×
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

Source for 15lbs Impact requirement

Source for 15lbs Impact requirement

Source for 15lbs Impact requirement

(OP)
Hi,
In the BPV world, working with CMn steels you are often confronted with values as 15 lbs av. impact requirement with one testvalue not below 10lbs. I realised not to know for sure where these values origine from.
If you do, please let me know.

Thanks in advance.

Weldpartner

RE: Source for 15lbs Impact requirement

It should be in the appropriate ASTM specification.

I2I

RE: Source for 15lbs Impact requirement

(OP)
Hello Insult2Injury,

Thanks for your response. Ofcourse you're right.

Best Regards,

WeldPartner.
 

RE: Source for 15lbs Impact requirement

The CVN impact value requirements originated in various Codes of Construction, as well, in this case ASME B&PV Code, Section VIII, Div 1.

RE: Source for 15lbs Impact requirement

(OP)
I followed the advise and I found indeed impact values, but..not for ASTM A106. Are there maybe referenced sources, from which an impact requirement of 15 lbs min. for ASTM A106 Gr B appears?

Thanks in advance.

 

RE: Source for 15lbs Impact requirement

(OP)
Hello,

The answer reached me already: ASME VIII Div 1 UG 84 gives minimum charpy impact test requirements, for steeltypes with different yield strengths.

Please let me know if you have additional info,

Best regards.

RE: Source for 15lbs Impact requirement

WeldingPartner, various general material specs can list other values, such as in SA-20.

Specs for impact tested materials such as SA-350 will have their own values as well.

Otherwise, UG-84 is it.

Regards,

Mike

RE: Source for 15lbs Impact requirement

The 15 ft-lb criteria came from 1940s and 1950s research on brittle fracture related to the Liberty Ships built during WWII.

Joe Tank

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