×
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

How do I determine a ASTM A478 Casting pressure class?

How do I determine a ASTM A478 Casting pressure class?

How do I determine a ASTM A478 Casting pressure class?

(OP)
Hello,

I have a casting which I would like to have rated to a 600 pressure class.  The material is ASTM A487 type CA6NM.  I am running a FEA and need to input temperature and pressures to meet 600 pressure class requirements.  What temperatures and pressures do I use?

My confusion is that I can't seem to find ASTM A487 in any of the tables in ASME B16.5.  I know actual pressure change for each material.  Should I just pick the highest values (1500 psig @ -20 to 100F, 1330 psig @ 500F)?

FYI - I want to run the FEA at the temperatures above as this is the operating temperature range of the casting.

Thanks,
Ben

RE: How do I determine a ASTM A478 Casting pressure class?

If you are interested in pressure-temperature rating methods, I would highly recommend you read Annex B of ASME 16.5-2003.

RE: How do I determine a ASTM A478 Casting pressure class?

(OP)
Thanks for the advice - I've got my working pressure now.

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