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

Norsok M650 rev 4 QTR ranges of qualification

Norsok M650 rev 4 QTR ranges of qualification

Norsok M650 rev 4 QTR ranges of qualification

A Norsok M650 qualification test record holds a scope (qualification of process) and the tested and qualified thickness and weight.
In some cases a range of qualifcation is also given but in most cases this range is missing.

Can anybody inform me about the criteria that is applicable to determine this range?
In some cases I see a qtr for A182-F51(22%Cr) forging tested thickness 120mm. Does this mean that forging up to this thickness are covered by this qtr? Looks plausible to me but how is this range for tubes, plate etc.? Where can I find anything about this issue? Recently I recieved a qtr for plate 40mm. Can I use it for plate with 20mm of thickness? In this matter I do not consider the involvement of the qualifying company in this exact matter.

RE: Norsok M650 rev 4 QTR ranges of qualification

Refer to subclause 10.2 for the qualification limits. No lower limits are shown, only upper.

Steve Jones
Corrosion Management Consultant


All answers are personal opinions only and are in no way connected with any employer.

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


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