×
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

ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

(OP)
As per ASME IX QG-105.2, Supplementary essential variables become additional essential variables in situations where procedure qualifications require toughness testing. QW-251.2 states that Supplementary essential variables are required for metals for which other Sections specify notch‐toughness tests and are in addition to the essential variables for each welding process.

My query is whether supplementary essential variables are applicable if a client specifies the requirement of Impact Tests though it's not a requirement as per ASME B31.3.

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

Quote:

My query is whether supplementary essential variables are applicable if a client specifies the requirement of Impact Tests though it's not a requirement as per ASME B31.3.

Yes, if the engineering contract or specification agreed upon requires impact testing. An owner/user can always request additional requirements above and beyond code minimum requirements as long as they are willing to pay for it.

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

Yes,
I agree to metenger,

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

He who holds the gold gets to make the rules.

Best regards - Al

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

(OP)
Thanks Guys. ASME IX Introdiuction page states that "The toughness supplementary essential variables do not apply unless referenced by the Construction Codes". The Introduction does not indicate any reference to Client Specifications. I am a bit reluctant to apply the Impact Testing clause from the specification as the thickness range for the WPS per ASME B31.3 will become T to T+6mm where T is the qualification wall thickness.

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

If you elect not to comply with the contract you should not accept the job. You may find the customer may elect to declare the work completed as noncompliant and reject it. They may also elect to pursue civil action and seek damages for delays in their schedule. Funny how that works. The ramifications can be very painful financially and ruinous to the contractor's reputation in the business world. The Chinese manufactures are discovering the pitfalls of their well earned reputation of being under performers.

Best regards - Al

RE: ASME IX SUPPLEMENTARY ESSENTIAL VARIABLES

MALJUD2030;
Please read further in Section IX below;

(a) This Section contains requirements for the qualification
of welders, welding operators, brazers, brazing operators,
plastic fusing machine operators, and the material
joining processes they use during welding, brazing, and
fusing operations for the construction of components under
the rules of the ASME Boiler and Pressure Vessel Code,
the ASME B31 Codes for Pressure Piping, and other Codes,
standards, and specifications that reference this Section.
This Section is divided into four parts.
(1) Part QG contains general requirements for all
material-joining processes.
(2) Part QW contains requirements for welding.
(3) Part QB contains requirements for brazing.
(4) Part QF contains requirements for plastic fusing.
(b) Whenever the referencing Code, standard, or specification
imposes requirements different than those given
in this Section, the requirements of the referencing Code,
standard, or specification shall take precedence over the
requirements of this Section.

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