Pocket Knife Steel Explained: S30V vs S35VN vs MagnaCut vs 14C28N
Quick answer: for most people the best pocket knife steel in 2026 is CPM MagnaCut: it holds an edge like S35VN, is tougher than S30V, and shrugs off rust like a stainless steel should. If MagnaCut is out of budget, S35VN and S45VN are the safe premium picks, and Sandvik 14C28N is the best steel you can get on a knife under $50. D2 is fine for the money but needs oiling.
Every knife listing leads with a steel name, and almost nobody explains what it means. The short version: blade steel is a set of trade-offs between how long the edge stays sharp, how much abuse it takes before chipping, how easily it rusts, and how hard it is to sharpen at home. No steel wins all four. The good ones pick a smart balance for the price.
Below is the same comparison we use when we pick knives for our roundups, followed by what each of the common steels is actually good at.
| Steel | Edge retention | Toughness | Corrosion resistance | Ease of sharpening | Typical knife price |
|---|---|---|---|---|---|
| 8Cr13MoV | 2 | 3 | 3 | 5 | $20 to $40 |
| Sandvik 14C28N | 3 | 4 | 4 | 5 | $30 to $80 |
| D2 | 4 | 2 | 2 | 2 | $30 to $90 |
| VG-10 | 3 | 3 | 4 | 4 | $60 to $130 |
| 154CM / CPM-154 | 3 | 3 | 4 | 4 | $80 to $150 |
| CPM S30V | 4 | 3 | 4 | 3 | $120 to $200 |
| CPM S35VN | 4 | 4 | 4 | 3 | $130 to $250 |
| CPM S45VN | 4 | 4 | 5 | 3 | $150 to $250 |
| M390 / 20CV / 204P | 5 | 3 | 4 | 2 | $170 to $350 |
| CPM MagnaCut | 4 | 5 | 5 | 3 | $150 to $400 |
What the four ratings actually mean
Edge retention is how long the blade stays sharp under normal cutting. It comes from hard carbide particles in the steel, mostly vanadium carbides in the premium powder steels. Toughness is resistance to chipping and breaking when you twist, pry, or hit something hard. Steels with big carbides cut longer but chip easier, which is why the two ratings usually move in opposite directions. Corrosion resistance comes from chromium and, in the newest steels, nitrogen. Anything rated 4 or 5 can live in a sweaty pocket without care. Ease of sharpening is the inverse of wear resistance: the steels that hold an edge longest also fight your sharpening stones hardest, so plan on diamond stones for anything M390 and up.
Budget steels: 8Cr13MoV, 14C28N, and D2
8Cr13MoV is the Chinese stainless in most $25 knives. It is soft, so it dulls faster, but it sharpens in minutes on any stone. Sandvik 14C28N is the budget steel to look for: a Swedish stainless with fine grain that takes a scary-sharp edge, resists rust well, and is tougher than steels costing twice as much. Kershaw, Civivi, and most of the better sub-$60 knives use it. D2 is a tool steel with a lot of carbon and only 11 to 12 percent chromium, so it holds an edge for a long time but will spot-rust if you ignore it, and it is a chore to sharpen. Good value, but wipe it down.
Mid-tier steels: VG-10 and 154CM
VG-10 is a Japanese stainless that Spyderco made famous on the Delica and Endura. It is easy to sharpen, very stain resistant, and takes a fine edge, though it will not hold that edge as long as the CPM steels. 154CM and its cleaner powder-metallurgy version CPM-154 sit in the same tier and are common on American-made knives around $100 to $150. Either is a completely sensible daily steel; the difference between them and a premium steel is measured in extra weeks between sharpenings, not in whether the knife cuts.
Premium steels: S30V, S35VN, S45VN, and M390
CPM S30V was the first steel designed specifically for knives, back in 2001, and it remains the baseline premium option on knives like the Benchmade Bugout. Great edge retention and rust resistance, slightly chippy on thin edges. CPM S35VN added niobium to make it tougher and easier to machine and sharpen with almost no loss of edge holding, which is why Chris Reeve and Spyderco moved to it. CPM S45VN is the 2020 refresh with more chromium for better corrosion resistance. M390, and its chemically identical twins CPM 20CV and CTS 204P, is the edge-retention champion of the group: it stays sharp longer than anything above it in the table, at the cost of being the hardest of the bunch to sharpen.
Why MagnaCut is the current default answer
CPM MagnaCut, designed by metallurgist Larrin Thomas and released by Crucible in 2021, replaced most of the chromium carbides in a conventional stainless with smaller niobium and vanadium carbides and used nitrogen to keep the corrosion resistance. The result is a steel with the edge retention of S35VN, the toughness of a tool steel, and better rust resistance than S45VN, all at once. It is the first steel that genuinely does not force a trade-off, which is why Benchmade, Spyderco, Leatherman, Kershaw, and half of the custom makers have adopted it. If two knives you like are otherwise equal and one is MagnaCut, buy that one.
How to choose: match the steel to how you cut
- Boxes, packaging, food, rope: anything from 14C28N up is fine. Buy the knife you like, not the steel.
- Hard use, prying, batoning kindling: favor toughness: MagnaCut, S35VN, 14C28N, or a carbon steel like 1095 if you will oil it.
- Humid climate, sweat, saltwater: MagnaCut, S45VN, LC200N, or H1. Skip D2.
- You sharpen on a cheap stone: 14C28N, VG-10, or 154CM will make you look like a pro. M390 will not.
The Bottom Line
Pick the steel after you pick the knife size, lock, and handle you like, because those affect the daily experience more than the alloy. Then use the table: 14C28N for the best cheap knife, S35VN or S45VN for a premium knife that stays easy to maintain, and MagnaCut when you want to stop thinking about steel entirely. Our current picks in each of those steels are in the best EDC pocket knives of 2026.
Keep reading: Best EDC pocket knives | Best multitools | Everyday carry for beginners
Frequently Asked Questions
What is the best steel for a pocket knife?
CPM MagnaCut is the best all-around pocket knife steel available in 2026, combining the edge retention of S35VN with tool-steel toughness and excellent corrosion resistance. For knives under $60, Sandvik 14C28N is the best steel you can get.
Is MagnaCut better than S30V?
Yes. MagnaCut matches S30V for edge retention while being noticeably tougher (less chipping) and more rust resistant. S30V is still a very good steel, but MagnaCut removes its two weaknesses.
Is D2 a good knife steel?
D2 is a good value steel with long edge retention, but it is only semi-stainless (about 11 to 12 percent chromium), so it can spot-rust in a humid pocket, and it is slow to sharpen. It suits dry climates and owners who wipe the blade down.
What does CPM mean in knife steel?
CPM stands for Crucible Particle Metallurgy, Crucible's powder-metallurgy process. Molten steel is atomized into fine powder and pressed into a solid, which makes the carbides smaller and more evenly spread, improving toughness and edge stability compared with conventionally cast steel of the same composition.
Is S35VN or S45VN better?
They perform almost identically in edge retention and toughness. S45VN has slightly more chromium, giving it better corrosion resistance, so it edges out S35VN for humid climates. In everyday use most people cannot tell them apart.
This post contains affiliate links. If you buy through them, we may earn a small commission at no extra cost to you.