US Patent 7195680 Soft magnetic alloy for clock-making

The invention relates to a soft magnetic alloy with the following composition in wt. %: 28%≦Ni≦34%, 0%≦Co≦4%, 0%≦Cu≦4%, 1%≦Cr, 0%≦Mo≦8%, 0%≦Nb≦1%, 0%≦Mn≦2%, 0%≦V≦5%, 0%≦W≦5%, 0%≦Si≦4%, 0%≦Al≦4%, 0%≦C≦0.4%, optionally one or several elements selected from magnesium and calcium the content of which is such as to remain below 0.1%, the rest being iron and impurities from production. The chemical composition furthermore satisfies the following relationships: 180.5≦6×Ni2.5×(Cr+Mo+V+W+Si+Al)+4×(Co+Cu)≦197.5 et Co+Cu≦4%. The invention relates to the use thereof for production of a stator for use in a motor for clock-making.