Best Steel for Knife Making: A Knifemaker's Guide

Short answer: for most knifemakers the best steel for knife making is N690, a Böhler cobalt-alloyed stainless run at 58-60 HRC that holds a good edge, resists corrosion very well and still sharpens on ordinary waterstones. Choose 1.4116 for a first knife, AEB-L for the finest kitchen edge, Sleipner for hard outdoor use, and Elmax, M390 or Vanax when you want a premium powder steel.

There is no single steel that wins every job. Every knife making steel is a set of trade-offs, and the right one depends on what the knife will do, who will sharpen it and with what. This guide walks through the properties that matter, gives each steel we stock a short section, and then matches steels to knife types. Where one of our existing guides already covers a topic in depth, we summarise it here and link out.

What matters when you choose a steel for knife making

Hardness

Hardness is measured on the Rockwell C scale (HRC). Knife blades live between roughly 54 and 65 HRC. Harder steel holds an edge longer, but it is also more brittle and harder to sharpen. Two points sound small and are not: the difference between 58 and 60 HRC is clearly noticeable both in edge retention and at the stone. Our guide to what HRC really means goes through the scale in detail.

Toughness

Toughness is the ability to take impact without chipping or breaking. A camp knife that will be batoned wants toughness, because chipping in the field is worse than dulling in the field. A kitchen knife on a wooden board is not pried with, so it can be run harder.

Edge retention

Edge retention is how long the blade keeps cutting before it needs the stone. It comes from hardness and from carbides, the hard particles in the steel that resist wear. Powder metallurgy steels lead here because their carbides are small and evenly spread.

Corrosion resistance

Stainless steels resist rust; tool steels such as Sleipner and D2 will patina and can spot if left wet. Stainless is not stain-proof either: acidic food left on a blade will mark it and salt water left to dry will pit it. For salt water and constant moisture, Vanax is the steel to look at.

Ease of sharpening

Harder steel needs sharpening less often and needs better equipment when it does. 1.4116 sharpens on almost any stone. N690 and AEB-L are fine on ordinary waterstones. Elmax, M390 and Vanax want diamond or good ceramic abrasives. Think about who will maintain the knife before you pick the steel.

Heat treatment

Heat treatment and geometry matter more than the name on the steel. A well-hardened, thinly ground 1.4116 outcuts a badly heat treated Elmax. We come back to this at the end, because it is the one property of a blade blank you cannot inspect.

The steels we stock, one by one

1.4116: 54-57 HRC, the forgiving first-build steel

German stainless, also sold as X50CrMoV15. It sharpens on almost any stone, resists corrosion very well and takes abuse without chipping. The softer edge rolls rather than chips, and a rolled edge comes back with a few passes on a strop. The trade is edge retention: it dulls sooner than N690 or the powder steels. Best for a first knife, a working kitchen knife touched up often, a camp knife, or any build where you would rather spend on handle material. 1.4116 blade blanks.

N690: 58-60 HRC, the all-rounder

Böhler's cobalt-alloyed stainless combines high chromium with cobalt and vanadium. It holds an edge notably longer than 1.4116, sharpens on ordinary waterstones and copes with kitchen use, wet weather and blood. Kitchen profiles are heat treated to 58-59 HRC for a more forgiving edge on the board; outdoor and EDC profiles go a touch higher. If you want one steel that does most things well, this is it. N690 blade blanks.

AEB-L: 60 HRC, the finest edge

Uddeholm's AEB-L started life as a razor blade steel. Its lean chemistry gives an exceptionally fine, even grain, so the edge can be taken thinner at the apex and it sharpens more easily than 60 HRC suggests. Corrosion resistance is good, a little behind N690. It dulls sooner than the powder steels in abrasive work, which is not the job a kitchen knife does. Best for thin kitchen knives. AEB-L blade blanks.

For a full side-by-side of these three stainless steels, read N690 vs AEB-L vs 1.4116, or browse all stainless steel blades.

Sleipner: 60-62 HRC, the hard-use tool steel

Uddeholm's improvement on D2: a chromium-molybdenum-vanadium tool steel with a finer, more even carbide structure, which gives better toughness and a cleaner edge at the same wear resistance. It holds an edge considerably longer than N690 and costs less than Elmax or M390. Kitchen profiles run 60-61 HRC, and selected models come with a stonewash finish. It is semi-stainless, so wipe it dry. Best for choppers, camp knives, large bushcraft blades and cleavers. Sleipner blade blanks.

D2 (K110): 60-61 HRC, long edge life at a moderate price

Böhler D2, sold as K110, in 3.85 mm stock. At around 12% chromium it sits just below stainless, which is why it is called semi-stainless. Its large chromium carbides give long edge retention but resist the stone, and it will not take quite as fine an apex as AEB-L. Best for hunting, camp and EDC knives that cut abrasive material and are sharpened occasionally. D2 blade blanks, or see all carbon and tool steel blades.

Elmax: 60-61 HRC, the balanced powder stainless

Uddeholm's powder metallurgy stainless delivers high edge retention and good corrosion resistance at the same time. It is easier to sharpen than M390 but still wants diamond or good ceramic. Heat treatment includes a cryogenic step. Best for a kitchen knife you want to sharpen rarely, a hunting knife or an EDC. Elmax blade blanks.

M390: 60-61 HRC, the longest edge life

Böhler's benchmark premium powder stainless, very high in chromium and vanadium. It has the longest edge life of any steel we sell and very good corrosion resistance. Its vanadium carbides are harder than a standard waterstone, so diamond or high quality ceramic is not optional. Heat treatment includes a cryogenic step. Best for a knife that has to keep cutting with minimal maintenance. M390 blade blanks.

Vanax: 60 HRC, the corrosion specialist

Uddeholm's nitrogen-alloyed powder steel. Nitrogen takes the place of much of the carbon, so the chromium stays free to resist corrosion, which makes Vanax the most corrosion resistant steel we sell, with excellent edge retention alongside. It sharpens much like Elmax. Heat treatment includes a cryogenic step. Best for salt water, fishing knives and kitchen knives in humid climates. Vanax blade blanks.

Vanadis 4 Extra: 63-64 HRC, the hardest blade we make

An Uddeholm powder tool steel, unusually tough for its hardness. It is not stainless and sharpening requires diamond abrasives and a steady hand. Best for an experienced sharpener who wants maximum performance and will wipe the blade dry.

Our guide to powder metallurgy steels explained covers why powder steel behaves differently and when the premium is worth it. All of them are on the powder metallurgy steel blades page.

Knife making steel comparison table

Which steel for which knife

Kitchen knives

A kitchen knife is used every day, cuts acidic food and spends time wet, so corrosion resistance and how thin an edge the steel will hold count for more than raw toughness. N690 is the safe default, AEB-L takes the keenest edge for a thin gyuto, santoku or petty, Elmax gives long intervals between sharpenings, Vanax handles salt and humidity, and Sleipner suits cleavers and bone choppers for cooks who dry their knives. The full reasoning is in choosing steel for a kitchen knife. Browse chef and kitchen blades.

Bushcraft, hunting and EDC knives

Outdoors the priorities invert: toughness first, then corrosion resistance, then edge retention, and ease of sharpening in the field matters more than in the kitchen. N690 is the outdoor default, Sleipner is the pick for chopping and batoning, Elmax and M390 suit hunting knives where the job is sustained slicing, and AEB-L suits small hunters and caping knives. For EDC, N690 is the sensible default, with M390 or Elmax if you want to sharpen rarely. Read best steel for bushcraft, hunting and EDC knives, then browse hunting and bushcraft knife blanks or EDC knife blanks.

Your first knife

Choose 1.4116. It is cheap enough that a mistake does not hurt and forgiving enough that the knife works anyway. If you want a step up that still sharpens easily, N690 at 58-60 HRC covers most needs and forgives most mistakes. Our guide to turning a blade blank into a finished knife walks through the whole build.

Premium builds

Go to the powder steels when the owner sharpens rarely, the knife will be used hard for long stretches, corrosion is a real risk, or the knife is meant to last decades. Elmax is the balanced choice, M390 the edge retention benchmark, Vanax the corrosion specialist and Vanadis 4 Extra the hardest. Powder steels move maintenance from "sharpen often, easily" to "sharpen rarely, with proper equipment".

Why heat treatment matters as much as the steel

Two blades of the same alloy can perform very differently depending on heat treatment: the temperatures, the quench rate, and whether retained austenite was dealt with. That is why we publish a hardness figure for every steel rather than a datasheet range.

Our blanks start as laser cut profiles in Böhler and Uddeholm steel bought directly from Voestalpine. After laser cutting, our blades are hand ground on belt grinders in our Istanbul workshop, each fixed to a jig made for its profile, so the bevel lands in the same place every time (a few full flat models are CNC ground). The ground blades then go back to Voestalpine, the mill that made the steel, for hardening in industrial vacuum furnaces.

• No oxidation. In a vacuum no scale forms and no carbon is lost, so there is no decarburised skin to grind away.
• Even temperature across the whole load. Every blade in a batch comes back at the hardness it was specified for.
• Controlled quenching. High pressure gas quenching at a rate specified for each alloy.
• Documented and repeatable. Every cycle is recorded, so this month's batch gets the same treatment as last year's.

Elmax, M390 and Vanax also receive a cryogenic step: after quenching they are cooled far below freezing before tempering to convert retained austenite, the soft, unstable phase that would otherwise degrade the edge over time. Our non-powder steels do not need it and do not get it.

All grinding, on ceramic belts at 40, 120 and 240 grit, is done before heat treatment. When the blades come back from Voestalpine they are only cleaned, sharpened and deburred: every blank ships sharpened unless the order note asks for no sharpening, and laser engraving of your name is free. The full story is in why we send blades back to the steel mill.

Where to start

If you are still unsure, start with N690. If you are building your first knife, start with 1.4116. Then browse knife blanks by steel or the full range of heat treated blade blanks, with the hardness printed on every product page. When the blade is chosen, pick your handle from our knife handle materials.