×
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

Gate valve from A352 LCB

Gate valve from A352 LCB

Gate valve from A352 LCB

(OP)
Hello,

I have a question you might help me with.

Our company should supply Gate valve from low-temp CS A352 LCB, but customer is asking for impact test at -46°C. We have experiences with -33°C, but not such a low temp. My question is if the test should be done with energy of 17J, 27J or any other value?

Is there any standard that says what energy should be used for different temperatures?

Thank you very much for your help.

Jan

RE: Gate valve from A352 LCB


I presume you already have offered or have as a standard a description of your 'normal' offered test. If the customer then is requiring a test with other parameters, including lower temperature, it is the customers responisibillity to give you the full information of all the the test details, including procedure and acceptable results.

If not, you could not be sure to fulfill all the customers requirements.

RE: Gate valve from A352 LCB

-46C/-50F is the standard test temperature for LCB with 17J/13Ftlbs absorbed energy per the material spec. If you are working to EN specifications you will probably need to meet 27J/20Ft.Lbs. This should not be difficult if you "tune" your chemistry properly and heat treat properly.

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