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


wellhead welding

wellhead welding

wellhead welding

We will do wellhead welding in offshore.
Wellhead material AISI 4130 and its casing using K55.
What electrode should be used ? ER80S-G / E10018-D2 or E6010 / E7018 or any option ?
Thanks in advance

RE: wellhead welding

Filler metal is the least of your problems. The HAZ in the 4130 will be hard ,the HAZ in casing may be soft. The casing may have high C, causing cracks; any chance you have a chemistry ?I would try a 450 F preheat ; mag particle ( wet fluorescent best ). PWHT ( 1200F ) would be best. Do you need to meet any codes , company specs ? Hardness test to estimate tensile strength.
My perspective is conservative as I wrote company specs and API specs . I know you can" get away" with things not in the specs : how critical is the service ?

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! Already a Member? Login


White Paper - A Guide to 3D Printing Materials
When it comes to using an FDM 3D printer effectively and efficiently, choosing the right material at the right time is essential. This 3D Printing Materials Guide will help give you and your team a basic understanding of some FDM 3D printing polymers and composites, their strengths and weaknesses, and when to use them. Download Now

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