Knife Steel Lookup

Steel is the line on the spec sheet that decides how a knife behaves for years, and it is the line makers explain worst. Three numbers tell you most of the story. Edge retention is how long the edge keeps cutting before it needs the stone. Toughness is how much abuse — prying, batoning, a dropped tip — the blade takes before it chips or snaps. Rust resistance is how much neglect the steel forgives. No steel wins all three; every blade you own is a trade someone picked. The table below rates 21 common knife steels on the same 1-to-10 scale so the trades sit side by side, with the hardness each steel is usually run at and the knives you will actually find it in. Type a steel or a knife name in the box to filter, and click any column heading to sort by it.

Our ratings, scaled 1–10 from published lab data — chiefly Larrin Thomas’s testing at Knife Steel Nerds, which measures edge retention with standardized cutting tests, toughness with impact (Charpy) tests, and corrosion with controlled salt exposure. A steel’s ratings assume the hardness makers usually run it at; the same steel hardened well above or below that range moves a point or so.

Reading the table: two knives from our own comparison

Take the two finalists from our Garberg vs ESEE-4 head-to-head. The Garberg’s 14C28N rates 5 for edge retention, 6 for toughness, and 8 for rust resistance — a balanced stainless that asks almost nothing of you in a wet pack. The ESEE-4’s 1095 rates 3, 7, and 1: it gives up edge life and rusts if you put it away wet, and in trade it sharpens on any stone you own and shrugs off batoning that would chip harder steels. Neither row is the better knife. They are two different answers to where the knife will live — and the full six-knife field in our fixed-blade comparison runs five different steels, which is exactly why this table exists.

How to use it

1. Find the steel on the knife you are considering. The maker prints it on the blade or lists it in the specs. If a listing just says “stainless steel” or “surgical steel” with no grade, treat that as a rating of its own — makers name good steel.
2. Match the trade to the job. Splitting wood and prying: read the toughness column first. A knife that lives in a damp truck box: rust resistance first. A folder that cuts boxes and rope daily: edge retention first, and budget for a diamond stone.
3. Check the hardness. The same steel at 55 HRC and at 60 HRC is two different blades — softer is tougher and duller sooner, harder holds an edge and chips easier. A maker who publishes hardness is telling you which trade they chose.
4. Then read the knife, not just the steel. Geometry and heat treatment move real-world performance as much as the alloy does. Our Knives & Tools section scores whole knives — steel is one input of four.

Questions people ask

What do the three numbers leave out? Heat treatment and blade shape. A well-treated mid-grade steel beats a badly treated premium one, and a thin slicer and a thick splitter in the same steel are different tools. These ratings describe the steel at its typical hardness, in a typical blade — the starting point for judging a knife, not the whole judgment.

Is a higher edge-retention number always better? Not in the field. The steels at the top of that column earn it with hard carbides, and hard carbides want diamond or ceramic abrasives and punish prying. A knife you can resharpen to working sharp on a plain stone in five minutes — 1095, 1075, 14C28N — is the better tool for a week away from your bench.

Why does 1095 score so low and still show up on hard-use knives? Because the column it wins — toughness, plus the one we don’t rate, sharpenability — is the column hard use actually reads. It is cheap, forgiving, and nearly impossible to ruin with a stone, which is why military and camp knives have run it for decades. Its real cost is the 1 in the rust column: it needs oil and a dry sheath.

What is the catch with MagnaCut? Mostly the price of the knives wearing it. The lab data really does show a stainless steel with toughness in carbon-steel territory and the best corrosion resistance ever measured on a knife steel — the trade that used to be impossible. Expect to pay for it, and expect more knives at ordinary prices to wear it as it spreads.

Is D2 stainless? Nearly, and that is the honest answer. It carries almost enough chromium to qualify, which earns it the 4 in the rust column: it will not rust if you look at it, the way 1095 will, but it stains and pits in salt air and wet sheaths where a true stainless shrugs. Treat it as a carbon steel with better manners.

Three steels from the table, in the flesh

The three fixed blades buyers cross-shop most from our comparison — one stainless all-rounder, and two takes on 1095 carbon steel:

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