Patent ID: 7575712

Claim:
A process for producing a heating element for cooking vessels for induction cooking comprising: forming a ferromagnetic alloy having a chemical composition comprising, in percent by weight: 32.5%≦Ni≦72.5%; 7.4%≦Cr≦18% 0.01%≦Mn≦4%; C≦1%; 0≦Cu≦0.01; and the balance being iron and impurities resulting from the smelting, wherein the chemical composition further satisfies the following relationships: Cr−1.1Ni+23.25≦0%; 45Cr+11Ni≦1360; Ni+3Cr≧60% if Ni≧37.5; and Cr≧7.5 if Ni≦37.5 and forming the heating element comprising the ferromagnetic alloy, wherein the heating element has a side wall.