×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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

How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

(OP)
Hi,

I am a Mechanical Engineer presently working on Piping Specifications. This is a new field for me as a result, I got to do a lot of reference through books and online.

The piping Specification I am working on shows a list of Pipe fittings e.g. Elbow Long Radius, Tee, Reducing Tee, Concentric Tee etc. It says from sizes 2"-36", Wall thickness/Class as per ASME B16.9

How do I calculate the Wall thickness or find out the Class?
Material - CU/NI 90/10(UNS C7060X) EEMUA 146
End Connection- Butt weld

Hoping to hear from you soon.

Thanks & Regards
Rpm

RE: How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

B16.9 does not provide a method for calculating thickness, it provides fittings rated the same as matching straight seamless pipe.  You calculate the required thickness for the straight pipe per the appropriate Code (e.g. ASME B31.1, ASME B31.3, etc.) and pick matching fittings.

RE: How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

rpm8,

In order to specify the pipe fittings as per ASME B16.9, you need to know the following (atleast)
- Material of construction ( ASTM or equivalent grade)
- nominal size NB
- schedule
 If I understand your problem correctly, you do not know the schedule of the pipe fittings. In that case, it would not be wrong to use the fittings having the same schedule as that of the corresponding PIPES where these fittings are going to be used. ( I presume, the "Pipe" specification available with you, has the 'schedule' metioned in the specification)

Another option is to actually calculate the wall thickness as mentioned by "B16.9 answer" and select the suitable 'schedule'.

Hope this helps.

Pras  

RE: How to calculate Pipe/Fitting Wall thickness as per ASME B16.9

B16.9 is a standard which is accepted by some Codes with out requirement of providing design calculations.  If you design flanges or pipe fittings calculations are required for proof.  Use the design calculations of the referencing Code.

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