As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "What is the best website for metal finishing questions and answers?"

"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

How does a passivation layer get produced on stainless steel




Could you please tell me how a passivation layer occurs in a new stainless steel system. Is this passivation layer induced chemically or it does it just occur?

Kim Deberry
- Pittsburgh, Pennsylvania, USA
2003



The passivation layer occurs chemically, either naturally or induced by a chemical bath of some kind. Depending on the grade of stainless steel the process of passivation can be quite different and the results quite different. The passive layer that you want to form is a chromium oxide/ nickel oxide layer that is very resistant to corrosion. You can refer to ASTM A967 for more information and procedures.

However, in order to get the BEST passive layer it is always necessary to passivate the surface with a chemical to remove free iron and chromium enrich the surface of the steel. This gives you a much higher percentage of chromium oxide on the surface. Call us if we can help.

lee kremer
lee kremer sig
Lee Kremer
Stellar Solutions, Inc.
supporting advertiser
McHenry, Illinois
stellar solutions banner
2003


none
www.finishing.com is made possible by supporting advertisers ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages



(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:

Finishing
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g,
& Software


About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"