Smart questions
Smart answers
Smart people
Join Eng-Tips Forums
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Member Login




Remember Me
Forgot Password?
Join Us!

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips now!
  • 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!

Join Eng-Tips
*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.
Jobs from Indeed

Link To This Forum!

Partner Button
Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.
Just copy and paste the
code below into your site.

Saver2008 (Mechanical) (OP)
29 Mar 09 23:27
Hi!!!!

I have a question about this two specifications. I want to design a little vessel with a coupling but the vessel (all in inox 304)and for a specification for coupliing for that nature corresponds SA-403 T-304, but when I saw the coupling (phisically) I saw "SA-182" marked. I checked ASTM but the difference I "found", was just that SA-182 handles low alloy carbon steel and according to inox topics, have the "same properties" with SA-403.
Please can you clarify me this, because I don get it.

Thank you so much!!

Roland
metengr (Materials)
30 Mar 09 8:02
Saver2008;
What does your statement....

Quote:

I want to design a little vessel mean?
Is this a code stamped pressure vessel or not? The difference in material specifications is this - for SA 403, this material specification is for wrought austenitic stainless steel fittings that are used in pressure piping systems and have specific requirements for NDT (nondestructive examination). SA 182 specification is for forged or rolled steel fittings for use in pressure systems.
There are indeed differences in fabrication methods and NDT requirements. You need to review both specifications side by side to understand these differences.
Saver2008 (Mechanical) (OP)
30 Mar 09 13:33
Dear Metengr,

Thank you so much. It is an "autoclave". But for calculation procedure according to ASME, it is consider as a pressured vessel, and it should be code stamped.
Well I checked composition and is the same, but i didnt check fabrication method but if I use SA-182 in pressures systems, you mean like for pressure vessels??? And what exacly specific NDT requirements do you mean with SA-403?

Thank you so much with your answer.
Have a nice day.  

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!

Back To Forum

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