10Cr15CoMoV Steel: Is It Good? Hardness & VG-10 Compared

10Cr15CoMoV is a Chinese high-carbon stainless steel with roughly 1% carbon, 15% chromium and 1.5% cobalt, hardened to about 58-62 HRC. It is the closest widely available equivalent to Japanese VG-10, offering similar edge retention and better corrosion resistance than most kitchen steels.

If you have been reading knife spec sheets, you have probably met this one without being told anything useful about it. Here is what the name means, what the numbers do at the cutting board, how it actually compares to VG-10 and D2, and why it is the cutting core of our Damascus Dynasty and Silver Dynasty knives.

What 10Cr15CoMoV steel is

10Cr15CoMoV is a designation under the Chinese GB standard, and the name is the specification: it is a shorthand for the alloy's main ingredients and roughly how much of each is in there.

• 10 - about 1.0% carbon
• Cr15 - about 15% chromium
• Co - cobalt, around 1.5%
• Mo - molybdenum, around 1.2%
• V - vanadium, in small amounts

That puts it firmly in the high-carbon stainless category: enough carbon to take and hold a genuinely fine edge, and enough chromium to resist rust without the daily maintenance a true carbon steel demands.

What each element actually does

Alloy lists are only useful if you know what the ingredients are for. In this case:

• Carbon is what makes steel hardenable. At around 1.0% there is plenty of it to form the carbides that hold an edge, which is why this steel takes a keen edge and keeps it through real work.
• Chromium at 15% is the reason it counts as stainless. Above roughly 13%, chromium forms a passive oxide layer that stops the blade rusting in ordinary kitchen use. It is also why a knife in this steel will not develop the patina that a 1080 carbon blade does.
• Cobalt is the interesting one, and the reason this steel sits a tier above the cheap stainless it is often lumped in with. Cobalt improves how the steel responds to heat treatment, letting the maker push hardness higher without the blade turning brittle.
• Molybdenum adds wear resistance and helps the steel harden evenly through the blade rather than just at the surface.
• Vanadium refines the grain structure. Finer grain means a cleaner, more stable edge at a shallow angle - which matters a great deal on a thin Japanese-style blade.

Hardness: what 58-62 HRC means at the board

Most makers run 10Cr15CoMoV somewhere between 58 and 62 on the Rockwell C scale. Ours is heat treated to 60 +/- 2 HRC, which is deliberate rather than arbitrary.

Below about 56 HRC, a kitchen blade goes dull faster than you want and rolls at the edge. Above about 62, it holds an edge beautifully and chips if you look at it wrong. Sixty is the range where you get a long-lasting edge that still survives a home kitchen - a stray bone, a hard squash, an occasional knock against a plate.

If you want the full picture on hardness figures and how to read them, our Rockwell hardness scale guide covers it properly.

Is 10Cr15CoMoV the same as VG-10?

This is the question everyone asks, and the honest answer is: they are extremely close, and not identical.

VG-10 is made by Takefu in Japan. 10Cr15CoMoV is made in China. Their published compositions are near enough the same - both around 1% carbon, both around 15% chromium, both with cobalt, molybdenum and vanadium in similar proportions. Steel reference databases list 10Cr15CoMoV as the GB equivalent of VG-10, and in practice the two perform in the same band: comparable edge retention, comparable corrosion resistance, comparable ease of sharpening.

Where they can differ is consistency. A steel is only as good as the heat treatment applied to it, and quality control across Chinese mills varies more than it does at a single Japanese producer. A well-made 10Cr15CoMoV blade is genuinely the equal of a VG-10 one. A badly heat-treated one is not. That is a manufacturing question, not a metallurgy question - which is why the maker matters more than the mill.

How it compares to other kitchen steels

The short version: D2 holds an edge longer but will stain if you neglect it and is a genuine chore on a whetstone. 14C28N is nearly rustproof and sharpens in minutes, but you will be sharpening it more often. AUS-10, which we use as the core of our Feather Forge and Dynasty Series blades, sits in the same performance band with slightly less chromium. 7Cr17MoV, the steel in our Torii line, trades a little edge retention for being very forgiving to sharpen.

10Cr15CoMoV lands in the middle of all that, which is exactly why it is such a common choice for premium kitchen knives: no glaring weakness, and nothing about it that punishes a home cook.

Which knives use 10Cr15CoMoV

It is the cutting core of both our Dynasty Damascus lines. In the Damascus Dynasty 8" Chef Knife, a cobalt-enriched 10Cr15CoMoV core at 60 +/- 2 HRC sits inside 67 layers of black-forged Damascus, on a full tang black walnut handle. The Silver Dynasty 8" Chef Knife is the same core in mirror-polished Damascus with olive burl.

The same core runs through every shape in both lines - the 7" Nakiri for vegetables, the 8" Kiritsuke, the 7.5" Cleaver, the 9.5" Butcher Knife and the 5" Steak Knives. It is worth saying plainly that the 67 Damascus layers around the core are cladding: they are what you see, and they add toughness and food release, but the cutting is done by the 10Cr15CoMoV in the middle. Anyone selling you a layer count without naming the core is telling you about the wrapper, not the knife.

Sharpening and care

This steel sharpens well on a whetstone and takes a shallow Japanese-style angle without complaint. A 1000-grit stone to set the edge and a 3000-6000 to finish is all most people need; at 60 HRC it will take a little more work than a soft German blade and hold the result far longer. Our whetstone guide walks through the steps.

Care is straightforward because the chromium does most of the work for you. Hand wash and dry - never the dishwasher, which will damage the edge and the wooden handle long before it affects the steel. Store it where the edge is not knocking against other metal. That is genuinely it; unlike a carbon blade, it will not rust if you leave it on the board for ten minutes.

Every blade we make is hand sharpened and oiled before it ships, comes with a 99-day home trial, and is covered by a free lifetime guarantee. They are the sharpest blades you will ever use, or your money back.

Questions we get asked

Is 10Cr15CoMoV a good steel?
Yes, for kitchen knives it is a strong choice. It holds a fine edge, resists rust well, and sharpens without a fight. It is not a super-steel like MagnaCut or S90V, and it is not trying to be - for a knife you use every day and sharpen a few times a year, it is close to ideal.

What is 10Cr15CoMoV equivalent to?
Japanese VG-10. The compositions are near enough identical and steel reference databases list them as equivalents. Performance in the hand is very similar; what varies is the consistency of the heat treatment, which depends on the maker rather than the steel.

Will a 10Cr15CoMoV knife rust?
Not in normal use. At around 15% chromium it is properly stainless. Leave it wet in a sink for days, or in salt, and you can get spotting like any stainless steel - but it will not patina or rust the way a high carbon blade does.

Is it better than D2?
Different, not better. D2 holds an edge longer but is only semi-stainless, chips more readily and is hard work to sharpen. For a kitchen knife, 10Cr15CoMoV's combination of corrosion resistance and easy maintenance is usually the more practical choice.

Shop the range: Damascus Knives - including the full Damascus Dynasty and Silver Dynasty lines, every blade hand sharpened and oiled before it ships, with a 99-day home trial and a free lifetime guarantee.

Keep reading: AUS-10 Steel: Hardness, Edge Retention & vs VG-10 · 7Cr17MoV Steel: Hardness, Edge Retention and Is It Good? · Silver Dynasty vs Damascus Dynasty: Who Wins? · Types of Steel for Knives: The Complete 2026 Guide