9Cr18MoV vs 8Cr13MoV: Budget Chinese EDC Knife Steels Compared

If you are shopping for an everyday carry knife under $70, the steel stamped on the blade is likely either 9Cr18MoV or 8Cr13MoV. These two Chinese stainless steels dominate the budget tier, and they are genuinely close in performance — close enough that most of the "which one is better" advice you will read online is guesswork.

This guide settles it with a practical comparison: what each steel is made of, how they behave on the edge and in the rain, which knives actually use them, and what you should buy depending on how you carry.

What Is 9Cr18MoV?

9Cr18MoV is a high-carbon stainless steel made in China, officially designated under the GB standard. In DIN/ISO-style naming it is often written 100Cr18MoV — same steel, different label. The name tells you the recipe: roughly 0.9 percent carbon, around 18 percent chromium, plus small amounts of molybdenum and vanadium.

That high chromium content is the headline. It puts 9Cr18MoV in the same corrosion-resistance conversation as steels like 440C, and it is what makes the steel a workhorse for brands that sell a lot of affordable folders. CIVIVI leans on it harder than almost any brand: the CIVIVI Praxis at $50, the CIVIVI Baklash at $65, the CIVIVI Ortis at $47, the CIVIVI Bullmastiff at $66.80, and the whole Mastodon family (Mini Mastodon at $56.20, full-size Mastodon at $64.20) all run 9Cr18MoV blades.

What Is 8Cr13MoV?

8Cr13MoV is the older, more widely known budget Chinese steel. The recipe is similar in spirit but leaner: roughly 0.8 percent carbon and around 13 percent chromium, again with molybdenum and vanadium added. Less carbon and less chromium than its 18-percent sibling means it is a touch softer in typical heat treatments and a touch easier to sharpen.

If you have handled an affordable Kershaw or a Spyderco Byrd, you have handled 8Cr13MoV. In the current catalog, the Spyderco Tenacious at $57.29 and the Kershaw Oso Sweet at $35.79 are two of the best-known 8Cr13MoV knives still in production. It is often compared to steels like AUS-8: not spectacular anywhere, but competent everywhere.

Composition: What the Numbers Actually Mean

More carbon means more hard carbides can form during heat treatment, which translates to a longer-lasting edge. More chromium means better corrosion resistance. Both steels sit in the "budget but legitimately good" tier — well above mystery steels, well below premium powder steels.

For a deeper look at why hardness numbers like these matter, see our guide to what the Rockwell scale means.

Edge Retention: A Modest but Real Difference

In everyday use, 9Cr18MoV holds an edge noticeably longer than 8Cr13MoV. The gap is not dramatic — we are comparing two budget steels, not a budget steel against M390 — but it shows up in practice: more cuts on cardboard before the edge starts rolling, and a bit less frequent touch-up on a strop.

8Cr13MoV is not far behind. For light EDC duty — opening boxes, cutting tape, food prep, whittling — most people will not feel the difference in a single day. You feel it over weeks of use without sharpening.

Corrosion Resistance: 18% Chromium Wins

This is where the 9 in 9Cr18MoV does its best work. Eighteen percent chromium is a meaningful step up from thirteen percent, and it shows in humid climates, sweaty pockets, and food-contact cutting. Neither steel will rust on you if you wash and dry the blade like a normal person, but 9Cr18MoV is the safer bet for coastal carry or heavy summer sweat.

8Cr13MoV is still a stainless steel — it is far from the rust-prone reputation of high-carbon tool steels like D2. But if corrosion resistance is your top priority in the budget tier, the 18-percent grades have the edge.

Toughness and Sharpening

8Cr13MoV is the more forgiving steel in every hands-on way. It sharpens easily on budget stones, takes a working edge quickly, and is less likely to chip if you abuse the edge. The lower hardness target gives it a little more toughness in thin grinds.

9Cr18MoV asks for slightly better technique on the stones, but it rewards you with a finer edge that lasts longer. Neither steel is difficult to maintain — both are far easier than D2, which is exactly why they show up on so many beginner-friendly knives. If you are new to maintenance, our beginner sharpening guide covers the tools and technique.

Heat Treatment Matters More Than the Name

Here is the honest truth about budget steels: the manufacturer's heat treatment moves the needle more than the steel name does. A well-treated 8Cr13MoV blade can outperform a sloppy 9Cr18MoV blade. That is why we recommend buying from brands with consistent quality control — CIVIVI, Kershaw, and Spyderco all heat-treat these steels competently — rather than chasing the steel label alone. For the full picture, read our breakdown of the steel triangle: edge retention, toughness, and corrosion resistance are always a trade-off.

The Best Knives Using Each Steel Right Now

9Cr18MoV — the CIVIVI lineup:

• CIVIVI Praxis (G10, 3.75" blade) — $50. The budget flipper benchmark.
• CIVIVI Baklash (wood, 3.5" blade) — $65. A slightly more aggressive blade profile.
• CIVIVI Ortis (FRN, 3.25" blade) — $47. Lightweight carry.
• CIVIVI Bullmastiff (Micarta, 3.83" blade) — $66.80. A big cutting platform.
• CIVIVI Mini Mastodon (G10, 2.97" blade) — $56.20.
• CIVIVI Mastodon (G10, 3.83" blade) — $64.20.
• CIVIVI Badlands Vagabond (FRN, 3.25" blade) — $47. Flipper plus thumb stud.

8Cr13MoV — the classic names:

• Spyderco Tenacious (8Cr13MoV, 3.39" blade) — $57.29. The most famous budget Spyderco.
• Kershaw Oso Sweet (8Cr13MoV, 3" blade) — $35.79. Assisted opening, pocket friendly.

Which Should You Buy?

Pick 9Cr18MoV if you want the best all-around budget steel: better edge retention, better corrosion resistance, and a huge selection of well-made CIVIVI folders in the $47–$67 range. It is the easy recommendation for a first EDC knife or a daily box-opener.

Pick 8Cr13MoV if you are buying a Kershaw or a Spyderco you already love, or if you sharpen freehand and want the most forgiving steel to learn on. At these prices you are not making a sacrifice — you are choosing between two competent budget options with slightly different personalities.

If you want to see how these two compare against the wider budget-steel field, our budget steel comparison covers 14C28N, AR-RPM9, Nitro-V, and S35VN in one place.

Getting the Most from Either Steel

Whichever one you pick, budget stainless responds well to a little care. A few passes on a strop every couple of weeks keeps the edge working far longer than waiting until it is dull, and it costs nothing. When you do sharpen, a guided system at a consistent angle beats freehand guesswork — these steels sharpen cleanly at just about any angle in the practical range, so the consistency matters more than the exact number.

Keep the pivot clean and lightly lubricated, and wipe the blade after humid or food-contact use. Nine times out of ten, a budget knife that "lost its edge" is really a knife that needs a strop, not a knife that needs a better steel. Both 9Cr18MoV and 8Cr13MoV will serve you for years if the edge is maintained and the knife is not abused.

FAQ

Which steel is better, 9Cr18MoV or 8Cr13MoV? For most everyday carry jobs, 9Cr18MoV has a slight edge: higher carbon and chromium give it a bit more wear resistance and corrosion resistance. 8Cr13MoV is easier to sharpen and a touch more forgiving. Both are solid budget steels; the difference matters less than the knife design and heat treatment.

Is 9Cr18MoV the same as 100Cr18MoV? Yes, they are the same steel under two naming systems. 9Cr18MoV is the Chinese GB designation, while 100Cr18MoV is the equivalent DIN/ISO-style designation. Sites that list 100Cr18MoV are referring to the same material.

Is 8Cr18MoV the same as 8Cr13MoV? No. 8Cr13MoV contains roughly 13 percent chromium, while 8Cr18MoV (and 9Cr18MoV) contain around 18 percent. The higher chromium content gives the 18 percent grades better corrosion resistance and slightly different edge behavior.

Can 9Cr18MoV knives hold a razor edge? Yes, at typical hardness in the high 50s HRC, 9Cr18MoV can take a very sharp edge and hold it reasonably well for a budget steel. It won't match premium steels like S35VN or M390 in edge retention, but it is a clear step up from softer budget blades.

Which knives use 9Cr18MoV and 8Cr13MoV? CIVIVI uses 9Cr18MoV across much of its lineup, including the Praxis, Baklash, Ortis, and Mastodon family. 8Cr13MoV is a classic choice for brands like Kershaw and Spyderco's Byrd line, including the Spyderco Tenacious.

Reference reading: [Knife Steel Nerds](https://knifesteelnerds.com/ "Knife Steel Nerds" target="_blank" rel="noopener noreferrer nofollow) for metallurgy deep dives, [Wikipedia's list of knife blade materials](https://en.wikipedia.org/wiki/List_of_knife_blade_materials "Blade materials" target="_blank" rel="noopener noreferrer nofollow) for composition data, plus the [CIVIVI official site](https://civivi.com/ "CIVIVI" target="_blank" rel="noopener noreferrer nofollow) and [Kershaw's official site](https://kershaw.kaiusaltd.com/ "Kershaw" target="_blank" rel="noopener noreferrer nofollow) for current model specs.