×
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 Stainless Casting
2

Welding Stainless Casting

Welding Stainless Casting

(OP)
We would like to weld JIS SCH13 (Equivalent to ASTM A297 HH). I understand ther AWS A5.4 E309-16 can be used. There will not be preheat or PWHT. Maximum interpass temperature will be 150 C.

Please comment about this consept. Should we have any precaution for this work?

RE: Welding Stainless Casting

PAN;
The only change that I would suggest is using an SFA 5.4 E310Cb weld rod for this application. The E310 Cb is a columbium stablized grade, and is commonly used to weld repair heat resisitant castings. In addition, I would suggest performing a post weld NDT like Liquid Penetrant to assure weld depsoit and surrounding and base metal integrity.

RE: Welding Stainless Casting

(OP)
metengr,
Thanks for the comment. Could you please advise me about the reason to recommend E310Cb instead of E309Cb?

RE: Welding Stainless Casting

PAN;
The E309 Cb has the following alloy content regarding Cr and Ni;

22%-24% Cr, with 12%-16% Ni + Cb

The E310 Cb has the following alloy content regarding Cr and Ni;

24%-26% Cr, with 19%-22% Ni + Cb.

Typically, I like to use slightly over-matching alloy filler metal for elevated temperature oxidation resistance and creep strength when weld repairing HX series heat resistant stainless steel castings. You certainly can use the E309 Cb, I would not use E309-16.

RE: Welding Stainless Casting

All the Hx alloys have behaviour problems when welding.  It takes welder a little while to get use to material.
I would let each welder have a try on a scrap piece.

We have found several things in welding Hx materials that help a lot.
Use a welder that you consider a good stick SS person.  
Use a short arc welder. This is to help with the tendency of some castings to "fall away in the arc".
Watch the angle of the elctrode, don't let it get too flat.  
Watch the dwell time on the walls.  Most of these alloys are hot short.

Don't get too far into your welding without do some testing.
 

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