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Participant

Join Date: Mar 2010
Posts: 1

p11

03/26/2010 7:58 AM

what is the difference between p11.31,91 types of materials

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Guru
Engineering Fields - Instrumentation Engineering - New Member

Join Date: Dec 2009
Location: San Antonio, TX USA
Posts: 844
Good Answers: 29
#1

Re: p11

03/26/2010 8:22 AM

Look here.

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Commentator
Engineering Fields - Piping Design Engineering - New Member

Join Date: Apr 2010
Posts: 66
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#2

Re: p11

04/28/2010 6:50 AM

They are different grades in A-335 "Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service" Go through A-335 to see the difference in Chemical Composition & Mechanical Properties of these three. Regards, Ashfaq Anwer http://forums.thepetrostreet.com

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