×
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

Which NDT method to choose?

Which NDT method to choose?

Which NDT method to choose?

(OP)
Is NDT necessary for all relief valves in oil gas application? Why is it only done for relief valves?

How do you decide which NDT method should be used?  

In the spec it says 'ultrasonic examination (UT) as an alternative to radiography for forgings will be accepted for Classes 300 and above', does it mean for class 150, ONLY radiography testing should be done?

A supplier offered liquid penetrant examination, is it acceptable?
Thanks..
 

Cutie

 

RE: Which NDT method to choose?

it depends on the material you are talking about.  Some meathods of NDT are better for certain materials.  Forms of NDT could be charpy impact testing, radiograph, Liquid Pen, mag particle.  It depends what material, what part and where the material is sourced, also what QC procedures a manufacture uses help determines if/when it is best to spend extra money on NDT

RE: Which NDT method to choose?

EngCutie,

Radiography(RT)is used to look for defects in the casting or forging material. UT would be nessecary when the component thickness is increasedbeyond where RT becomes impracticle.

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