Smart questions
Smart answers
Smart people
Join Eng-Tips Forums
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

Join Eng-Tips
*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.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

copper - tin - lead corrosion in a pure water environment

abp (Mechanical) (OP)
17 Feb 01 19:55
Hi,

I have an application which requires copper, tin, and lead to coexist in a 100 degree Celsius water enviroment for long periods of time (5 to 20 years life times) without generating non-condensable gases due to corrosion. The application requires that less than 1 gram of water be sealed in a copper container, which uses lead-tin solder to make seals and form joints.

There is also a second very similar application that requires copper, phosphor bronze, lead, and tin to coexist in a 100 degree Celsius environment without producing non condensable gases.

I would  appreciate if someone could point out whether these are compatible material sets and if they aren't if there is any conditioning that I can do to the surface of these materials to prevent the formation of non condesable gases. I can not add corrosion inhibitors to the water because that would reduce the surface tension of the water and my application requires the highest possible surface tension.

Thanks.  

abp
rustbuster (Petroleum)
14 Mar 01 17:25
Copper, Bronze, and lead (solder) are all very close in the galvanic series. To be certain of the corrosion potential, testing could be done. The chemistry of the water is the most important factor.
Guest (visitor)
3 Apr 01 7:50
For corrosion you do need oxygen present, in your application, you will have a small amout of corrosion to take place but once the available oxygen is used, then the corrosion process will stop. If possible to add an oxygen remover to the water, then you would not have any corrosion.

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!

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close