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

Related Articles


What does "CR" mean?

What does "CR" mean?

What does "CR" mean?

I was referencing ASTM 403A, and noticed the designations "WP", and "CR".  From past posts I found that "WP" stands for "Welded Pipe".  I was unable to find a definition for "CR".  What does "CR" mean?  What are the differences between WP and CR?  From what I could tell, it is the hydrostatic testing methods, and dimension standards that are different.  Are there other differences, what about advantages/disadvantages between the two?  Any help would be appreciated.

RE: What does "CR" mean?

CR= Corrosion Resistant

RE: What does "CR" mean?

It could also mean cold rolled - see the CASTI Guidebook to ASME Section II, 2000 Materials Index.

RE: What does "CR" mean?

Thanks for the responses guys.  So either corrosion resistant or cold rolled.  One is a characteristic/property, and the other sounds like a process.  I've looked at the CASTI, and I did find the abbreviation definition for "CR".  What's the major difference between "WP" and "CR"?  Any ideas.

RE: What does "CR" mean?

WP stands for "Wrought Pipe" and CR stands for "Corrosion Resistant".  These can be seamless or welded construction.


RE: What does "CR" mean?

CR Grades are separate with no class designation. They can be seamless, but they are not welded. It is covered in A 403.

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!


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