×
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

UHA 44 Post fabrication requirements for SA 240 316L

UHA 44 Post fabrication requirements for SA 240 316L

UHA 44 Post fabrication requirements for SA 240 316L

(OP)
Hi,

I was reviewing Table UHA 44. I could not find the material 316L listed there. 316 is listed but 316L is not. Is there any specific reason?? In case, the allowable elongation range for an elliptical head of SA 240 316L is to be seen, does the code provide any reference for it?

RE: UHA 44 Post fabrication requirements for SA 240 316L

Max temperature limit of SA 240 316L as per ASME II D is lower than the design temperature condition specified in table uha-44 for the austenitic chromium nickel.

RE: UHA 44 Post fabrication requirements for SA 240 316L

(OP)
@kiad: In my case, the vessel (O.D of 610 mm), but being made from plate of SA 240 316L rolled to the specified diameter and temperature of 87 Deg C, is having an ellipsoidal head EFE of 12.667%.

Does it mean that SA 240 316L (having a maximum temperature of 850 Deg F does not require heat treatment at any temperature regardless of the amount of strain developed as per Table UG 79-1??
Am i missing something in the code??

RE: UHA 44 Post fabrication requirements for SA 240 316L

(OP)
Moreover, If I see for 316 also, table UHA 44 gives the requirement of heat treatment at temperatures more than 580 Deg C and the corresponding strain limit exceeding etc.
From this, I understand that even for 316 only, the post fabrication heat treatment is not required at temperatures less than 580 Deg C.

So, by this I understand that, since the max temperature of 316L is 455 Deg C (850 Deg F), heat treatment for 316L is exempted irrespective of the amount of strain developed as per Table UG 79-1

I hope I am interpreting the clause correctly.

RE: UHA 44 Post fabrication requirements for SA 240 316L

(OP)
Any comments guys??

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

eBook - Efficient and Effective Production Support with 3D Printed Jigs and Fixtures
Jigs and fixtures offer manufacturers a reliable process for delivering accurate, high-quality outcomes, whether for a specific part or feature, or for consistency across multiples of parts. Although the methodologies and materials for producing jigs and fixtures have evolved beyond the conventional metal tooling of years past, their position as a manufacturing staple remains constant due to the benefits they offer. Download Now
Overcoming Cutting Tool Challenges in Aerospace Machining
Aerospace manufacturing has always been on the cutting edge, from materials to production techniques. However, these two aspects of aerospace machining can conflict, as manufacturers strive to maintain machining efficiency with new materials by using new methods and cutting tools. 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