Re: But why? The question of ASTM A312-TP321

From: <M.>
Date: Wed Mar 17 2004 - 00:39:00 EST

Dear Friends;
I am not an expert in such subject, but I wanted to reform the question. How a material can have two different strengths depending on the thickness?. My knowledge tills me that strength is a constant whatever the dimensional changes of an element.

Regards
Maged A. Tageldin
Sr. Mechanical Engineer
SETE Technical Services S.A.

• Original Message -----
  From: chenysh
  To: <a href="/group/PipingDesign/post?postID=Wf_2NJjwvIjw0wn1ErV4aq9VpebWkJ41eVeEqfpZB1PZ4qpN2wyR1hz19tYrCbGcrYEsfeAbGfwaTjC8zuq-mJtN">PipingDesign@yahoogroups.com</a>
  Sent: Wednesday, March 17, 2004 3:39 AM
  Subject: [PipingDesign] But why? The question of ASTM A312-TP321
  

Dear all experts,
In the Standard of ASTM A312, I have a doubt about the material TP321.
As the Standard described, The Tensile Requirement of this material, t<3/8 in,
is 75ksi; t>3/8in, is 70ksi. But in the Old Edition, there is no these differences.

Who can give me a explain.
Thanks for your any coments.

regards,

ChenYueshuang

---

PipingOffice - Excel Spreadsheets for Piping Calculations
<a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>

---

Main site: <a href="http://www.pipingdesign.com">http://www.pipingdesign.com</a>

Yahoo! Groups Sponsor
ADVERTISEMENT

---

Yahoo! Groups Links

a.. To visit your group on the web, go to:
<a href="http://groups.yahoo.com/group/PipingDesign/">http://groups.yahoo.com/group/PipingDesign/</a>

b.. To unsubscribe from this group, send an email to:
<a href="/group/PipingDesign/post?postID=mQdiyPPrQR3l4adeW-YT8CMlYe6ZFSs4Nb8FMyCOkUgnWcMX4-Gm9uaVV9amIgiixMzg-g--o_vIzESmPuzbVZ3YFo5bQceFRzjO7Owh11A">PipingDesign-unsubscribe@yahoogroups.com</a>

c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.

[Non-text portions of this message have been removed] Received on Wed Mar 17 00:39:00 2004