Yield strength range of reinforcing steel for the validity of design and detailing rules
Eurocode 2 part 1-1: Design of concrete structures 3.2.2 (3)P
The application rules for design and detailling in this Eurocode are valid for a specified yield strength range, fyk = 400 to 600 MPa.
Recommendation
The upper limit of the yield strength fyk within this range for use in a Country may be found in its National Annex.