This example custom material is based on SA-516 Grade 70 with a more conservative allowable stress yield basis than the ASME code requires in SC II, D. Typically the allowable strength yield basis is 2/3 yield; but in this case, we are limiting the allowable stress to no more than 1/2 yield. This example is pretty simple because the product form does not affect the allowable stress and the safety factor is being increased instead of decreased (going from 1.5 on yield to 2). If the product form is welded (e.g. welded pipe) or the safety factor was being decreased, then extra considerations must be taken into account. See the Appendices in Section II, D for more information.
Click on Custom Data and pick the first menu choice:
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