Applied research · Cold Facts column #4 · January 2026
Cryogenic Treatment Standards, Testing and Certification
The main barrier to wider use of cryogenic treatment is the lack of standards for building chambers, running cycles, testing results and certifying parts. This column shows how heat treating solved each one and how cryogenic treatment can follow.
By Jack Cahn, Chief Technologist · First published in Cold Facts, Cryogenic Society of America, Vol. 41 No. 6, January 2026
Key points
- Chambers can already be built to the safety and quality standards heat-treat furnaces meet (UL and CSA electrical, AMS 2750 pyrometry). The limit is economic, not technical.
- No universal processing standard exists. Recipes look alike (ramp down, dwell, ramp up, temper), but the temperatures that trigger each benefit vary by alloy.
- Rockwell hardness testing (ASTM E18), the heat treater's usual check, does not reliably show whether a part was cryogenically treated.
- X-ray diffraction (XRD) can: it measures residual stress and retained austenite, detects flaws and phase changes, and can confirm a treatment was applied.
- Existing XRD standards, SAE J784A (1971) and ASTM E2860-12 (2012), give a ready-made route to certifying treated parts.
This is DCI's summary. The full article, with its figures and references, is in the PDF above.
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First published in Cold Facts, the magazine of the Cryogenic Society of America, January 2026. Shared here by the author.
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