Heat Treat
Heat Treating Knife Steel: Complete Guide
Heat treating is what turns a piece of flat bar stock into a functional knife blade. Done correctly, it transforms the steel’s internal crystal structure…
ForgeBrain
Heat Treat Library
Heat-treat recipes, principles, equipment and troubleshooting for hardening and tempering knife steel at home, on two paths: forge and magnet, or kiln and thermocouple.
8 guides in this section · free to read
Browse
Start where the work is
Every guide on this shelf, with the question closest to your bench first.
Heat TreatHeat Treat Oven Buyer’s Guide: Choosing a Knifemaking Kiln
Torch heat-treating and forge heat-treating both work, but a dedicated heat-treat kiln is what actually makes results repeatable, hitting the same target…
Heat TreatSending Blades Out for Heat Treat: How Pro Services Work
Here’s the secret experienced makers wish beginners learned sooner: you don’t have to do your own heat treating. Professional heat treating services exist…
Heat TreatHeat Treating a Knife Without a Kiln: Torch & Forge Methods
“Do I need a $1,000+ kiln to heat treat a knife?” No — and pretending otherwise keeps a lot of people from ever making their first blade. Makers hardened…
Heat TreatKiln Heat Treating: Programs, Soaks & Protocols
A kiln turns heat treating from an art of eyes and magnets into a science of numbers — which is exactly why it unlocks the high-carbide steels a forge…
Heat TreatPlate Quenching Explained: Why Stainless Blades Get Squeezed, Not Dunked
Somewhere in every stainless steel’s heat-treat sheet is a phrase that confuses first-time kiln owners: “plate quench.” No oil, no dramatic hiss — the…
Heat TreatKnife Quench Oils Explained: Canola, Parks 50 & What to Avoid
Every new maker eventually stands in front of a hot blade holding the same question: what do I actually quench this in? The forum answers range from…
Heat TreatToughness-First Heat Treat for Field Knives
A field knife’s heat treat inverts the kitchen-knife instinct: instead of chasing maximum hardness for edge life, you deliberately spend hardness to buy…
Keep looking
The rest of ForgeBrain
Free to read, no sign-up, written from the same bench.
Same bench
Put the reference to work
I machine the parts, hand-assemble, track and test Torus grinders in Sterling, Illinois. Most orders ship in seven to ten business days from time of order.
Nova 2×72 Aluminum Belt Grinder
Current dual-axis platform with a fiber-laser-cut 6061 chassis and single-knob tracking.
Starts at$1,295
Nebula 2×72 Steel Belt Grinder
Current dual-axis platform with a steel chassis, more mass and less vibration.
Starts at$1,295
Torus 2×72 Classic Aluminum Belt Grinder
Prior-design aluminum chassis, 90-degree tilt and 1.5-inch tooling arms.
Starts at$995
One-man shop
Ask about a missing topic
I answer my own email. Tell me what you are building and what the steel is doing, and I will tell you what I would try.