October 2026 · Sourcing guide
Ask any knife buyer what drives cost and quality in a kitchen knife, and the answer starts with the steel. Yet most buyers choose steel grades the way they choose paint colors — by name recognition rather than by what the grade actually does. The four grades below cover nearly every stainless kitchen knife coming out of China today, from budget sets to premium lines. Here is what each one means for your product and your price.
Chinese stainless knife steels follow a simple naming pattern: the first number is the approximate carbon content in tenths of a percent, "Cr" is followed by the approximate chromium percentage, and trailing letters indicate added elements — Mo for molybdenum, V for vanadium.
So "8Cr13MoV" reads as: roughly 0.8% carbon, 13% chromium, with molybdenum and vanadium additions. With that decoder in hand, the four grades fall into a clear ladder.
With around 0.3% carbon and 13% chromium, 3Cr13 is the entry-level stainless in this group. It hardens to roughly the low-50s HRC, which means it sharpens very easily — and dulls quickly.
Where it fits: promotional sets, starter kits, and price-driven retail programs where the knife is part of a bundle rather than the hero product. It is corrosion-resistant enough for normal kitchen use and forgiving to manufacture, which keeps costs down.
What to watch: edge retention is its weakness. If your brand promises a "razor-sharp" experience, 3Cr13 will not hold that promise for long. It also dents and rolls more easily than harder steels, so it suits buyers who prioritize price and replaceability over performance.
Around 0.5% carbon with 15% chromium plus molybdenum and vanadium, 5Cr15MoV is the most common steel in mid-priced knife sets — and for good reason. It typically reaches the mid-to-high 50s HRC, offering a genuine balance: noticeably better edge retention than 3Cr13, still reasonably easy to sharpen, and good corrosion resistance from the higher chromium.
Where it fits: the broad middle of the market — department-store sets, e-commerce bestsellers, and private label lines where the knife needs to feel like a real tool without carrying a premium price.
What to watch: it is a "good at everything, exceptional at nothing" steel. In a crowded mid-range market, differentiation has to come from design, handle quality, and packaging rather than from the steel story alone.
With around 0.8% carbon, 8Cr13MoV is a meaningful step up. Properly heat-treated, it reaches the high 50s HRC and holds an edge substantially longer than 5Cr15MoV, while the molybdenum and vanadium keep it tough enough for daily kitchen abuse.
Where it fits: enthusiast-oriented lines, gift sets, and brands that want to talk about performance in their marketing. It is the grade most often chosen when a buyer wants "better than the average set" without paying Japanese-steel prices.
What to watch: the words "properly heat-treated" do heavy lifting here. 8Cr13MoV punishes sloppy heat treatment more than softer grades do — an overheated or under-tempered 8Cr13MoV blade can be brittle or soft, performing worse than a well-treated 5Cr15MoV. Always ask for hardness test records, not just the grade name on the spec sheet.
VG10 is a Japanese high-carbon stainless (around 1% carbon) alloyed with cobalt, molybdenum, and vanadium. It typically reaches around 60 HRC and is known for outstanding edge retention — the reason it appears in premium chef knives worldwide. It is often laminated between softer stainless layers, which adds to the cost and the visual appeal of the blade.
Where it fits: premium and professional lines where the steel itself is part of the selling story, and where the retail price can absorb significantly higher material and processing costs.
What to watch: cost, and honesty about sourcing. Genuine VG10 comes from Japan; if a quote for "VG10" looks too cheap, ask for material certification. Also note that harder steels demand more skill from the end user — they hold an edge longer but need proper sharpening tools when they finally dull.
Two knives in the same steel grade can perform like different products. Heat treatment — the controlled heating, quenching, and tempering cycle — determines the final hardness, grain structure, and toughness. A well-treated 5Cr15MoV blade will outperform a poorly treated 8Cr13MoV blade every time.
This is the single most useful thing a buyer can verify:
A practical way to choose:
Also consider your customer's sharpening habits. Markets where home sharpening is rare favor steels that stay sharp longer (8Cr13MoV, VG10). Markets where pull-through sharpeners are common tolerate softer steels that are easy to refresh.
Our kitchen knife range spans these grades, so you can build a tiered lineup — value sets, mainstream lines, and performance pieces — with one supplier instead of three. Our products meet FDA, LFGB, and EU food-contact material standards, and our partner factories hold BSCI, Sedex, WCA, and TUV audits. We support OEM/ODM with a typical MOQ of 1,000 pieces, and every quotation states the steel grade, target hardness range, and testing records you will receive — because a grade name without verification is just a word on a spec sheet.
Is a higher HRC always better? No. Higher hardness holds an edge longer but becomes more brittle and harder to sharpen. The right hardness is the one that matches how your customers actually use and maintain their knives.
Can I verify the steel grade myself? Spectrometer testing can confirm composition, and hardness testers verify HRC. For most buyers, the practical route is requiring material certificates and batch hardness records from the supplier, plus periodic third-party testing on first orders.
Why do two 8Cr13MoV knives feel different? Heat treatment, blade geometry, and finishing. The grade sets the potential; the factory's process decides how much of it you get.
Should I put the steel grade on my packaging? If it is verified and it differentiates your product, yes — steel grades are one of the few specifications knife buyers actively compare. Just make sure what is printed matches what is tested.
Sourcing kitchen knives and want the grade, hardness records, and test reports itemized before you order? Send your target products and quantities to service@kaikitchenlife.com.
Scan with WeChat to start chatting