Method for producing AlMn strips or sheets

A method for producing an AlMn strip or sheet for producing a component by soldering, said method comprising:

• producing a precursor material from a melt, said melt comprising (by weight):
• 0.3 to 1.2% Si;
• not more than 0.5% Fe;
• not more than 0.1% Cu;
• 1.0 to 1.8% Mn;
• not more than 0.3% Mg;
• a sum of Cr and Zr in the range 0.05 to 0.4%;
• not more than 0.1% Zn;
• not more than 0.1% Ti;
• not more than 0.15% Sn;
• unavoidable companion elements;
• and aluminum as the remainder;
• wherein any one of said unavoidable companion elements individually amounts to at most 0.05%;
• and all of said unavoidable companion elements collectively amount to at most 0.15%;
• and wherein the ratio of weight percent Sn to weight percent Si is not less than 0.03;
• preheating said precursor material at a preheating temperature of less than 520° C. over a dwell time of at most 12 hours;
• hot rolling said precursor material to produce a hot-rolled strip, said hot rolling comprising a final hot rolling at a temperature of at least 250° C.;
• and
• cold rolling said hot-rolled strip to produce a cold-rolled strip or sheet without intermediate annealing.