Method for producing a hardened steel product comprising: providing a steel substrate having a base material of a hardenable steel; coating the steel substrate with an aluminum-containing precoating containing at least 85% by weight of aluminum, wherein the precoating is applied to the steel substrate with a thickness of at least 34 micrometers (μm); flexible rolling of the precoated steel substrate, wherein successive portions (a, b, c) of the precoated steel substrate are rolled out to different degrees, with rolling degrees of at least 1% and/or at most 60% starting from the initial thickness of the steel substrate, wherein through the flexible rolling the precoating obtains in thinner first portions (a) a reduced first thickness (d2a) of less than 33 micrometers, and in thicker second portions (b) a reduced second thickness (d2b) which is thicker than the reduced first thickness (d2a); working a blank from the flexibly rolled steel substrate; heating the blank such that the base material of the blank is at least partially austenitized, wherein diffusion processes take place between the base material and the precoating through the heating; and hot forming the heated blank, wherein the heated blank is formed and rapidly cooled such that a hardened steel product with coating is produced, wherein the coating is formed from the precoating through the heating and hot forming, with a first end thickness (d3a) in the thinner first portions (a) which is greater than the reduced first thickness (d2a) and is between 15 to 50 micrometers, and with a second end thickness (d3b) in the thicker second portions (b) which is greater than the reduced second thickness (d2b) and is between 30 to 60 micrometers. providing a steel substrate having a base material of a hardenable steel; coating the steel substrate with an aluminum-containing precoating containing at least 85% by weight of aluminum, wherein the precoating is applied to the steel substrate with a thickness of at least 34 micrometers (μm); flexible rolling of the precoated steel substrate, wherein successive portions (a, b, c) of the precoated steel substrate are rolled out to different degrees, with rolling degrees of at least 1% and/or at most 60% starting from the initial thickness of the steel substrate, wherein through the flexible rolling the precoating obtains in thinner first portions (a) a reduced first thickness (d2a) of less than 33 micrometers, and in thicker second portions (b) a reduced second thickness (d2b) which is thicker than the reduced first thickness (d2a); working a blank from the flexibly rolled steel substrate; heating the blank such that the base material of the blank is at least partially austenitized, wherein diffusion processes take place between the base material and the precoating through the heating; and hot forming the heated blank, wherein the heated blank is formed and rapidly cooled such that a hardened steel product with coating is produced, wherein the coating is formed from the precoating through the heating and hot forming, with a first end thickness (d3a) in the thinner first portions (a) which is greater than the reduced first thickness (d2a) and is between 15 to 50 micrometers, and with a second end thickness (d3b) in the thicker second portions (b) which is greater than the reduced second thickness (d2b) and is between 30 to 60 micrometers.