Not all sword steel is equal. Carbon content, alloying elements, and heat treatment each shape how a blade performs, ages, and fails. Use this tool to compare the steels most commonly found in functional swords — from budget carbon to traditional tamahagane.
1060 Carbon Steel
HRC 50-55
Best for: Beginners, contact sparring, practice cutting
The most forgiving steel in the practitioner world. Bends rather than breaks under lateral stress, making it ideal for beginners and heavy dojo use. Low carbon content means easier sharpening but quicker edge wear.
1075 Carbon Steel
HRC 53-57
Best for: Training swords, entry-level tameshigiri
A step up from 1060 with better edge retention while keeping most of the toughness. Common in mid-range training swords. Responds well to heat treatment and is widely available.
1095 Carbon Steel
HRC 56-60
Best for: Tameshigiri, dojo cutting practice, intermediate practitioners
The workhorse of practical cutting swords. High carbon content delivers a sharp, lasting edge. Less flexible than 1060 series - lateral abuse can cause chips or breaks, so technique matters. Requires regular oiling.
T10 Carbon Steel
HRC 58-62
Best for: Serious cutting, competition tameshigiri, collectors
Tungsten-added tool steel with exceptional edge retention and wear resistance. Often clay-tempered to produce a visible hamon. Harder to sharpen than lower-carbon steels - requires quality whetstones. Rusts quickly if neglected.
9260 Spring Steel
HRC 50-55
Best for: Heavy use, theatrical combat, durability-first buyers
Silicon-manganese spring steel built to flex and return to shape. Exceptional resilience under lateral stress. The silicon content adds modest corrosion resistance over plain carbon steels. Popular for reconstructionist and stage work.
5160 Spring Steel
HRC 52-57
Best for: Outdoor cutting, heavy-duty dojo use, demanding practitioners
Chrome-vanadium spring steel with outstanding impact toughness. Widely used in heavy-duty blades that see rough treatment. Slightly better corrosion resistance than plain 10xx steels. A favourite among Western martial arts practitioners.
L6 Bainite
HRC 57-60
Best for: Advanced practitioners, demanding cutting disciplines
Through-hardened to a bainitic microstructure rather than the usual martensitic. The result is a near-impossible combination of toughness and edge retention. Considered by many serious practitioners to be the best practical sword steel. Commands a premium price.
Tamahagane
HRC 60-65 (edge)
Best for: Iaido, Kenjutsu, serious study, museum-quality collection
Smelted from iron sand in a tatara furnace, tamahagane is differentially hardened to produce a hard cutting edge (ha) over a tough spine (mune). Each blade is unique. Sharpening requires traditional fingerstones and skill. Not for cutting practice - for study, ceremony, and art.
AUS-8 Stainless
HRC 57-59
Best for: Display, humid climates, low-maintenance collectors
Japanese stainless often used in decorative and wall-hanger swords. Adequate for light cutting but not suited to serious tameshigiri. The main appeal is near-zero rust maintenance. Does not hold an edge as well as quality carbon steels.
VG-10 Stainless
HRC 60-62
Best for: Collectors, humid environments, minimal maintenance
Premium Japanese stainless with a cobalt and vanadium core. Excellent edge retention for a stainless steel and outstanding corrosion resistance. Brittle compared to carbon alternatives - lateral stress can snap the blade. Not recommended for cutting practice.