×
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

AISI 616 Weldability?

AISI 616 Weldability?

AISI 616 Weldability?

(OP)
I'm unfamiliar with this type stainless steel or it's weldability, yet have an emergent need to add .050" of weld build up to bars of this material for alignment purposes. Can anyone provide guidance?? Thanx is advance.

RE: AISI 616 Weldability?

The designation you refer to is probably ASTM A565 Grade 616, which is a 422 stainless steel. This is a martensitic stainless steel for elevated temperature service.

This is a weldable alloy. However, could you please provide specific service details? The reason for my asking is for the proper selection of filler metal. For service temperatures below 1000 deg F, an Inconel or Ni base filler metal would work.

AISI Type 422 will require a 500 deg F preheat, and stress relief that could result in warpage to a finished product.

RE: AISI 616 Weldability?

(OP)
Thanx metengr. IP turbine application. Steam temp should be 980 to 998 F. We need to raise stationary blade ring elevations .050". Intent is to apply weld build up to 4"L x 2.5"W x .75"T spacers, then surface grind to required dimension. Actually my plan at present is to use Inco filler with 400 deg F preheat and skip the PWHT. While this will leave very hard heat affected zone, am anticipating/hoping not to have a problem in this application. Schedule critical.

RE: AISI 616 Weldability?

For this application, totally agree with your approach and the elimination of PWHT. I would use Inconel, as you suggested. Perform a PT after weld repair.

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