How is the allowable stress calculated under the exp operating condition?
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For a pipe material I analyzed recently, the allowable stress is 115 MPa; however, the calculated allowable stress under the exp condition is 265.2 MPa. I think this calculated value is a bit too high. Could you all tell me exactly how this allowable stress is determined?
In specification B31.3, the calculation formula is 1.25(SH) + 0.25*SC
Well, thank you. I checked the standards and did the calculations; using f equal to 1.2, the result is around 200 or so. .