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Anonymous Poster

P Number and S Number

01/10/2010 2:08 PM

What is difference between P Number and S Number ?
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sue
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Technical Fields - Technical Writing - New Member

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Good Answers: 83
#1

Re: P Number and S Number

01/10/2010 2:17 PM

Do you mean Primary and Secondary waves? If so....
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Anonymous Poster
#2

Re: P Number and S Number

01/10/2010 11:40 PM

Material P Number and S Number
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Anonymous Poster
#3

Re: P Number and S Number

01/11/2010 1:15 AM

Refer ASME Sec IX Article IV (QW400- Welding data)

P-Numbers (ASME base materials)

S-Numbers (other materials)

F-Numbers (grouping of filler metals)

A-Numbers (weld metal chemical analysis).
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Anonymous Poster
#4
In reply to #3

Re: P Number and S Number

01/11/2010 1:40 AM

Also it may be added that

P Numbers are for materials adopted for use by ASME for code construction.
S numbers for materials that are acceptable as per B31 Code for Pressure Piping (or by selected code cases. However these are not included in ASME BPV section II (Material Specification)
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Anonymous Poster
#5

Re: P Number and S Number

01/11/2010 3:02 AM

Thanks a Lot
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