×
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

hardness testing

hardness testing

hardness testing

(OP)
Can you do hardness tests on P1,P3,P4,P5 and nickle piping and tell them apart from the hardness results obtained?

RE: hardness testing

Only Nickel-base piping can be sorted and this would be using a simple magnet, in lieu of hardness testing.

Beyond this, hardness testing will not provide any information relative to sorting the Cr-Mo pipe alloys. You need to sort these alloys by chemical analysis using a portable PMI device.
 

RE: hardness testing

(OP)
what about the carbon steel-P1.
please explain the magnet method on the nickle.

RE: hardness testing

The nickel-base piping is typically non-magnetic. Hold a standard magnet against the bare pipe surface. If the magnet does not stick to the pipe surface, it is probably your nickel-base alloy. Also note, a non-magnetic pipe could indicate an austenitic stainless steel as well, however, you did not mention this as a possibility in your original post.

RE: hardness testing

The problem with trying to sort the steel pipes is that the expected hardness ranges of each of those alloys will largely overlap each other.

Aaron Tanzer
www.lehightesting.com

RE: hardness testing

Gotta use an Alloy Analyzer -- X-ray Fluorescence 'Gun' [Niton is the best-known].  Going rate in central USA is about $250-$300 per day, with a tech to run 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