×
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

Difference between ASTM A/B and ASME SA/SB Materials
3

Difference between ASTM A/B and ASME SA/SB Materials

Difference between ASTM A/B and ASME SA/SB Materials

(OP)
Can anyone please elaborate on the differences between the ASTM and ASME material grades? I know that ASME SEC III calls for ASME material while ANSI B31 calls for ASTM.

RE: Difference between ASTM A/B and ASME SA/SB Materials

If you read an ASME spec it will say "identical to ASTM xxxx with the exception of X.X"
In some cases it is changing an optional test to mandatory, or something like that.

Virtually all material certified as ASME also meets the ASTM specs, but it does not always go the other direction.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

RE: Difference between ASTM A/B and ASME SA/SB Materials

2
The difference is that Section II of ASME B&PV Code reviews and determines if the relevant ASTM Specification can be accepted as is or with revisions based on construction code requirements or for code cases. In either case the designator of SA means ASME B&PV Code committee has approved it for use.

RE: Difference between ASTM A/B and ASME SA/SB Materials

The "S" in SA indicates that it is acceptable to use on pressure vessels if you're using ASME. A couple years ago we had a whole bunch of pipe that met ASTM but did not meet ASME spec. I believe it was for 106B pipe and the difference was in your allowable manganese. We had to reject something like 100 feet of pipe, called in the company and all. It was a big deal. Be careful.

RE: Difference between ASTM A/B and ASME SA/SB Materials

metengr nailed it. ASTM produces new material specifications. When the ASME Committee for materials accepts a new material for use in PV construction, they add it to the registry designated SA. They also strike old materials from registry such as SA7 SA212 etc.

API510,API570,API653,API577,API571,
API580, NBIC AI. A.S. Eng, BSME

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