×
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

Hello, I am trying to work out w

Hello, I am trying to work out w

Hello, I am trying to work out w

(OP)
Hello,

I am trying to work out where in ASME B31,3 I can get the minimum required impact values for charpy-v testing. I have looked in table A-1(m). my material is P10h Group 1 (25%DSS). I see the minimum temperature is -50C then impact testing is required. I have to test my welds to -60C.
so my question is

1. is there a table that will tel me the impacts value in Joules that I need to achieve at -60C for the charpy-v test to be a pass. I have found one table but for material in P 10H it only give a lateral expansion of 0.38mm but not requirements for absorption values in joules. Do I need to look in ASTM A370?

if the design temperature in -45c to + 80 do you think it makes and scene to be told to test to -60C?

RE: Hello, I am trying to work out w

The measured test values may be the energy absorbed, the percentage shear fracture, the lateral expansion opposite
the notch, or a combination thereof. See more in sa-370

In your example the lateral expansion is required.

Regards


RE: Hello, I am trying to work out w

(OP)
thank you very much r6155. So if -51C is the MDMT for duplex 22%Cr. where in B31.3 do I find information on what temperature to start impact testing. -50 in the transformation temperature but at what temperature do you have to preform impacts at,+20, 0, -1, -10, -25? cheers

RE: Hello, I am trying to work out w

See General Note (6) in Table A-1M B31.3 2020

Regards

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