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Pressure Vessel Flange Calculation
2

Pressure Vessel Flange Calculation

Pressure Vessel Flange Calculation

(OP)
In the attached computer program (pg 22) there is a design calculation for the flange. Under bolting information, there is a value of 25 ksi for Material Stress Hot (Sb) and Material Stress Cold (Sa). What exactly are these values? Are they allowable stress?

RE: Pressure Vessel Flange Calculation

Yes, allowable stress of the bolts.

-TJ Orlowski

RE: Pressure Vessel Flange Calculation

Material Stress Hot = Allawable stress at design temperature
Material Stress Cold = Allawable stress at Ambient temperature
See ASME II Part. D

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