Answer:
The steel grade used is in Window 1.1 General Data of the CRANEWAY program (not in the RSTAB 8 user interface). The list contains the steel grades, depending on the selected standard.
Steel St 37 can be selected if you set design standard "DIN 4132" (see Image 01).
If EN 1993‑6 is set, it is also possible to create your own user-defined material and use it for the design (see Image 02).
