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 /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub  Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Passivation Testing




We have passivated SS-316L parts based on the SAE format -AMSQQP35 [canceled, affil. link] (Type VI). For testing the passivation, it has been suggested SALT SPRAY TEST, copper sulphate [on eBay or Amazon affil link]TEST, HUMIDITY TEST & Water immersion test. What type of Salt Spray test should we perform on this passivation and for what duration?

SHARAT FAQURUDHEEN
- Chennai, Tamil Nadu, India
2003



Dear Mr Sharat,

You may suggest a neutral Salt Spray test for 48 hours, as per procedure specified in IS 9844 or ASTM B117 [affil link] .

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind
supporting advertiser
Bengaluru, Karnataka, India
saify logo
2003



2003

You wrote:We have passivated SS-316L parts based on the SAE format AMSQQP35 (Type VI). For testing the passivation, it has been suggested SALT SPRAY TEST, copper sulphate TEST, HUMIDITY TEST & Water immersion test. What type of Salt Spray test should we perform on this passivation and for what duration?

Par. 4.4.1 of AMSQQP35 specifies that either a water immersion test or a high humidity test be performed to verify effectiveness of passivate process. You must perform this test to be in compliance with the specification unless:

Procuring activity allows either a copper sulphate test per Par. 4.4.2.2 of AMSQQP35 or a salt spray test per Par. 4.4.2.1 of AMSQQP35. The copper sulphate test is the easiest to perform. When salt spray test is performed AMSQQP35 states that it shall be in accordance with ASTM B117 [affil link] and performed for a minimum of 2 hours using a 5% salt solution.

Peter Cox, Quality Manager
- Seabrook, New Hampshire USA


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:

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


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