Blade heat treatment
Hardening and tempering to a target HRC, documented per batch. Heat treat is where a blade's edge retention and toughness are won or lost — we control it, measure it, and tell you the number.

Knife heat treatment service
Two knives in the same steel can perform completely differently depending on heat treat. We harden and temper to a target hardness for each steel and use case, with controlled furnace cycles, optional cryogenic treatment for fuller martensite conversion, and differential treatment where a tough spine and hard edge are both needed. Every batch's hardness is checked and can be documented.
Part of OEM Manufacturing — quoted within your production program.
Where this is used
- Through-hardening to a target HRC per steel
- Differential heat treatment — hard edge, tough spine
- Cryogenic (sub-zero) treatment for stainless & powder steels
- Tempering tuned for edge retention vs toughness
- Hardness verification & documentation per batch
Specifications
| Steel class | Typical HRC | Balance |
|---|---|---|
| 5Cr15MoV / X50CrMoV15 | 54-57 | Easy maintenance |
| 9Cr18MoV / 440C | 57-59 | All-round |
| D2 | 59-61 | Edge retention |
| VG-10 / powder steels | 60-62 | Premium edge |
How it runs in production.
Target
We set target HRC for the steel and the knife's job, balancing edge retention vs toughness.
Harden
Controlled austenitize and quench; optional cryo for stainless / powder steels.
Temper
Tempered to land in the target window without brittleness.
Verify
Rockwell hardness checked; batch values recorded and shared on request.
Quality. Hardness is verified by Rockwell test per batch. We can supply the measured HRC with your shipment so the spec is provable, not just claimed.
MOQ & lead time. Heat treat is integral to production — no separate MOQ. Applies to all steels; target HRC confirmed at sampling.
Frequently asked.
Yes — tell us the target and steel; we treat to that window and verify by Rockwell test. Realistic targets depend on the steel.
Yes — sub-zero treatment for stainless and powder steels to convert retained austenite, improving hardness and edge stability.
Yes — measured HRC per batch can be included with QC documentation on your shipment.