Hi,
There is a bug in Revit regarding unit conversion in concrete material physical properties. When project units for structural->stress switched to Ton force per square meter (tf/m2), those values with this unit are converted wrong. Please see the screenshots presenting the issue.
The correct values for various properties are as follows:
Young's Modulus: 29910.0 MPa should be 3049971.1 tf/m2 however printed as 3362017.7 tf/m2
Shear Modulus: 12463.0 MPa should be 1270872.3 tf/m2 however printed as 1400896.9 tf/m2
Conc. Compression: 35 MPa should be 3569.0 tf/m2 however printed as 3934.1 tf/m2
This issue is present for 2016 version, I hope development team will fix the bug with a fix soon.
Have a nice day.
