×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Zinc Nickel vs Brigh Zinc

Zinc Nickel vs Brigh Zinc

Zinc Nickel vs Brigh Zinc

(OP)
I am looking for data that compares the salt spray results of zinc nickel with an iridecent chromate conversion with that of bright zinc.  The questions I'm trying to answer are how much better is zinc nickel than bright zinc and will zinc nickel stand up to immersion in water over a 2 year period?  Any help would be greatly appreciated.

Erik

RE: Zinc Nickel vs Brigh Zinc

A good place to start is information from engineering standards like ASTM B 633 for zinc plating and ASTM B 841 for zinc-nickel plating.  For a 5 micrometer coating of Zn or Zn-Ni, the corrosion requirements are as follows:

Zn: no red rust after 96 hour salt spray test
Zn-Ni: no red rust after 500 hour salt spray test

You can also find good information from the websites of better plating companies.  I have found the following to be particularly good:

http://www.modernplating.com/corrosion.html

http://www.surtec.com/Publications.html

http://www.macdermid.com/industrial/zinklad/index.html

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources