B31.3 Code Issue – Non-conservative Sustained Stress

I would like to highlight an issue in ASME B31.3 that’s been sitting there underneath most of our noses for several years.¬†Depending on your interpretation of the Code (or that of your pipe stress software) this can result in significant under-prediction of sustained and occasional bending and torsional stresses at reducing intersections.¬†[Edit March 2017: this … Read more