Press hardening method

A part made by a press hardening method comprising the following steps:

• a) provision of a carbon steel sheet coated with a barrier pre-coating comprising nickel and chromium, wherein the weight ratio Ni/Cr is between 1.5 and 9,
• b) cutting of the coated carbon steel sheet to obtain a blank,
• c) thermal treatment of the blank,
• d) transfer of the thermally treated blank into a press tool,
• e) hot-forming of the transferred thermally treated blank to obtain a part,
• f) cooling of the part obtained at step e) in order to obtain a microstructure in steel that is martensitic or martensitic-bainitic or made of at least 75% of equiaxed ferrite, from 5 to 20% of martensite, and bainite in amount less than or equal to 10%, wherein the carbon steel sheet of step a) is directly topped by an anticorrosion pre-coating layer, this anticorrosion pre-coating layer being directly topped by the barrier pre-coating.