ABSTRACT
The statistical evaluation of the yield strength led to coefficient of variations mainly between 0.05 and 0.07. These results are in good agreement with data from literature (Faber et al., 2001). The ratio from mean values to nominal value depended strongly on the steel grade: for S235 it was 1.40, for S275 between 1.20 and 1.32, for S355 between 1.12 and 1.28, for S460 between 1.08 and 1.13. Therefore, for low steel grades already the ratio from mean value to nominal value was significantly higher than the overstrength factor of 1.25 proposed in EN1998-1.
