×
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

Welding Chrome-molley valves to 304 SS Pipe

Welding Chrome-molley valves to 304 SS Pipe

Welding Chrome-molley valves to 304 SS Pipe

(OP)
I'm looking for some guidlines to help me select filler metals for welding dissimilar metals. Specifically SA-182 F22 (P-5A) to SA-312 TP 304 Seamless Pipe (P-8). I would like the resource so I have a way to look this up in the future and would welcome any input on my delima at hand.  Thanks!!

RE: Welding Chrome-molley valves to 304 SS Pipe

The general weld filler metal guidelines are provided below but may require alternate selection based on corrosive environment.

Use ER/E309 for welds not requiring PWHT or operating  below 500 F to 600 F.

When PWHT is required or the operating temp is greater than 500 F to 600 F, use a nickel base alloy filler metal; eg., ENiCrFe-3 or ERNiCr-3 or similar.

RE: Welding Chrome-molley valves to 304 SS Pipe



Stanweld has given the right answer. If your service permits, I will add use TP 304 flanged valves and use F22 flanges on your P22 pipe to make the connection between your valve and your pipe.

luis marques

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