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13 years 2 months ago #8575

  • mohsennazokkar
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Rating / Pressure class calculation for material

What about it? Is there a 13 years 2 months ago #3707

  • whichwayisup
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What about it?
Is there a question in there somewhere?

Do you know the effective 13 years 2 months ago #3717

  • mohsennazokkar
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Do you know the effective of allowable stress for rating calculation

Pick up this resource: http://www.pipefitter.com/NAVC​O.html It 13 years 2 months ago #3733

  • easy-e
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Pick up this resource:
http://www.pipefitter.com/NAVCO.html

It is the NAVCO Piping Datalog. Mine is pretty old but the info on pp. 17-21 should be the same. I think you are looking for wall thickness calculations and working pressures for pipe. You will find out the formulas for both the ANSI piping code (B31.1) and the ASME Boilder code, section 1. I hope this helps

Mohsennazokkar I am not sure for 13 years 2 months ago #3735

  • Calhoun
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Mohsennazokkar

I am not sure for the question but try this link. I hope it will help.

http://www.engineeringtoolbox.com/astm- ... d_742.html

Rating 13 years 2 months ago #3740

  • Minerva
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Could you please expand it abit more?
If you want to calculate what rating flange to use for a certain pressure you will refer to tables designated for this; remember there are various material groupes with different pressure tolerabilities. If the piping yield stress goes beyong 40ksi, use high tensile material.

Hope it assists.
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