×
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

WPQR

WPQR

(OP)
All,
One quick question:
A welding procedure normally covers a certain range of thicknesses....
Is it the same for Base metal Grade???? or any welding procedure done for example on A333 Grade 6 steels can be used for A572 Grade 50.

Many thanks,

Ak

RE: WPQR

Typically, welding procedure specifications (WPS) under an international standard (Like AWS or ASME B&PV Code, Section IX) provide information for both weld deposit thickness and base metal thickness qualified. To reduce cost and number of redundant welding procedures, there is a grouping system developed to classify similar weldability of base materials for a WPS.

RE: WPQR

Depending of the welding standard, base metals are grouped together to limit the number of qualification tests required to meet production requirements. AWS D1.1 groups them together based on carbon equivalency and similar "weldability". ASME groups the base metals by P numbers, AWS B2.1 groups them by their M number, and NAVSEA by their S number. Generally, the materials in each group, i.e., P, m, or S numbers, have similar chemistry and mechanical properties (similar, but not necessarily the same).

Best regards - Al

RE: WPQR

(OP)
Thanks All...really appreciated.

RE: WPQR

Watch out for filler metal chemical matching property with the base metal. You can never think one fits all within the same group.

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