Hobbyists & Industry luminaries alike learn on every visit
(we earn from 'affiliate link' purchases)

Curated with aloha by
Ted Mooney, P.E. RET

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

  The authoritative public forum
  for Metal Finishing 1989-2025

-----

Post Wash of Nitric solution from passivate

I am currently producing a stainless steel hinge (304 ss) that requires passivate. If the hinge is not taken apart, the (2) leaves and the hinge pin, does the Nitric acid from passivate have any adverse effect to the stainless if not completely washed?

TED HOFFMANN
JOB SHOP - MACHINING - Caledonia, MICHIGAN, USA
2004

The nitric acid left on the spring will definitely cause problems. You can get pit corrosion upon aging in addition to the hazard of the acid itself when it might touch another surface.

Lee Kremer
Stellar Solutions, Inc.

McHenry, Illinois

2004

(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: