Hamon: Bladesmith Heat Treat

Pick a steel and the whole heat treat lays out stage by stage, every temperature cited to a mill datasheet and ready offline. Three steels free, the rest one payment.

Hamon gives DIY bladesmiths the correct heat-treat schedule for the exact steel and equipment they own.

Pick your steel, your quench, and your target hardness. Hamon lays out the whole schedule — austenitize temperature and soak time, the quench, optional cryo, and the temper passes — painted on a timeline that glows in the real colour of hot steel. Every number is sourced to Knife Steel Nerds and mill datasheets, so you can check the reference behind each step.

WHAT YOU GET

• The right numbers for your steel: austenitize, soak, quench, cryo, and temper, with the hardness (HRC) you should land on.
• Equipment honesty. Tell Hamon what you actually have — a forge, a kiln, dry ice, liquid nitrogen — and it tells you plainly when your gear cannot reach what your steel needs, before you ruin a blade.
• A cited source for every value, not a rule of thumb passed around a forum.
• An incandescence timeline that shows each stage in the colour hot steel really glows, from red through orange to white.

FREE TO START Three beginner steels — 1084, 80CrV2, and 15N20 — are free, with their full schedules. Work through them, get the feel of the tool, and unlock the rest when you are ready.

ONE-TIME UNLOCK The full steel library — including Magnacut, AEB-L, and the alloy steels — is a single one-time purchase. It is not a subscription. You pay once, you own it, and there are no recurring charges. You can restore your purchase at any time from Settings inside the app.

EVERYTHING ON YOUR DEVICE Hamon runs entirely on your iPhone. No account, no sign-in, no analytics, no connection required — it works with no signal at the anvil.

Privacy Policy: https://hadgerapps.github.io/hamon/privacy/ Terms of Use: https://hadgerapps.github.io/hamon/terms/

From Hadger. We make calm, on-device tools.