Hello Mike, here are the steps to reproduce the issue: create a new project; choose B31.1 (2012) code and leave all the defaults; create a new segment: 6'' SCH40 A106B pipe; assign an internal pressure of 350 psi; draw just 2 runs (L=5 ft) with a bend in between, anchor the extremities; select all and assign soil properties: leave all the default, click on "Soil Overburden Loads" and accept all the defaults (don't insert surface loads as it is irrelevant for the sake of our analysis): a value of f=1289 psi should appear on the Soil Properties dialog; select a non-linear analysis; check the option for displaying the circular wall bending stresses on code compliance report under "Adams et al." tag of buried pipe results option; run the analysis and open the report checking "Code Compliance" only; the allowable is correctly compared to f=1289 psi for the circular bending stresses; NOW go to general properties and assign SIEURO units; if you select all and check the soil properties, you can see, the value of f is given in "N/mm" which is not a stress (I guess this should be "MPa"); run the analysis and check the output report: the value of f is still 1289 (this time, MPa) and, of course, check against the allowable (in MPa) fails. Here is the example model I used: https://www.dropbox.com/s/f9kbl5d1bvxvb4x/buried_pipe.dat I hope this informations is enough for you to reproduce the problem. Ask me if you need further informations. Thank you a lot and regards Lorenzo
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