No registration, no passwords; no pop-up ads -- just aloha, fun, & authoritative answers.
As an eBay Partner & Amazon Affiliate we receive compensation for qualifying purchases.
Home /
Search 🔍
the Site
pub  Where the world gathers for
plating, anodizing, & finishing Q&As since 1989


Quenching 316L S.S. in Nitrogen?

Q. I have an application for annealing a Investment Cast 316L S.S. component and then water quenching to achieve a hardness of 75-85 hrb.. The supplier is proposing to Quench in Nitrogen.

Please advise if this is acceptable as opposed to Quenching in water?

Joseph Caron
- Paramus, New Jersey

A. Nitrogen quenching is a common practice following annealing of stainless steels, especially for vacuum annealing. The key to the stainless steel quench is to cool the parts rapidly through the temperature range from about 1600F down to below 800F. If the nitrogen quench can accomplish this for your parts within even a few minutes, you should be OK. I would expect a problem only for very large parts. The hardness will not be affected significantly by the cooling rate. The fast cooling is to avoid sensitization and maintain optimum corrosion resistance.

larry hanke
Larry Hanke
Minneapolis, Minnesota

Q. Hello, I am looking for information with respect to annealing of 316L and quenching it very fast with Argon. Do you have any information about this topic.

Kind regards

Hub Merx
- Kerkrade, Limburg, Netherlands
December 19, 2012

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Chemicals &
Consult'g, Train'g
& Software

About/Contact  -  Privacy Policy  -  ©1995-2024, Pine Beach, New Jersey, USA  -  about "affil links"