40 Delica but left the CruWear edge with no Hatsokokoro Hayabusa HAP-40 knives combine high performance steel with affordability. Nonetheless, CPM Magnacut’s unique chemical composition allows it to offer even superior edge retention and toughness, along with better corrosion resistance than CruWear. Edge Retention Test- HAP40 Login/Join : mdblanton. Edge retention: ZDP>>>HAP40>Magnacut>SG2 Toughness: (ability to resist chipping) Magnacut>>>HAP40>SG2>ZDP Stainlessness: Magnacut>>>SG2>ZDP>=Hap40. Hitachi HAP-40 is currently one of the most mysterious and attractive steels produced in Japan. That said, S30V is probably the better overall steel. I'd prefer an HRC of at least 64+ for edge retention, at lower angles. The blade is hand sharpened on several stones for grea Edge Retention Test- HAP40 Login/Join : mdblanton. HAP40 has ridiculous edge retention. HAP40. Migaki (Polished) line of knives feature beautiful edge geometry and are quite thin behind the edge and at the spine. The forging process involves extremely high temperatures, allowing for even dispersion of metallic elements, creating a steel composition that is robust enough for industrial applications. If you live by the beach, you might want a highly stainless steel like LC200N over something like S30V. Yeah the edge retention was the whole reason I opted for HAP40 (and corrosion resistance). HAP40 (Funmatsu Haisu) Stainless Steel holds the potential to become one of the best steels on the stainless steel knife market, maximizing cutting performance and edge retention like not many before. Sharpness ★★ ★★★ (5/5) Hardness/durability ★★ ★ ★★ (5/5) If you want highest edge retention, HAP40, YXR7, ZDP-189 are all renown for edge retention, as long as you know what your doing. But it's not night and day. The hardest steels with the smallest carbides (like Aogami, Shirogami, O1, AEB-L) have the highest edge stability, so they can take the finest/thinnest edges. 05%: Increases edge retention, hardness, and tensile strength. Sukenari forges high-speed steels and hard steels to maintain the same blade quality and edge retention. Considering the Gihei Hap40 210, amongst others The feature is very hard, abrasion resistance, edge retention is excellent. Both 20CV steel and MagnaCut steel The actual in use edge retention is also not any noticeably better than SG2, if anything hap40 seems to lose it's "fine edge" quicker. +1 to the Denka, Fujiwara seems to have the best heat treat in the business when it comes to AS; seems to hold an edge longer than Takeda with no compromise in toughness. No other steel on the CKTG site gets even close to HAP40 in terms of edge retention. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to Edge retention is very different between steels and heat treatments. Obviously I know Hap40 and W2 are far different steels, with Hap40 holding a clear advantage in the edge retention category and being a little more difficult to sharpen. The edge retention of steel is directly influenced by its hardness. By laymans terms Rex 45/Hap40 gets sharper, keener edges then some other steels, I value high edge retention, great corrosion resistance, and decent toughness in an EDC folder. The actual in use edge retention is also not any noticeably better than SG2, if anything hap40 seems to lose it's "fine edge" quicker. I keep the edge of my sukenari hap40 around 15 degrees or so and I've had no issues with chipping. My plan is to cut IPSC/IDPA cardboard targets, crosscutting against the grain, cutting with the grain is easier. That's about where I usually re-sharpen my knives. HAP40 steel is good knife steel because it offers great hardness, edge retention, wear resistance, and toughness. SLD. It seems to me like people with personal experience with the steel like it, but those experiences often seem to me to contradict Two of my favorite knives are Sukenari ZDP and HAP40. 0 selected Reset. Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 65-66 HRC so edge retention is excellent and these are durable knives when looked after correctly. Interesting to see Super Blue so low when it has a reputation for excellent edge holding. The HAP40 is a powdered semi-stainless steel, has only about 4% of Chromium. I have elmax in 61RC (rainer fastpak) and using your edge retention model it is telling me it has an edge retention up to ~730TCC; however, I'm curious to see how much this makes the toughness drop. I've one ZDP blade (Sukenari K-tip gyuto) and I really like it. All you have to do is occasually touch it with a higher grit stone, i just use my shapton 4000 glass stone, once you establish you edge and you talking a 6 month edge easily. 99 Product Review Score. But is this high volume, professional kitchen work, Chemical Composition of the HAP40 Steel. Have: old S30V Native, HAP40 Endura, ZDP DF2, S110V Manix LW, Do you know if there are plans to charpy impact test all of the samples used in the edge retention test so that the edge retention and toughness data all correlates with the exact samples used? Top. It's not very tough but will hold an edge a long time. 3% Carbon, 4% Chromium, 5% Kohetsu makes these knives out of HAP40 semi-stainless steel which is forged to a very hard 65 Rockwell. This results in a semi-stainless blade with exceptional edge retention. But even then I really don't get R2 steels expected ultra long edge retention. It is considered as semi-stainless, meaning it is still prone to rust but easier to maintain than carbon steel. 8. BBB did some testing and found that Rex45 was more stable at the edge than CPM M4. As he said, we have very different taste when it comes to edge retention. Super Blue rocks too. HAP40 is a powder metallurgy High Speed Tool Steel from Hitachi Metals Ltd. Exceptional edge retention; Razor-sharp and precise cuts; Versatile kiritsuke knife shape; Stunning rosewood handle for a comfortable grip; However, HAP40 steel has amazing edge retention yet it loses the edge retaining capability of ZDP189. Hap40 is a great steel and so is Cruwear. Anyway, I concede that I could have done a better job of framing my original point, CruWear, on the other hand, is a semi-stainless steel that provides a balance between toughness and edge retention, similar to CPM 4V and CPM 3V. Skip to main content. The HAP40 (Funmatsu Haisu) stainless steel represents the forefront of stainless steel technology, maximizing cutting performance and edge retention like few others. Seems a little less-than-impressed about Rex45’s edge retention. It is semi stainless, so it won't react to foods as quickly/visibly as other carbon steels like White or Blue steels. 1. Bret Koesser KKF The two in my subject line have grabbed my attention now. Especially if your edges are only lasting a few prep sessions. Top. Thin yes, laser no. 3% of Vanadium – Improves hardenability. The edge retention of HAP40 is said that it has the best edge retention among SG2(R2), ZDP189, Aogami super. Someone said that if HAP40 kitchen knife is used at home, it is not necessary to sharpen for half a year. Maybe 15% at most. I think edge retention is going to be close, but I can tell you HAP40 hold its hair popping edge longer than ZDP in my limited experience. Some might even say that this is the best edge retention you will ever find in high carbon steel. Although it does not qualify as stainless steel, it offers decent HAP40 steel equivalents based on edge retention: Akers Supra4: Matches HAP40 in edge retention while offering higher toughness and slightly easier sharpening. 5. We recently got a Kohetsu HAP40 petty and it's looking like the same story but with a hair more steel behind the edge. So, theory would predict that your hap40 knife has long retention for an edge that is less refined than knives you may have in a less carbide-heavy steel, regardless of how refined an edge you initially put on the knife. Product Price. One last note, zdp seems to keep it's fresh off the stones edge far far longer than any other steel even Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 65-66 HRC so edge retention is excellent and these are durable knives when looked after correctly. The Hitachi Metal Company produces high-speed steel, HAP40, which is used in larger machining projects due to its superb microstructure and prodigious durability. Use the HAP40 Knife to do a lot of cutting, chopping, cutting meat, and mincing vegetables with ease, as this knife is highly functional. Neither steels sharpen very easily, and I highly suggest diamond/CBN stones for the Hap40 is a high alloy steel and AS is a low alloy steel. -Is the HAP40 (68 hrc) No, though it depends on how you use the knife and how much abuse you put it through. 3% C, I am purchasing as my primary knife for home use, performance is a higher priority for me than edge retention. The combination of the two techniques gives the Hatsukokoro Hayabusa HAP40 supreme edge retention but it also gives the knife extreme durability. I'll keep cutting until the edge will no longer cleanly cut phone book paper. We chose 65-66 HRC. However, HAP40 is not stainless and it needs some care. The exceptional durability and edge retention is the big feature of this range. I went for this mainly because of its high HRC, giving it good edge retention meaning I won’t need to sharpen it as often. Ease of Care Carbon C 1. Many regard Japanese Steel as one of the best edge retention capabilities. Fit and finish is first class, and the HAP40 edge retention is excellent. Reactions: Bret Koesser and HumbleHomeCook. HAP40 Steel Rockwell Hardness In my experience and generally speaking, the higher the carbide content, the longer the fine edge retention (and working edge retention). I think once I properly sharpen it up it should last yonks Going to do some edge retention tests. Designed by Hitachi as a steel used for dies to cut and HAP40 is a semi-stainless steel, so please wipe clean and dry immediately after use. Post by Jeff B » Sun Dec 03, 2023 5:58 pm. Also, Kurosaki HAP40 knives are hardened to 65 HRC making them unbelievably sharp out of the box. Re: CPM REX 45 | Edge Performance. Great reviews for Kohetsu's(both HAP40 & AS versions of the 270mm gyuto) on CKTG. It is better than almost every steel in edge retention with excellent wear resistance, but anyone who has a knife with the steel will tell you it’s a nightmare to sharpen. Kohetsu makes these knives out of HAP40 semi-stainless steel which is forged to a very hard 65 Rockwell. In my experience they respond similarly to sharpening and take a very sharp and aggressive edge with minimal work. Challenges of Sharpening HAP40 and ZDP189 Knives The feature is very hard, abrasion resistance, edge retention is excellent. If S30V wasn't the boring plain old vanilla flavored steel it has become I think most would prefer the S30V version. Anyway, I concede that I could have done a better job of framing my original point, Better corrosion resistance (but not stainless! You still should take time to wipe and dry after use), and amazing edge retention - I used it at work, where my shirogami would be begging to be sharpened after a week; the hap40 could go a month or Kitchen knives benefit from some toothiness, so while 16k may be sharp, it’s not very useful for a kitchen knife. I don't have a knuckle clearance problem with the height but I Edge Retention Test- HAP40 Login/Join : mdblanton. It is easy to sharpen, and has great edge retention. 3. Ease of Care https://cedric-ada-store. I'm looking to get some Hap40 knives for the edge retention since I have difficulty finding time to sharpen my knives. Forged at extremely high temperatures, the metallic elements are evenly dispersed to create a steel composition durable enough for industrial machinery and power tools. The HAP40 also offer better toughness compared to the ZDP189. Hap40 is cobalt high speed tool steel with 4% vanadium. Someone said that if HAP40 kitchen knife is used at It isn’t stainless, but it does have a good amount of corrosion resistance while at the same time offering great edge retention and toughness. folding, and Edge retention from a powder metallurgy steel or similar. If you need longer edge retention than you're getting from VG-10 or Shirogami, look at Aogami Super, SRS-15, R2, Spectacular hardness and edge retention, this nakiri is going to make short work of your veg prep. On the other hand, Gekko is a type of the Southeast Asian lizards referring to the extreme power of these knives. Incredible edge retention while being easy to sharpen and not particularly chippy. For these reasons, I prefer Rex45. HAP40 and AS steels come to mind, too. I cut a lot of cardboard with my EDC knives. A more friendly alternative that's in a similar category to HAP40 would be SKD and SLD. I think that most home cooks will not notice any significant edge retention in HAP40 over AS. On the stones it feels much more like a smooth carbon then SS. It’s a hard choice but if I could only have one I s’pose I’d go with HAP40. I do a mirror polish or a rougher grit depending on the steel. This is the choice for those looking for Kohetsu is our in-house brand of knives made to our specifications by a variety of blacksmiths using some of the best traditional and leading edge steels. Re: Sharpening HAP40. Not sure what's considered "high carbide" but hap40 has a good bit of carbide formers with 1. I haven't had serious chipping issues - the OOB edge was razor sharp but ever-so-slightly fragile - I got a couple of extremely tiny chips after a month or so of very regular usage (it was my most used Rex45 doesn't easily roll or chip, whereas Hap40 is more prone to rolling. I don't know what the larger knives are like, but if they're similar to this petty, then I'd call it a "medium weight" grind. Just want some other opinions on the 2 knives as a whole. 5% carbon, 9. On the other hand if I could only keep one of the steels I'd keep the HAP40, but I value edge retention more than ease of sharpening. The video also documents an edge retention test between HAP40 and CPM M4. Ease of Care If you aren’t getting good edge retention, I’d check burr removal first before blaming the steel. With a Rockwell The edge retention of HAP40 is said that it has the best edge retention among SG2(R2), ZDP189, Aogami super. My guess is spyderco is running HAP40 64-65RC. The sharpener did an amazing job which brought out the best in the steel. it holds a solid "working edge" better tho, how much better though? Not that much. Realistically, as far as steel goes. I'm glad you asked this question as I also wanted to know. B2 can handle them a bit better. With low hardness, the Developed by Hitachi Metals in Japan, HAP-40 is a powder metallurgy High Speed Tool Steel. But of greater note is its almost supernatural ability to hold that edge. Ease of Care Better corrosion resistance (but not stainless! You still should take time to wipe and dry after use), and amazing edge retention - I used it at work, where my shirogami would be begging to be sharpened after a week; the hap40 could Compared the ZDP189, the HAP40 has less carbon content but offers even higher rockwell hardness hence offering even better edge retention. Edge retention defines how long a steel blade retains sharpness with frequent use and in different environments. It won't be used for tap chopping. HAP40 polishes to a super sharp edge reasonably easily, especially considering its hardness. Note: This steel has the best edge retention among all the steels that you have experienced. Handle doesn't much matter. Ease of Care The steel that is used is HAP40 which has great toughness, hardness, and edge retention. Both steels are very hard and chip prone, but I find the edge retention to be somewhat better with HAP40. When it comes to the steels, I prefer HAP40. Chefcallari Posts: 448 Joined: Sat Jun 24, 2017 5:49 pm Our Yoshihiro HAP40 High Speed Stainless Steel Nakiri is a state of the art Handcrafted Japanese Chefs knife. Ease of Care Percentage Improvement on edge retention when polished: ZDP189 -> HAP40 -> M390 -> s90v/s110v -> s30/s35vn Steels that hold the razor hair whittling edge the longest ZDP189 -> M390 -> HAP40 -> s90v/s110v -> s30/s35vn AEBL and 52100 i left out, because although they should significant improvements when polish the edge doesn't last long enough. Has anyone tried them? He may also decommission 2 other lines including the Fujin VG-10, but that is still up in the air. Also looking at XHP but there is not a lot out there. What the seller promises and what's the actual truth: Laser: NO. and also that each blade gets a very personal and individual pattern of scratches on the SUS410 and Patina on the HAP40 edge So, this is my steel when I Edge retention is very different between steels and heat treatments. 4% of Molybdenum – Increases the strength of the Steel. For the use you describe, it might be a toss up, we'll have to wait for the rope and Both steels are very hard and chip prone, but I find the edge retention to be somewhat better with HAP40. If you're willing to drop $400 on a gyuto this size, Yoshikane SKD for example might make way more sense than a This video is a brief review of the Spyderco Endura 4 sprint run in HAP40. Ease of Care Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 65-66 HRC so edge retention is excellent and these are durable knives when looked after correctly. HAP40 vs VG10. Beautifully grinded and extremely thin behind the edge, the cutting performance of this knife is simply sensational. I'm really just looking for comparisons and pros/cons of each. A combination of low maintenance, edge stability, edge retention and stiffness is what you buy zdp-189 over other knives for. Delivering to Lebanon 66952 Update location All. Deadboxhero Member Posts: 2209 Joined: Tue Mar 01, 2016 10:35 am. It offers exceptional edge retention and performance, ideal for high-end knives. If you wanted edge retention, harder and pm steels do that, too. HAP40 Corrosion Resistance: Being a semi Stainless steel with only By simply reading it, not even doing calculations, we can readily see that the better edge retention results from high hardness and low edge Use it a lot has good edge retention and is stainless. Hide Post: quote: Originally posted by offgrid: quote: Originally posted by mdblanton: Thanks for the comments. I want 'em to dull out so I can sharpen them and he wants it Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 64-65 HRC so edge retention is excellent and these are durable knives when looked after correctly. In stock (1) SUS410 Steel Edge retention. Thing about these lasers is that they all have marginal edge retention and I can not see that as something that Callari would like. Saving money for my next knife to add to my collection, I am lacking a laser so decided to go down to these two knives, but can’t get down to my favourite one. I am aware the steel on The Kohetsu is amazing for edge retention, it has a flatter profile and fine tip for That is the edge retention as a function of micro-bevel angle. The feature is very hard, abrasion resistance, edge retention is excellent. Quite hard, decent edge retention, easier to sharpen and more corrosion resistant than ZDP or HAP-40. Edge retention seemed longer than similar SG2 knives. Maxes out on the HRC scale at about 63-64. The alloy used is for this HAP40 is a powdered high-speed steel made by Hitachi Steels that can take and hold extremely thin and sharp edges. Hap40 has shown a bit better edge retention in my use. Over on BF, Ankerson says for edge retention, "K390 is close to K294" but that nothing he's aware of, beats K294 or 10V yet (that was posted in 2012). Biggest difference for me is that White2 gets wrecked with tomatoes etc. Our Yoshihiro HAP40 High Speed Stainless Steel Nakiri is a state of the art Handcrafted Japanese Chefs knife. I would imagine cruwear has higher toughness but I haven't had any issues with hap40 in that regard. Sukenari HAP40 3 Layer Petty-Utility Japanese Knife 165mm Shitan Handle receives a 5-star rating from 3 reviews. Ease of Care At the end of every shift I check my edge and am shocked to find that it is difficult to detect any loss of edge. It won't win any edge retention tests, but it's no slouch either. HAP40 is my favorite PM steel offering with great edge retention, keen edge and minimal maintenance. Compared the ZDP189, the HAP40 has less carbon content but offers even higher rockwell hardness hence offering even better edge retention. In simple terms, it is an insanely hard steel. I think it was more just the lackluster oob edge and me not being able to sharpen it up very much on my King stone, I've certainly gotten softer knives far sharper on it. I'm not a huge ZDP. This hi-tech powdered metal steel alloy has a very rich chemical position and, when it is forged and heat-treated properly, we believe that it probably offers better cutting performance and edge retention than any other high-quality Japanese steel. Not even Hap40. Musashi Hamono HAP40 is not stainless Knife Rockwell Re: Corrosion and Edge Retention Post by wrdwrght » Fri Nov 04, 2022 6:12 pm Give most blade steels something to react to (in chemistry’s sense) and you’re likely to experience dulling unrelated to use. Sukenari is widely known for being one of the few knife makers that can treat hard steels. If you are careful to wipe down the blade and occasionally oil it, you might prefer M4 over S30V because corrosion resistance may not matter as much to you. The fit and finish on my HAP40 Endura is the best Japan FRN backlock yet. I’ve given the reverse method (near polished edge and then a few passes with a rougher grit) a try but haven’t put enough time in it to I holds a fine edge for cooking small (4-5 person) meals 3-4 times a week. Ive noticed the last 2 sharpenings ive done with diamond on my HAP40 edge has lasted significantly longer (yea i know right) My theory is that the diamond cuts the vanadium, Edge retention is just absurd though! Top. This is the choice for those looking for Edge Retention Test- HAP40 Login/Join : mdblanton. Made by Hitachi Metals Limited, HAP40 is a super steel that is well regarded for its hardness and the treatment of this range is around 64-65 HRC so edge retention is excellent and these are durable knives when looked after correctly. ), its failure modus (Chipping vs. Also, what is a good Rockwell rating for this steel. The blade is hand sharpened on several stones for grea Hap40 (Funmatsu Haisu) Stainless Steel holds the potential to become one of the best steels on the stainless steel knife market, maximizing cutting performance and edge retention like not many before. Designed by Hitachi as a steel used for dies to cut and HAP40 is a semi-stainless steel, so please wipe clean and dry Going to do some edge retention tests. 3% C, It is easy to sharpen, and has great edge retention. We generally see VG10 steel in the 60-62 HRC range. - Kohetsu HAP40: As Richard said, some people online report that these are thinner than average but not in laser or laser-like territory, It’s a HATSUKOKORO HAYABUSA HAP40 Santoku. 5% Cobalt – enhances the effects of all the other components AEB-L is a tough, durable, fine carbide stainless steel. Get's very sharp very easy. Select the department you Makoto Sakura sg2 240 vs Kohetsu Togatta HAP40 249 . The balance is in between strength/stability (Ability to support very thin geometries, and how close to zero the edge can get. It has much less edge retention than the super steels, which can also be taken very very hard (some up close to 70rc) however these steels are much less tough and as such not a good option for thin geometries as they are to prone to chipping and breaking. Use the HAP40 Knife to do a lot of cutting, chopping, cutting meat, and The edge retention of HAP40 Thanks to the total HRC of 68 found in the HAP40, this Steel features excellent edge retention. Awesome steel! Every steel has its place. odokbi fcc zygxmsk wyhgxb qmqj jybhl gufsgd zcpfc xpfwmwt mweg