Steel matchup
5160 and 80CrV2, compared on the five things that decide a blade: toughness, edge retention, corrosion, heat treat and how each one grinds.
The classic chromium spring steel: outstanding toughness at moderate hardness, low cost, and a leaf-spring heritage that makes it the default choice for swords, machetes and camp choppers — provided you resist the urge to run it hard.
A simple, forgiving high-carbon steel with a small vanadium addition for grain refinement, popular with bladesmiths for tough, hard-use forged blades and choppers.
Dimension by dimension
Each steel's own note, its score out of five, and what separates the two in that one column. The higher score in a row is marked in purple.
| Dimension | 5160 | 80CrV2 | What separates them |
|---|---|---|---|
| Toughness | The whole reason to choose it. Low carbon content means very little excess carbide, and the chromium and manganese give clean, deep hardening — the result is a steel that bends, absorbs impact and returns rather than chipping or snapping. This is why it dominates sword and chopper work. Critically, the advantage lives at 57–59 HRC and is largely spent by 61 HRC. | Excellent for a simple high-carbon steel. The vanadium addition refines grain size compared to plain steels like 1080 or 1084, giving it very good toughness that makes it a popular choice for choppers, camp knives, and swords. | 5160 has a small edge at equivalent hardness, thanks to lower carbon and less excess carbide. But 80CrV2's vanadium refines grain, which recovers much of the gap — and because 80CrV2 is usually run 1 to 2 points harder, the two often end up performing very similarly in a real blade. Both are top-tier tough. |
| Edge retention | Modest, and honestly so. At roughly 0.60% carbon there is neither the hardness nor the carbide volume for long slicing life — it will need touching up sooner than 1084, O1 or 52100. In exchange it sharpens back to working sharp in a few passes on almost any stone, which is the right tradeoff for a field blade. | Modest compared to alloy tool steels or stainless PM steels, in line with other simple high-carbon steels. It sharpens very easily and takes a keen edge, but will need more frequent touch-ups under hard use than higher-carbide steels. | 80CrV2 wins. Around 0.80% carbon against 5160's 0.60% means a harder achievable edge — typically 59 to 61 HRC versus 57 to 59 — and the small vanadium addition contributes some genuinely wear-resistant carbide. In slicing, that gap is noticeable. |
| Corrosion resistance | None to speak of. The ~0.8% chromium is a hardenability alloy, not a stainless one. Expect rust on neglected blades and a fast patina on working ones — for a machete or camp knife that patina is a perfectly good protective finish. | Not stainless and not intended to be. Like other simple carbon steels, it will rust without an applied finish or regular oiling and drying. | A tie. 80CrV2 carries about 0.5% chromium and 5160 about 0.8%, neither of which is enough to slow rust meaningfully. Both are carbon steels that patina quickly and rust when neglected. |
| Heat treat | Normalize and thermal cycle first, especially for forged blades or reclaimed spring stock. Austenitize at ~1525°F with a 10 minute soak, quench in a medium-fast oil — the chromium provides enough hardenability that a violent quench is unnecessary, which helps long blades survive straight. Temper twice for two hours at 400–450°F to land 57–59 HRC. Resist going higher: above about 60 HRC you trade away the toughness that is 5160's entire reason for existing. | Austenitize at approximately 1525 F, holding 10-20 minutes depending on stock thickness (for forge heat treating, heat to just past nonmagnetic and no hotter). The steel is difficult to overheat thanks to its carbon and vanadium balance, making it forgiving for less precise setups. Quench in a medium-speed oil (fast oils also work well with no toughness penalty observed). Temper twice, 2 hours each cycle, in the 300-450 F range; 350-400 F is the recommended sweet spot for most knives, yielding roughly 60-61 HRC with a strong toughness-hardness balance. Avoid tempering above 450 F, which risks tempered martensite embrittlement. | Both are forgiving and forge-friendly. 80CrV2 austenitizes around 1500°F with a short soak in fast oil, tempered 375 to 425°F for 59 to 61 HRC. 5160 wants about 1525°F, a 10 minute soak, medium-fast oil, and 400 to 450°F to land 57 to 59. Vanadium makes 80CrV2 more resistant to grain growth if your temperature control is imperfect — a real advantage in a forge. |
| Grinding | Grinds and files easily in the annealed state and forges beautifully, which is why it is a bladesmithing staple. Hardened 5160 at 57–59 HRC is also comparatively cooperative on the belt. New bar stock behaves far better than reclaimed leaf springs, which arrive with scale, service fatigue and unknown history. | Very easy to grind, similar to other simple high-carbon steels like 1084 and 5160. A good choice for makers who want fast, low-effort stock removal or forging. | Very close, both cooperative. 80CrV2 at 60 HRC is slightly harder on belts than 5160 at 58, but the difference is minor and neither punishes a sharp belt. 5160 is more often reclaimed leaf spring with scale to grind through. |
Best use
5160
swords, machetes, kukris, tomahawks and the largest camp choppers, where flex and impact survival are everything.
Open the 5160 reference80CrV2
camp knives, bushcraft blades, hard-use fixed blades and choppers that still need to slice well.
Open the 80CrV2 reference
The long answer
The two steels that dominate any conversation about tough carbon blades, and the matchup where the honest answer is genuinely close. 80CrV2 is roughly 1080 with vanadium added for grain refinement; 5160 is a lower-carbon spring steel with chromium. Both are excellent. The tiebreaker is how hard you want to run the blade.
Keep comparing
Keep reading
5160 is a forgiving steel on the grinder, and the challenges it does present come from the blades people make out of it rather than the alloy itself…
80CrV2 is one of the easiest steels in this database to grind and forge, sharing the same forgiving character as simple carbon steels like 1084. Its small…
Every knife steel is iron plus a specific recipe of other elements, and each of those elements pulls the steel’s behavior in a particular direction…
Same bench
Whichever steel wins, the grind is only as flat as the platen behind it. I machine the parts, hand-assemble, track and test Torus grinders in Sterling, Illinois.
Current dual-axis platform with a fiber-laser-cut 6061 chassis and single-knob tracking.
Current dual-axis platform with a steel chassis, more mass and less vibration.
Prior-design aluminum chassis, 90-degree tilt and 1.5-inch tooling arms.
One-man shop
Tell me what the blade is for and how you heat treat, and I will tell you which of these I would put on the bench — including when the answer is neither.
