Method for manufacturing steel casts, in particular but not exclusively manganese steel, intended to obtain a wear element, comprising at least a step of preparing at least one reinforcement insert, said method comprises: - a step of preparing a mold for the cast to be manufactured, - a subsequent step of casting steel inside said mold, characterized in that said step of preparing said mold provides a sub-step of positioning said at least one reinforcement insert inside said mold in the zones corresponding to the zones of said cast coinciding with those which, in use, will be the zones of said wear element most subjected to wear, said at least one reinforcement insert comprising a substantially filiform tubular container and anchoring means in the form of appendixes provided at each end of said substantially filiform tubular container, said sub-step of positioning said at least one reinforcement insert comprising an anchoring operation in which the anchoring means in the form of appendixes of said at least one reinforcement insert is anchored to at least a perimeter wall of said mold, wherein preparing said at least one reinforcement insert provides the operations of filling said substantially filiform tubular container with a mixture of powder and/or small pieces having a base of iron and comprising at least carbon and chromium and one or more additional components selected between tungsten, molybdenum, vanadium and boron so as to form a filled substantially filiform container, and of shaping, also spatially, said filled substantially filiform tubular container to obtain the physical structure of said at least one reinforcement insert, wherein at least part of the filled substantially filiform container and said mixture of powder and/or small pieces is brought to melting conditions and melted by endothermic action of the steel cast in the subsequent step so as to weld said at least one reinforcement insert and the steel cast. - a step of preparing a mold for the cast to be manufactured, - a subsequent step of casting steel inside said mold, characterized in that said step of preparing said mold provides a sub-step of positioning said at least one reinforcement insert inside said mold in the zones corresponding to the zones of said cast coinciding with those which, in use, will be the zones of said wear element most subjected to wear, said at least one reinforcement insert comprising a substantially filiform tubular container and anchoring means in the form of appendixes provided at each end of said substantially filiform tubular container, said sub-step of positioning said at least one reinforcement insert comprising an anchoring operation in which the anchoring means in the form of appendixes of said at least one reinforcement insert is anchored to at least a perimeter wall of said mold, wherein preparing said at least one reinforcement insert provides the operations of filling said substantially filiform tubular container with a mixture of powder and/or small pieces having a base of iron and comprising at least carbon and chromium and one or more additional components selected between tungsten, molybdenum, vanadium and boron so as to form a filled substantially filiform container, and of shaping, also spatially, said filled substantially filiform tubular container to obtain the physical structure of said at least one reinforcement insert, wherein at least part of the filled substantially filiform container and said mixture of powder and/or small pieces is brought to melting conditions and melted by endothermic action of the steel cast in the subsequent step so as to weld said at least one reinforcement insert and the steel cast.