||Steels are critical for effectively all industries that form the core of human civilization. This key role motivates collaborative research efforts amongst industry, academia and national laboratories to continously improve the fundamental understanding of steel behavior, addressing at the same time current challenges to make steel production and applications more sustainable. The High-performance Steels Symposium therefore focuses on novel developments in steel design, and on new insights regarding processing-microstructure-property relationships in steels. Improved understanding of these relationship calls for multi-probe approaches that incorporate (i) conventional mechanical tests (tensile, charpy, bending, etc.) and microstructure analyses methods (SEM, EBSD, XRD); (ii) advanced characterization techniques (e.g. HRTEM, APT, and in-situ SEM/TEM/Synchrotron/neutron diffraction); and (iii) advanced modelling and computational efforts (e.g. ab initio methods, computational thermodynamics, discrete dislocation dynamics, crystal plasticity), in the spirit of integrated computational materials engineering (ICME). This symposium welcomes contributions in all of these directions, and especially those that integrate these diffrent techniques and approaches, to create a venue to discuss the future of steel design.