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


NACE TM0177, FPBT at 90% AYS

NACE TM0177, FPBT at 90% AYS

NACE TM0177, FPBT at 90% AYS

Dear folks,
Did anybody have any issue with SSC test as per NACE TM0177 for high thickness plate more than 100 mm? The plate manufacturer is saying achieving FPBT at stresses 90% of Actual yield stress is not possible as per their experience.
This is a NACE requirement, is that possible and deviate from the 90% AYS and agreed on a lower value?
How practical and achievable is 90% AYS?


RE: NACE TM0177, FPBT at 90% AYS

try to imagine the type of device needed to stress a 100mm thick steel plate sample in bending mode (4PB) up to 90%YS:
It is not practicable !! the loading device that would be used to stress your specimen would be far too hudge (and expensive) and you won't be able to immerse it into any lab TM0177 solution.

We were using loaging device for 30mm full thickness plate at maximum, these loading devices were already very big (300x150x150mm)

better use another loading configuration such as tensile SSC test (also described in TM0177) of tensile specimen sampled in the plate for 100mm thick plates.
sampled specimen can be stressed in tension by a tensile machine or by a compressed spring.


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