Cooking vessel comprising a base made of a multilayer material and a side of the multilayer material and article wall.

摘要

Cooking vessel comprising a base made of a multilayer material and a side wall, said multilayer material comprising in succession from the outside of the container into the vessel: an outer part, having a thickness e eE which consists of a layer of a ferromagnetic alloy having a Curie temperature of between 30 and 350 ° C and thermal expansion coefficient greater than or equal to 6, 5u10-6 K-1, whose chemical composition comprises, by weight percent: 32: 5 % Ni-5: 5. 72, 5% 5% Cr 18% 0, 1% Mn 0, 5% C = 1% optionally one or more elements chosen from Mo, V, Co, Cu, Si , W, Nb and Al, the sum of the contents of these less than or equal to 10% elements, the balance being iron and impurities resulting from the melting and satisfies the chemical composition the following relationships: Cr-1, 1Ni + 23, 25 = 0% 45Cr + 11Ni 1360 NI + 3CR = 60% if Ni = 37, 5 Cr _ = 7, 5 if Ni 37, 5 inserted optional mind said layer of ferromagnetic alloy between two layers of austenitic stainless steel, then a core, having a thickness e eC, comprising at least one layer selected among aluminum, aluminum alloy and copper, and optionally an inner part having a coefficient of greater than or equal to 6 thermal expansion, 5u10-6 K-1 and possibly being covered with a non-adhesive or anticorrosive coating.