×
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

SA182 material used for ASME Sect.III, ND valves

SA182 material used for ASME Sect.III, ND valves

SA182 material used for ASME Sect.III, ND valves

(OP)
Dear all,

I am asking for your support in trying to understand which is the right approach in using the material specification SA182 for construction of nuclear valves.

- According to SA 182: "4.4 The material shall be forged as close as practicable to the specified shape and size."
- According to ASME Sect. III, ND-2124 "Material Size Ranges and Tolerances":
(a) Material outside the limits of size or thickness given in any specification in Section II may be used if the material is in compliance with the other requirements
of the specification and no size limitation is given in this Subsection. In those specifications in which chemical composition or mechanical properties are indicated to
vary with size or thickness, any material outside the specification range shall be required to conform to the composition and mechanical properties shown for the nearest
specified range [NCA-3856].
- according to ASME Sect. III, ND-4211 "Cutting":
Materials may be cut to shape and size by mechanical means such as machining, shearing, chipping, or grinding, or by thermal cutting.

My question is:
Am I allowed to use Forged bars (SA182) long of 8000 mm (eg), cut it in 4 pieces and make the plugs? Or do I have to order other forged bars at dimensions "as close as possible to the plug size"?

Thank you!


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