Mold (1) for fabrication of an ingot by cooling and solidification of a mass of molten metal includes a wall (2) and an opening (3). The wall defines a bottom (4) and an inner surface (5) of which a part (S), the cooling surface, is able to evacuate all or part of the thermal energy released by the mass of metal during cooling and solidification. The wall incorporates at least one shaped element (6,7,8) to form at least one locking element, a stacking element or a handling element on the ingot. The cooling surface includes at least one element with a flat surface (Si) forming all or part of the bottom of the mould. At least one point (C) exists on a plane (Pi) tangent to each surface such that all the right segments (D) connect all points (R)of the cooling surface to the point (C) passing uniquely to the inside of the mold and the total area of the element(s) of the surface (Si) is at least equal to 10 % of the cooling surface. An independent claim is also included for the fabrication of a metal ingot using this mold.
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