Steel sheet and method of manufacturing a steel sheet for packaging

A method of manufacturing a steel sheet for packaging, the method comprising:

• cold rolling of a hot rolled steel sheet made of a steel having a carbon content by weight of 10 to 1000 ppm, wherein the steel of the steel sheet has a recrystallization temperature (TR),
• heating the cold-rolled steel sheet to a predetermined heating temperature (TE) for which applies:
• TR≤TE,
• wherein the heating takes place at least until the recrystallization temperature (TR) is reached at least temporarily in the presence of a nitrogen donor, as a result of which, when the cold-rolled steel sheet is heated, nitrogen diffuses from the nitrogen donor at least into a region of the cold-rolled steel sheet close to the surface and is incorporated in the region close to the surface, as a result of which the recrystallization temperature (TR) of the steel in the region close to the surface is raised by a value ΔT,
• wherein the following condition applies to the heating temperature (TE):
• TE<TR+ΔT, and
• wherein the heating of the cold-rolled steel sheet comprises at least one holding phase in which the temperature of the steel sheet is held during a holding time (tH) at an intermediate temperature (TZ), which is lower than the recrystallization temperature (TR), and the cold-rolled steel sheet is at least temporarily exposed to the nitrogen donor before the start of and/or during the holding time (tH) and, after the holding time (tH) has elapsed, the cold-rolled steel sheet is heated further until the heating temperature (TE) is reached, wherein the holding time (tH) is between 1.0 and 300 seconds.