VG-MAX: The Steel Only Shun Gets to Use

What VG-MAX is

VG-MAX is a high-carbon stainless cutlery steel produced by Takefu Special Steel, the Echizen mill behind VG-10, under an exclusive arrangement with Kai Corporation. Kai uses it in one place: the Shun brand, where it is the core steel of the two flagship lines, Classic and Premier. Shun introduced VG-MAX around 2013, transitioning those lines from the VG-10 they had used since launch.

Shun’s own published description is the closest thing to an official specification. In Kai’s words, VG-MAX builds on the VG-10 formula with:

• More carbon, for strength and edge durability.
• Additional chromium, for wear and corrosion resistance.
• Increased tungsten, claimed to refine the grain so the edge can be taken extremely fine.
• Vanadium, forming hard vanadium carbides for cutting performance.
• Molybdenum, supporting strength and corrosion resistance.

What can be stated with confidence, because both the published VG-10 datasheet and Kai’s own claims support it:

The tungsten addition is the most interesting line in that table. VG-10 has no specified tungsten; VG-MAX explicitly does. Everything else is a turn of an existing dial.

What VG-MAX feels like in the kitchen

Out-of-box edge

Excellent. Shun grinds Classic and Premier blades to a 16 degree per side edge, thinner than most Western knives ever see, and VG-MAX takes that geometry cleanly. A new Shun passes the paper test effortlessly and falls through tomato skin. How much of that is the steel and how much is the grind is a fair question; most of it is the grind.

Edge retention

Very good, in the same band as well-treated VG-10: months of home use with regular honing before a stone session is needed. Shun and zknives both place the working hardness around 60-61 HRC, which is exactly where good VG-10 lands. If the added carbide-formers do buy extra wear resistance, the margin is small enough that kitchen use does not reliably reveal it.

Toughness and the chipping question

Shun knives have a long-running internet reputation for edge chipping. The honest read: this is mostly geometry and user error, not a defect in VG-MAX. A 16 degree edge at 61 HRC will chip on chicken bones, frozen food, glass boards, and twist-cuts, whatever the alloy. VG-10 blades ground equally thin behave the same way. VG-MAX is not brittle by kitchen-steel standards; it is a hard, thin edge that assumes you will treat it like one.

Stainless behavior

Fully stainless in practice. With chromium at or above VG-10’s roughly 15%, VG-MAX shrugs off acidic food and normal wet handling. Hand-wash, towel-dry, done.

Against its parent

Our SG2 vs VG-10 reference makes the point directly: a Shun Classic in VG-MAX and a Tojiro DP in VG-10 land in nearly identical performance territory, at very different prices. The difference you feel between those two knives is grind, fit, finish, and brand, far more than alloy.

Where VG-MAX fits in the steel hierarchy

VG-MAX vs VG-10

On paper, VG-MAX should hold an edge slightly longer thanks to the added tungsten and extra vanadium, and be marginally harder to sharpen. In practice, with both steels at their typical 60-61 HRC and comparable geometry, the two are near-identical. Nobody who owns a VG-10 knife needs to upgrade to VG-MAX, and nobody buying a Shun is settling for less than VG-10. Think of VG-MAX as VG-10’s house blend: same vineyard, private label.

Why Kai wanted its own steel

By the early 2010s, VG-10 had become the default premium Japanese stainless, on everything from $70 Tojiros to $300 damascus showpieces. A flagship brand cannot easily charge flagship prices for the same alloy name printed on a knife costing a third as much. An exclusive derivative solves that: real metallurgical tweaks, a name nobody else can print, and no direct spec-sheet comparison possible. This is standard practice for large houses, and Kai executed it well. Understanding this does not make VG-MAX worse; it makes the price tag make sense.

When VG-MAX is the right steel

The honest framing: nobody chooses VG-MAX as a steel. You choose a Shun, and VG-MAX is what Shun Classic and Premier are made of. So the real question is when a Shun is the right knife.

A VG-MAX Shun makes sense if:

• You want a widely distributed, warrantied, premium Japanese knife you can see in person before buying.
• You value Shun’s fit and finish (pakkawood handles, damascus cladding, consistent grinds) and are happy paying for them.
• You want VG-10-class performance and the brand experience matters to you.

Look elsewhere if:

• You are buying for the steel alone: a VG-10 knife like the Tojiro DP delivers the same class of performance for far less.
• You want measurably longer edge life: step up to SG2/R2 powder steel instead (see SG2 vs VG-10).
• You cook rough (bones, frozen food, hard boards): a tougher, softer steel like AUS-8 will forgive you more.

Which knives actually carry VG-MAX

This list is short by definition. VG-MAX appears only on Shun, and only on some Shun lines. As documented in Shun’s own blade-steel materials:

If you see VG-MAX claimed on a non-Shun knife, treat it as a red flag: either mislabeled or counterfeit. The exclusivity is contractual and Kai enforces it. For the full picture of the company behind the brand, see our Shun brand page and the Kai Corporation company profile.

Takefu Special Steel: the mill behind the badge

VG-MAX comes from Takefu Special Steel in Echizen, Fukui Prefecture, the specialty mill whose V Gold series (VG-1, VG-2, VG-5, VG-10) defined premium Japanese stainless cutlery steel. Takefu sells VG-10 to anyone; VG-MAX it smelts for exactly one customer. For a mill, an exclusive alloy for a client of Kai’s volume is good business: Kai is one of Japan’s largest cutlery makers, and Shun alone moves more premium knives than most of the rest of the market combined.

In the genealogy on our Steel Family Tree, VG-MAX sits as a direct child of VG-10 on the Takefu stainless branch, a private fork of the most successful trunk in Japanese kitchen steel. It is worth repeating the point from our AUS-8 page: Takefu’s V Gold family and Aichi’s AUS family are separate lineages from separate mills. VG-MAX has exactly one parent, and it is VG-10. Our Japanese steel mills reference maps the full landscape, and the Steel Guide places every alloy we cover on one ladder.

Sharpening VG-MAX: treat it as VG-10

Angles

Match Shun’s factory 16 degrees per side, or take it to 15 if your technique is clean. Going more acute than that at 61 HRC invites the chipping the internet complains about.

Stones and grits

A 1000-grit synthetic waterstone does the main work; finish at 3000-6000. VG-MAX abrades a touch slower than AUS-8 but needs nothing exotic; standard aluminum-oxide stones cut it fine. Diamond plates are optional, not necessary.

Burr behavior

Like VG-10, VG-MAX is known for a somewhat stubborn, ductile burr that can flop side to side rather than shear off cleanly. Deburr patiently: progressively lighter alternating strokes, then a few featherweight edge-leading passes, then a strop. If a fresh edge dies within one cooking session, the burr survived; go back and finish the job.

Honing

A ceramic rod or fine steel weekly keeps the edge standing between stone sessions. Skip coarse grooved butcher steels on any 60+ HRC blade.

Myths and misconceptions about VG-MAX

“VG-MAX is a super steel far beyond VG-10”

No. Kai’s own positioning is an enhanced VG-10, and real-world behavior backs the word enhanced, not transformed. Edge retention, hardness, and corrosion resistance all land in VG-10’s band. The genuinely next-tier steels (SG2, ZDP-189, powder metallurgy generally) are a different technology, not a bigger dose of the same recipe.

“The composition is published, I saw the numbers online”

The numbers you saw trace to a single second-hand disclosure reported by the zknives database in 2020, attributed to a Kai representative. No official Kai or Takefu datasheet exists in public, and some of those figures sit awkwardly against how the steel actually performs. Circulated is not published.

“Shuns chip because VG-MAX is brittle”

Shuns chip because they are ground thin and hardened past 60 HRC, and are often bought by cooks migrating from soft German knives who keep German habits. Put VG-10, Ginsan, or SG2 in the same geometry and treat it the same way, and it chips too. The fix is technique and a decent board, not a different alloy.

“VG-MAX is just marketing”

Half true, and the half matters. The exclusivity and the name are marketing. The steel is real: a genuine Takefu melt with genuine composition changes, including tungsten that VG-10 does not specify. It is honest to say VG-MAX exists primarily so that Shun has a steel nobody can price-compare, and simultaneously true that it is a very good kitchen steel.

VG-MAX frequently asked questions

Is VG-MAX better than VG-10?

Marginally on paper, imperceptibly in the kitchen. Kai claims more carbon, chromium, tungsten, and vanadium than VG-10, which should buy slightly better edge retention. At the same hardness and grind, cooks cannot reliably tell them apart.

What HRC is VG-MAX?

Approximately 60-61 HRC in Shun production. The zknives database reports a target of 61 HRC plus or minus one point, which matches Shun’s published range.

Who makes VG-MAX?

Takefu Special Steel of Echizen, Fukui Prefecture, the mill behind VG-10, exclusively for Kai Corporation, Shun’s parent company.

What is the exact composition of VG-MAX?

Not officially published. Kai describes directional changes versus VG-10 (more carbon, chromium, tungsten, vanadium, plus molybdenum) without percentages. Unverified figures circulate online from a single second-hand 2020 disclosure. We report what is documented and flag the rest.

Which Shun knives use VG-MAX?

The Classic and Premier lines, per Shun’s own blade-steel documentation. Sora uses VG-10, Kanso uses AUS-10A, and Narukami uses Blue II carbon steel.

When did Shun switch from VG-10 to VG-MAX?

Around 2013, per the zknives steel database. Earlier Shun Classics are genuine VG-10; if you own an old one, you lost nothing in the trade.

Is VG-MAX stainless?

Yes, fully. Chromium at or above VG-10’s roughly 15% keeps it rust-free with basic hand-wash-and-dry care. It will not patina from acidic foods.

Can other brands buy VG-MAX?

No. It is exclusive to Kai by arrangement with Takefu. A non-Shun knife claiming VG-MAX is mislabeled at best.

Where to buy it, and what to buy instead

Sources behind this page

This reference draws on Shun Cutlery’s official blade-steel documentation and FAQ (Kai USA), Kai Corporation and Kai Shun regional materials, Takefu Special Steel’s published VG-10 datasheet (for the parent-steel baseline), the zknives knife steel database (VG-MAX entry, including the 2013 introduction date, the 61 HRC target, and the history of the second-hand 2020 composition disclosure), the Knife Steel Nerds body of work on Takefu stainless steels, and retailer product documentation from Cutlery and More. Where the exact VG-MAX composition is concerned, no official public datasheet exists, and this page says so rather than presenting unverified numbers as fact.

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