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How to Make a Japanese Knife Many people have a deep and entirely justifiable fascination with Japanese knives. Sharpness is part of the intrigue: learn more about the history of tameshigiri, if you want proof of the power of these blades. There's also a fascinating background of how Japanese knives are made. A certain part of the forging process can only be performed after dark so that the blacksmith can better judge what color the metal is glowing — you've got to admit that's unique. But aside from intrigue, people love the quality of these knives, thanks to how they're made. Here, we look at the process that Japanese knives are put through to obtain that incredible quality. Let's start with a breakdown of how they differ from Western knives. What's the Difference Between Japanese Knives and Western Knives? There are a few major differences between many Japanese knives and Western knives: Single bevel (Japanese) vs. double bevel (Western): the single bevel means that a blade is better suited to one hand than the other and can hold a sharper edge for more delicate cuts Harder, more brittle steel: Japanese knives tend to be made of harder steel. This is more brittle but holds an edge for longer if treated with respect. Single-piece vs. composite handle: Western knives tend to have a handle made of two pieces of wood riveted together around the tang. In Japan, the tang is traditionally knocked into a single block of wood. So, it's clear Western and Japanese knives are very different, but how are these blades made? There are numerous production modes, but we'll just look at two: the high-quality factory method and the mysterious, romantic hand-forged method. How to Make a Japanese Knife in the Factory Rest assured that this isn't your typical ‘factory-made’ knife. There may be a team of workers and machinery, but the care that goes into forging these knives is still exquisite. It starts, of course, with the metal. Step 1: Initial Shaping Blanks of metal are heated in a forge and then pounded out with a power hammer. The metal is then periodically quenched to give it strength. This process leads to the blades taking on their basic form and achieve uniform strength in all parts. At the end of the shaping, the blades are treated on a sanding belt. The shape of the blades is controlled and carefully monitored by expert craftspeople. As mentioned, this isn't your typical factory. Step 2: The Kiln The knives are put into a kiln and then cooled at a controlled pace a day after the initial shaping. The heating and cooling changes the metal's molecular structure to something approaching the desired result — but not quite. There's more work to be done on day 3. Step 3: The Finished Shape As the knives aren't yet at the final hardness, the final stage is to make some cold adjustments. This is an intensive, meticulous process done by hand. The knives are given their desired shape and then put through the kiln one more time, which gives them the perfect hardness. Step 4: Sharpening Sharpening a knife is a specialized job. The blades are sent to experts who sharpen the blades to an unbelievably fine grade. Even here, the temperature is key: the wheels that sharpen the blades are kept cool with water, as raising the metal to high temperatures would compromise its quality. The knives produced using this method are sharper and of better quality than what you'll find in many restaurants. Here's what you wanted, though: the handmade method. How to Make a Japanese Knife by Hand Step 1: The Furnace Masters in forging Japanese knives also start by heating metal in a furnace. So far, so familiar. Just like a great chef knows when a steak is perfectly medium-rare by touch, a master blacksmith knows when the metal is hot enough by its color, as well as other signals that the untrained eye just won't notice. The metal is shaped with an air hammer and the watchful eye of the blacksmith. Precision is the key to perfection here, and not a single blow is wasted. Step 2: Cold Forging ‘Cold forging’ means that the metal is, well, almost cold. This makes it far harder to work with than hot metal but yields far superior results. If you don't know what you're doing, it's easy to damage the metal by cold forging. The blacksmith cold forges the knife to make the metal stronger on a molecular level than if it was hot forged. This job is sometimes given to a master craftsman's apprentice, which can seem an odd term for someone who already understands metalworking better than most mortals. Step 3: Quenching The blade is heated and then quenched to bring it to a desired level of hardness. Such is the need for perfection that it's important to use the right fuel for the furnace. Coal, for example, contains a lot of impurities that make it unsuitable for this refined process. Think of your dad's bourbon-soaked hickory wood chips for his beloved barbecue, but on a whole different level. The blacksmith knows instinctively what color the metal's glow has to be. This is why quenching only takes place after dark. Step 4: Tempering The blade must then be tempered to achieve the final, desired hardness. This takes place in carefully controlled temperature conditions and is essential before the blade can be sent off for sharpening. Step 5: Creating a Legendary Edge A top-quality, hand-forged knife deserves no less than the best to put an edge on it. A master knife sharpener is known as a togishi. This person's job is to put an edge on the blade that matches the quality of its construction. A Labor of Love Japanese knives are works of art in their own right. The care and years of training that go into producing a quality knife are formidable, and this is true of specialized factories and hand-crafted knives. If you're interested in Japanese knives, something you might want to put on your bucket list is taking a tour of a workshop. Japanese knives also make wonderful gifts, as each one has a story behind it. Let your fascination take you further into this amazing world: ask any ‘apprentice.’ There's always more to learn!

The Kiritsuke is a traditional Japanese knife that dates back to before the Meiji era in Japan, or before 1868. Unlike other Japanese knives like the Gyuto and the Petty, the Kiritsuke pre-dates the influence of western cooking in Japan which means it’s designed for use in traditional Japanese cooking and the preparation of native Japanese ingredients. Let’s consider the design and history of the Kiritsuke knife with tips for using a Kiritsuke in a modern kitchen.   What is a Kiritsuke knife? The Kiritsuke is a Japanese knife that was traditionally used by the head chef of Japanese restaurants. The knife itself blends the properties of the Usaba and Yanagiba knives, which results in a versatile blade that’s suitable for preparing a wide range of traditional Japanese ingredients including vegetables and seafood. Contemporary Kiritsuke knives usually feature a double bevel, but traditionally these knives were only single-bevelled.Kiritsuke knives boast a flatter heel than Gyuto knives and the tip of the knife has a sharper angle which makes it more suitable for precise, intricate tasks. Like both the Japanese Bunka knife and the Usaba knife, the Kiritsuke has a ‘reverse tanto’ shape, which means a prominent pointed tip and a spine that slopes downwards towards the end of the knife.   The history of the Kiritsuke The term ‘Kiritsuke’ literally translates to ‘slit open’, and the knife was originally created in Japan - though it’s such a traditional knife that it’s not known exactly how or when the knife was first used. The Kiristuke is a highly respected kitchen tool in Japanese kitchens, which is why many kitchens only permit the head chef to use this knife.The original design of the knife combined the features of two of the most popular types of Japanese cooking knives at the time: the straight edge of the Usaba knife, which was used for slicing fish, and the long blade of the Yanagiba which was used for preparing vegetables.   Tips for using a Kiritsuke When you purchase a Kiritsuke, look for a blade that fits in well with your existing knife collection. For example, choose a Kiritsuke with a longer blade than your Gyuto or a flatter edge. This is an excellent knife for push-and-pull chopping because the larger heel of the knife gives plenty of clearance for your fingers underneath. If you want a Kiritsuke knife that’s suitable for a wider range of tasks, look for one with double bevelling.   Buy your Kiritsuke knife today As one of the most prestigious knives in any Japanese kitchen, owning a Kiritsuke knife of your own is an honour. Whether you prepare traditional Japanese dishes such as sushi or want a sleek and multi-purpose knife for finely slicing fish and vegetables, the Kiritsuke is an excellent addition to modern kitchens. Browse our range of authentic Japanese Kiritsuke knives online today to find the perfect Kiritsuke for your kitchen.

Whether you’re a home cook, amateur chef or a professional, we all need a good set of knives in the kitchen. For many chefs it’s what defines them, and a Japanese chef knife arguably is as good as it gets. Working with the right blade will ensure superior precision and maintain the integrity of the ingredients you’re working with. Japanese chef knives are becoming increasingly popular with Western chefs, and it’s not surprising given their rich history and reputation for quality, sharpness and overall precision craftsmanship. At Chefs Edge we specialise in high performance Japanese kitchen knives crafted by some of Japan’s most talented blacksmiths. We only pursue kitchen knives of the highest quality and the finest craftsmanship, and provide them to you at the best possible price, while striving to deliver the best customer service possible. If you’re considering Japanese chef knives for your kitchen, it’s important to first understand the different kinds, to help you decide what’s right for you. The types of kitchen knives you need will ultimately depend on your level and style of cooking, and the techniques you’ll demand from your knife. Gyuto If you’ve never owned a Japanese kitchen knife before, the Gyuto meaning ‘beef knife’ is the most versatile choice to start your collection and obsession! One of the most commonly used knives in the kitchen, the Gyuto can cover a majority of kitchen tasks. It’s similar to a classic Western style chef’s knife, except that it’s typically lighter and thinner. The Gytuo is typically anywhere between 18cm-27cm in length, depending on the required task. It has a long curve from heel to point and is ideal for rocking-cuts and precision work like mincing, fine preparation of vegetables and slicing meat. Shop our range of Gyuto’s here Santoku If you’re looking for another good all-rounder, a Santoku knife is your next best choice after the Gyuto. This smaller multipurpose knife has a flatter blade profile that the Gyuto, and is great for dicing and chopping vegetables, fish and meat. The broader blade also helps to scoop ingredients off the board with ease. The Santoku can range from 13cm to 18cm in length, and has a slightly flatter cutting edge than the Gyuto. Shop our range of Santoku’s here Bunka A versatile blend of the Santoku, Gyuto, and Nakiri, the Bunka is a smaller and thinner than the Gyuto and Santoku, with a much higher taller blade, and a ‘K-tip’ which allows more specialised cutting tasks. This general purpose knife is also ideal for push cutting and chopping vegetables, and can handle delicate work like trimming and paring with ease. (Plus, they look absolutely fantastic, our favourite blade shape by far!) Shop our range of Bunka’s here Deba For Western Chef’s the Deba is the ultimate butcher’s knife alongside the trusty meat cleaver. Although the Deba is traditionally known for its uses in filleting fish, its structure merits its use for cutting through joints of meat and poultry. You’ll notice that an authentic Japanese Deba will have a single bevel edge, while the Western version has a double bevel edge, which is why it’s also ideal in meat preparation. The Deba has a thick spine, and is usually heavier than it’s Gyuto/Santoku counterparts. This extra weight helps make light work of more heavy duty cutting tasks. Nakiri As its meaning suggests, the Nakiri knife is a vegetable knife. Crafted with a straight double edged blade and no tip, it’s perfect for chopping and dicing. You’ll find this knife to be everyone’s ‘go to’ in most Japanese homes. The flatter blade profile allows more of the cutting edge to be in contact with the board. Shop our range of Nakiri’s here Petty The Japanese version of a French petit knife, the Petty knife is the quintessential paring and utility knife. It’s nimble and perfect for small handheld tasks that the Gyuto or Santoku is too large for, such as peeling and cutting small fruit, vegetables and herbs. The small length of the blade makes sharpening a breeze compared to other types of knives. Shop our range of Petty’s here Yanagiba The original sushi knife! Traditionally used to cut sashimi, but these days can also be used to cut meat. This is a long, thin blade up to ~37cm in length, and is a single bevel, chisel ground edge. This ensures the meat falls off to one side and repeated cuts can be made to large pieces of meat in quick succession with excellent repeatability. Other types of Japanese kitchen knives Chukabocho – the Japanese version of a cleaver, it is large and rectangular in shape and great for preparing large veggies such as cabbage. The thin blade also means it can handle delicate tasks like trimming and mincing herbs. This cleaver is not designed to be used as a meat cleaver. Pankiri – a serrated bread knife, only used for slicing bread and baked goods. Usuba – a vegetable knife with a Kataba blade. This knife is a little more difficult to use than a Nakiri, but its shape and sharpness ensures a clean and crisp cut every time. Whether it’s slicing and dicing, chopping or carving, you’ll find the perfect workhorse in the kitchen with a Japanese kitchen knife. If you need help deciding on what knife will best suit your needs, get in touch with the team at Chefs Edge. Once you’ve got your hands on a Japanese kitchen knife you’ll never look back!

In the realm of culinary arts, Japanese knives hold a prestigious status, revered not only for their functionality but also for the centuries-old traditions embedded in their craftsmanship. This 600-word blog post delves into the allure of Japanese knives, exploring the reasons behind their global acclaim and how they continue to shape culinary excellence. The Essence of Japanese Knife Craftsmanship: Japanese knife-making is an art form passed down through generations, a testament to Japan's rich cultural heritage. Renowned for their razor-sharp edges and impeccable balance, these knives are crafted by skilled artisans who dedicate their lives to perfecting each blade. The process begins with selecting the finest steel, which is then meticulously forged, shaped, and sharpened to create a tool that is as beautiful as it is functional. Types of Japanese Knives: Gyuto (Chef's Knife): The all-purpose kitchen warrior, perfect for slicing, dicing, and mincing. Santoku (Three Virtues Knife): Known for its versatility in cutting meat, fish, and vegetables. Nakiri (Vegetable Knife): Designed specifically for chopping and slicing vegetables. Yanagiba (Slicing Knife): Ideal for slicing sashimi and sushi, offering precision and grace. Each type of Japanese knife serves a distinct purpose, designed to enhance the culinary experience and cater to specific tasks with utmost precision. Material Mastery: Japanese knives are famous for their use of high-quality steel, such as VG10, Blue Steel, and White Steel. These materials are carefully selected for their purity, hardness, and ability to retain an edge. The incorporation of elements like carbon, chromium, and vanadium adds to the blade's strength, sharpness, and resistance to corrosion. Sharpening and Maintenance: The sharpness of a Japanese knife is its soul. Sharpening these knives is a skill in itself, often done using a whetstone to preserve the blade's integrity. Regular maintenance, including proper cleaning, drying, and storage, ensures that a Japanese knife remains a lifetime companion in the kitchen. Aesthetic and Functional Harmony: Japanese knives are not only tools but also works of art. The aesthetics, from the elegantly shaped blades to the exquisite patterns known as 'Damascus' patterns, reflect the meticulous attention to detail in every aspect of their creation. The harmony between form and function is a hallmark of Japanese craftsmanship, making these knives a cherished item in kitchens and a preferred choice for chefs around the world. The Cultural Significance: Beyond their culinary uses, Japanese knives represent a culture that reveres perfection and harmony. The discipline and dedication in knife-making echo the broader Japanese philosophy of 'shokunin,' the pursuit of excellence in one's craft. Owning and using a Japanese knife is not just about preparing food; it's about embracing a piece of this rich cultural heritage. Conclusion: Japanese knives stand at the intersection of art, tradition, and culinary excellence. They are more than mere tools; they are the embodiment of centuries of craftsmanship, innovation, and cultural values. Whether you are a professional chef or a culinary enthusiast, investing in a Japanese knife means investing in a piece of art that will elevate your cooking experience, bringing precision, beauty, and tradition to every dish you create.

Japanese knives are some of the most sought-after in the world. They have a reputation for being razor-sharp, exceptionally high-quality, and made from extremely durable materials. These knives can be used for a wide range of cutting tasks and will last for years if properly cared for. In this article, we look at the reasons why Japanese knives are so sought after along with why they are chosen from knives from other regions. Why are Japanese knives so sought after? Japanese knives are so sought after because of the quality of their components and the fact they're designed to be used in a way that's unfamiliar to most people. Most Westerners are accustomed to using knives as cutting tools, but Japanese chefs think of their knives as extensions of their hands. They use the knives the same way they would use their fingers, so they can cut and slice with more finesse and precision than is possible with any other knife. Japanese knives allow this precision and finesse by being forged in traditional methods using the highest quality steels available, and then finished  You won't find these types of high-tech alloyed steels being used in store-bought off-the-shelf knives.  Some other reasons include: Black finish The Japanese knife has long been considered one of the most sought-after knives in the world, and for good reason: they have a reputation for being extremely sharp, durable and well-balanced. But what makes these knives so special? The answer is simple: it's all about the finish. Japanese knives are traditionally finished with a blacksmith’s finish, or kuro-uchi (pronounced "ku-ro-oo-chee). This finish gives them their traditional look with rustic charm while also reducing the risk of corrosion and preventing food from sticking to your knife. Hammered prints Another unique feature that also makes Japanese knives so desirable is the hammered print usually on the top part of the blade. This mark is created by hammering the blade while it's being forged. The dimples and marks on the top part of the blade create friction when cutting, preventing food from sticking to it. This reduces the amount of force required to cut through food, making it easier on your hands and wrists. They also lend a certain aesthetic to the knife depending on which style of hammer finish the blacksmith prefers.  Mirror finish Another reason why Japanese knives are so popular is the mirror finish feature. They are known for their high-quality mirror finish, minimalist look, and thin surface that has been polished and sharpened. The softer part of the knife is thinned and polished until it reflects light like a mirror. The silver hairline finish marking the separation between the softer and harder core steel is what sets Japanese knives apart from other types of blades. Damascus finish The most notable feature of Japanese knives is their Damascus steel, which has been used for hundreds of years and has a unique patterning that results from the artisanal process of folding together layers of steel. Damascus steel is usually only for aesthetic, as you are not doing the cutting with the patterned section of the blade, but rather the cutting edge. The different styles of damascus are almost endless and are an artistic expression of the blacksmith. Matte finish A distinct matte (or Nashiji) finish is another reason why these knives are so sought after. The pear skin pattern on the blade gives it a gentle texture that's dappled and coarse. This prevents food from sticking to the blade and makes for smoother cuts.  Clear transition between hard and soft steel The blades of these knives feature a steel core that transitions into softer steel at the blade's edge. This technique creates a mist, cloud or haze that contrasts the soft steel with the fine polished edge. This technique of using 3 layers  of steel for a knife is called San-Mai, and lends the knife extra strength and flexibility, which can prevent breakages under stress.

Japanese knives are one of the most popular kinds of knives for home chefs. They're high-quality, and they have a reputation for being extremely sharp and durable. If you're lucky enough to own a set of Japanese knives, you'll want to make sure that they stay in good condition so that they'll last you for years to come. That's where proper knife storage comes into play. In this blog, we'll discuss how to store your new Japanese knives in a way that will protect them from damage and make it easy for you to find them when you need them.   Storing your Japanese kitchen knives safely When you get a brand new Japanese knife, you may be wondering about the best and safest way to store it. Here are a few options: Wall magnets Wall magnet: the best way to show off your collection. If you're a knife enthusiast, you know how important it is to keep your knives in good condition. You want them to look as good as they feel. One of the best ways to do that is with magnetic wall strips. They're easy to use and allow you to show off your collection in a way that's both decorative and practical, while minimizing use of precious bench space. Magnetic wall strips are also great because they allow easy access and don't risk scratching your knives. Super strong magnets also help them to stay put with no risk of any accidents in the kitchen. Avoid stainless steel magnetic strips as these can scratch your knives.  Knife blocks If you're looking for a way to store your new Japanese knives, knife blocks are one of the most popular options. They're easy to use and make it simple to access your knife collection from your benchtop. You can find knife blocks in a variety of styles, colours, and materials. Multi-knife blocks are also a good idea as they hold more than one blade at a time, so you could keep a collection together. These can be great for people who want to keep their knives close at hand while cooking and preparing food. Display stands There are many ways to display your knives, but one of the best is with a display stand. They are not the most practical way to store your knives, however, they are a great way to show off your collection and they can be used to display your most used knives. Display stands are great for dinner parties as they can be used to wow guests with your collection. A good tip is to use a display stand if you have a small number of knives or as an alternative to storing them in a knife block. Knife rolls Knife rolls are a great way to keep your knives safe and secure, especially if you're the kind of person who likes to move around a lot. They're also good for keeping them hidden away since most knife rolls have compartments specifically designed for each knife. The best part about knife rolls is that they're compatible with all kinds of knives and can keep any knife safe and secure. Plus, they come in all sorts of colours so that you can pick out one that matches your style and your kitchen. Blade guard A blade guard protects the knife while it's stored, but it can also be very helpful in preventing damage to other utensils in your kitchen drawer. A blade guard also helps to prevent damage to other utensils by keeping them separate from your knife. These are fine for stainless knives, but only a short term solution for carbon knives, as the felt inside a blade guard can draw in moisture over prolonged periods of storage and risk rusting your knife.

Melbourne, a city celebrated for its vibrant food scene and culinary diversity, is witnessing a revolution in kitchens across the city, thanks to the superior craftsmanship of Japanese knives available at Chef's Edge. For both professional chefs and home cooking enthusiasts, Chef's Edge offers an unrivaled selection of Japanese knives that promise to transform your culinary creations. This blog post dives into why Chef's Edge is your ultimate destination for Japanese knives in Melbourne. Why Choose Japanese Knives from Chef's Edge? Chef's Edge prides itself on providing Melbourne's cooks with Japanese knives known for their exceptional sharpness, balance, and durability. Each knife in our collection is a testament to the centuries-old tradition of Japanese craftsmanship, offering unparalleled precision in every cut. By selecting Chef's Edge, you're not just purchasing a knife; you're investing in a piece of culinary heritage designed to elevate your cooking to new heights. Finding Your Ideal Knife Our collection caters to every culinary need: Gyuto: The chef's choice for versatility and precision. Santoku: Perfect for those who value finesse in slicing, dicing, and mincing. Nakiri: The ultimate tool for effortless vegetable preparation. Let your culinary style guide you to the perfect Japanese knife. Whether you're beginning your cooking journey or seeking to enhance your kitchen arsenal, Chef's Edge has the perfect match for you. Ensuring Your Knife's Longevity To maximize the lifespan of your Japanese knife, we recommend: Sharpening with a whetstone to preserve the blade's sharpness. Hand washing and immediate drying to maintain its condition. Storing in a dry environment to prevent damage. Why Chef's Edge Stands Out in Melbourne Chef's Edge isn't just a website; it's a cornerstone of Melbourne's culinary community. We don't just sell knives; we provide an enriching shopping experience. With our carefully selected range, you can find a knife that not only meets your needs but also feels uniquely yours. We are available around the clock to to give expert advice to ensure you have the support you need to make the most of your Japanese knife. Elevate Your Culinary Experience with Chef's Edge If you're ready to revolutionize the way you cook, visit www.chefs-edge.com.au and explore our collection online. Discover why our Japanese knives are favored by those who appreciate the perfect blend of tradition, quality, and performance. Join the ranks of Melbourne's culinary aficionados and turn every meal into a work of art with Chef's Edge.

It’s the business end of the chef knife, the part that does the real work. The core steel of your knife, or the cutting edge, is one of the most important aspects in determining how your knife performs. The grind, balance, weight and size of a knife are also important, but often the debate rages on what the best core steel is to use for a knife.  Is ZDP-189 worth the cost? Is VG-10 any good? Carbon vs Stainless? Each steel, like each knife type, has its own advantages and disadvantages, but a good knife steel is the foundation from which the rest of the knife is constructed. Generally speaking, you’ll find a Japanese blacksmith will prefer to use a steel type that belongs to one of 3 groups: Traditional High-Carbon Steels (Non Stainless), like Aogami or Shirogami Stainless Steels (VG10, AUS10) Powder Steels (ZDP-189, SG2/R2, Cowry X) We’ll cover the steels in each of these 3 groups and what makes them different from your regular off the shelves. Carbon Steel Japanese blacksmiths prefer to use these traditional knife making steels that lack the stainless elements of their counterparts. Easy to forge to high hardness with good edge retention and excellent sharpness, they are the closest steels to ‘Tamahagane’, the steel ancient samurais used for their swords.  They are, as their name suggests, very high in Carbon (C) content, the element which gives steel its ability to be hardened during the heat treatment process. As steel is hardened it becomes more brittle, a trade-off for it’s long lasting sharpness. Shirogami/White Paper Steel White Steel is known for 2 things: steel purity, and incredible, surgical sharpness.  It has very little added elements, except for trace amounts of Sulfur and Phosphorous. It will rust and patina quite easily, so be sure to wipe down immediately after use, and beware when using a Shirogami knife on things like onions or potatoes, as it can leave orange or brown marks on food. White Steel 1 High hardness, up to 65 HRC. Carbon: 1.25-1.35% Manganese 0.20 – 0.30 % Phosphorus 0.03 % Sulphur 0.004 % Silicon 0.10 – 0.20 % White Steel 2 Moderate hardness, up to 61 HRC. Carbon 1 – 1.15 % Manganese 0.20 – 0.30% Phosphorus 0.03 % Sulphur 0.004% Silicon 0.10 – 0.20 %   Aogami/Blue Paper Steel Probably the most commonly used carbon steel in Japanese chef knives, Aogami or “Blue” paper steel gets its name from the blue paper that Hitachi Metals supplies the steel in. It comes in 3 variants, Blue 1, Blue 2, and Blue Super, who’s incremental carbon increases result in Blue Super being one of the highest hardness knife steels available when quenched and treated well. It is a reactive carbon steel, essentially white steel with added chromium, carbon, and tungsten. This results in a knife that does not rust or patina quite as easily as White Steel, and holds an edge for longer. Blue Steel 1 High hardness, up to 65 HRC. Carbon: 1.25-1.35% Chromium: 0.20-0.50% Manganese 0.20 – 0.30 % Phosphorus 0.03 % Sulphur 0.004 % Silicon 0.10 – 0.20 % Blue Steel 2 Moderate/High Hardness, up to 63 HRC Carbon 1.05 – 1.15 % Chromium 0.20 – 0.50 % Manganese 0.20 – 0.30 % Phosphorus 0.03 %  Sulphur 0.004 % Silicon 0.10 – 0.20 % Tungsten 1.00 – 1.58 % Blue Super High Hardness, up to 65HRC Carbon: 1.40 – 1.50 % Chromium 0.30 – 0.50 % Manganese 0.20 – 0.30 % Molybdenum 0.30 – 0.52 % Phosphorus 0.03 % Sulphur 0.004 % Silicon 0.10-0.20 % Tungsten 2.00 – 2.50 % Vanadium 0.30 – 0.50 % Stainless Steels Often not quite as high in carbon content, stainless steels have added chromium which acts as a protecting element to oxidizing agents such as acidic foods and water. Generally speaking, when a steel has 12% or above in Chromium content, it is regarded as a stainless steel. They can be hardened to about HRC 60, and as such a sharp edge will not last quite as long as their carbon steel counterparts. The main stainless steels used by Japanese blacksmiths are VG-10 and AUS10, and Ginsan. For their versatile nature and minimal maintenance, stainless steels are very common across many knives manufactured throughout the world. VG10 Moderate/Low Hardness, up to 60-61 HRC Carbon: 0.95 – 1.15 % Chromium: 14.50 – 15.5 % Cobalt: 1.30 – 1.50 % Manganese: 0.50 % Molybdenum: 0.90 – 1.20 % Phosphorus: 0.03 % Vanadium: 0.10-0.3 % AUS10 Moderate/Low Hardness, up to 60HRC Carbon: 0.95 – 1.10% Chromium: 13.00 – 14.50% Molybdenum: 0.10 – 0.31% Vanadium: 0.10 – 0.27% Nickel: 0.49% Manganese: 0.50% Silicon: 1.00% Phosphorous: 0.04% Sulfur: 0.03% Ginsan Moderate/High Hardness, up to 63 HRC Carbon: 0.92 – 1.10 % Chromium 13.00 – 14.5 % Manganese (Mn) 0.60 – 1.00 % Phosphorus (P) 0.03 % Sulphur (S) 0.02 %  Silicon (Si) 0.35 % Powder Stainless Steels This is where the real fun begins! Powder steels are exotic modern alloys that combine the high hardness, high strength properties of carbon steels, with added stainless properties, resulting in superior performance in every way. Whilst being slightly harder to sharpen and maintain, a cutting edge made from Powder Stainless steel will hold an edge much longer than most other knife steels. The most common powder steels in japanese knife making are SG2/R2 (Super Gold 2/R2), ZDP189 and HAP40, with ZDP-189 bursting onto the scene in the last decade as being the go-to powder steel of choice for high end chef knives. You’ll find that a knife with a Powder steel core is more expensive than most others, and for good reason! The steels are expensive and extremely hard to procure, and even then, in the hands of an amateur blacksmith, they are useless. It takes an extremely skilled craftsman to forge and laminate these steels together, resulting in longer build times and requiring nothing short of perfection in the manufacturing process. SG2/R2 High Hardness, up to 64 HRC Carbon: 1.25-1.45% Chromium: 14.00 – 16.00 % Molybdenum: 2.30 – 3.30% Vanadium: 1.80 – 2.20 % Manganese: 0.40% Silicon: 0.50% Phosphorous: 0.30%  Sulfur: 0.30% ZDP189 Extremely High Hardness, up to 67 HRC Carbon: 3.00% Chromium: 20.00% Molybdenum: 1.40% Tungsten: 0.60% Vanadium: 0.10% Manganese: 0.50% Silicon: 0.40% HAP40 Extremely High Hardness, up to 68 HRC Carbon: 1.27 – 1.37% Chromium: 3.70% – 4.70% Molybdenum: 4.60 – 5.40% Tungsten: 5.60 – 6.50% Vanadium: 2.80 – 3.30% Cobalt: 7.50 – 8.50% Final Thoughts There you have it. Some information on the most common seen steel types in not only Japanes knives but knives around the world. Be sure to choose a steel that matches your lifestyle and ability to maintain!