The present invention relates a press hardening method comprises the following steps: A. the provision of a steel sheet coated with a pre-coating being directly topped by a hydrogen barrier pre-coating, B. the batch annealing of the pre-coated steel sheet to obtain a pre-alloyed steel sheet, the cooling after the batch annealing being performed at a speed of 29.0 °C.h-1 or less, C. the cutting of the pre-alloyed steel sheet to obtain blank, D. the thermal treatment of the blank to obtain a fully austenitic microstructure in the steel, E. the transfer of the blank into a press tool, F. the hot-forming of the blank to obtain a part, G. the cooling of the part obtained at step F) in order to obtain a microstructure in steel being martensitic or martensito-bainitic or made of at least 75wt.% of equiaxed ferrite, from 5 to 20wt.% of martensite and bainite in amount less than or equal to 10wt.%.