No passwords, No popups, No cost, No AI:
we earn from 'affiliate link' purchases, making the site possible

Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

  The authoritative public forum
  for Metal Finishing since 1989

-----

Must we repassivate after welding

We are welding together two components made from austenitic stainless steel and which have been passivated per QQ-P-35C (canceled) [link is to free spec at Defense Logistics Agency, dla.mil]. The welding process is GTAW and no filler metal is used. Is it necessary to re-passivate the exposed surface of the weld in order to maintain the corrosion resistance of the surface?

Bob Pringle
John Crane Belfab
1996

The answer is yes, but unfortunately the heat affected zone may not passivate like the rest of the material.

Regards,

Dave Kinghorn
Chemical Engineer
SUNNYvale, California
1996

www.finishing.com is made possible by supporting advertisers ...
this text gets replaced with bannerText

(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: