×
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!

*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

Flange calculation as per ASME VIII div.1

Flange calculation as per ASME VIII div.1

Flange calculation as per ASME VIII div.1

(OP)
My problem is if I must consider the flange thk corroded or not.
Many thanks for Your help
Replies continue below

Recommended for you

RE: Flange calculation as per ASME VIII div.1

You had to add corrosion allowance to the thk required by calculation.
See Appendix E for suggested good practice regarding corrosion allowance.

RE: Flange calculation as per ASME VIII div.1

Also see ASME SecVIII Div1 UG-25

RE: Flange calculation as per ASME VIII div.1

I suppose you are speaking about the flange thickness t, as of course you should deduct the corrosion allowance on neck thickness.
Personally I consider that corrosion in the flange may take place only up to the inner diameter of the gasket, so that in my opinion the effect of that corrosion may be neglected.
Consider also that if you have a raised face (and of course you shall not include the raised face thickness into the flange thickness for calculation), then you may assume that corrosion will only consume the raised face.
Moreover, as always, the answer could depend also on how much corrosion allowance is to be provided. In highly corrosive conditions(CA>3 mm) it may be wise to consider a corroded flange thickness (but still using the raised face, if any, as a kind of 'consumable').

prex

http://www.xcalcs.com
Online tools for structural design

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



News


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