×
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

Location of notch as per UG-84(g) for impact test specimen

Location of notch as per UG-84(g) for impact test specimen

Location of notch as per UG-84(g) for impact test specimen

(OP)
Dear respected experts of this forum.

I would like to get some insight regarding UG-84(g) of ASME Section VIII Division 1.
The words "normal to the surface" for the location of the notch confuses me. Could you please advice which is the correct location of the notch as per uploaded image?



Thanks in advance.

RE: Location of notch as per UG-84(g) for impact test specimen

A is corrected.

please study the attached illustration

RE: Location of notch as per UG-84(g) for impact test specimen

The word normal referenced above means perpendicular to the weld surface.

RE: Location of notch as per UG-84(g) for impact test specimen

I read the OP sketch to be cross sections with the weld made from the top surface and extending out of the page.
The Charpy samples in the figure posted by lslcpfcc are in orientation B in the OPs sketch.
The 'width' of the sample is to be the thickness of the weld.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Location of notch as per UG-84(g) for impact test specimen

The original post was in reference to specimen orienation stated in UG-84g in Section VIII Div 1. Normal means perpendicular to a surface of the weld.

RE: Location of notch as per UG-84(g) for impact test specimen

(OP)
Hi guys,

I have found a picture on ASME Section II Part C as shown, I guess this should be the correct orientation.



As per UG-84(g)
"Each set of weld metal impact specimens shall be
taken across the weld with the notch in the weld metal.
Each specimen shall be oriented so that the notch is normal
to the surface of the material
and one face of the specimen
shall be within 1/16 in. (1.5 mm) of the surface of the
material"

My understanding is that "normal to the surface of material" means perpendicular to the outside surface of the material. The posted picture tells otherwise.

RE: Location of notch as per UG-84(g) for impact test specimen

Be careful with using diagrams from other code book sections. You follow the words as stated so the notch is 90 degrees to the surface of the sample which means it extends across the thickness and not parallel to the outer surface. It would be sketch B.

RE: Location of notch as per UG-84(g) for impact test specimen

Sketch "B" agreed.

RE: Location of notch as per UG-84(g) for impact test specimen

OP sketch B and both of the later ones show the same orientation.
Notch is in the weld, and the direction of the notch is at a right angel to the surface of the original material.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Location of notch as per UG-84(g) for impact test specimen

Section II Part C is not applicable to UG-84(g). It applies to the manufacturer performing all weld metal impact tests when required for the weld filler metal class.

RE: Location of notch as per UG-84(g) for impact test specimen

(OP)
Thank you very much for all inputs.
I appreciate it.

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