Abstract: A process for manufacturing an elongated steel element for reinforcing rubber products includes forming, on an elongated steel element, a coating of a ternary or quaternary alloy of copper-M-zinc, where M is one or two metals selected from cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum; drawing the elongated steel element in an aqueous lubricant containing a phosphorus compound and nitrate; and twisting two or more of the elongated steel elements into a steel cord. A copper content inside the coating is 58 to 75 wt %. A content of the one or two metals inside the coating is 0.5 to 10 wt %. A final reduction in a diameter of the elongated steel element occurs during the drawing step. The phosphorus compound is present on and/or in the coating in an amount of 0.3 to 1 mg/m2 of the coating, as measured via an Inductively Coupled Plasma technique.

Abstract: An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary alloy or quaternary alloy coating of copper-M-zinc. M is one or two metals selected out of the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight percent to 75 weight per cent. The content of the one or two metals inside said coating ranges from 0.5 weight percent to 10 weight percent. The remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. Phosphorus is present on and/or in the coating in an amount of more than 1 and less than 4 milligram per square meter of the coating. The coating further comprises one or, ore compounds which complex with the copper in the coating to form an insoluble film on its surface. Good results are obtained for steam ageing and cured humidity adhesion.

Abstract: A process for manufacturing an elongated steel element for reinforcing rubber products includes forming, on an elongated steel element, a coating of a ternary or quaternary alloy of copper-M-zinc, where M is one or two metals selected from cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum; drawing the elongated steel element in an aqueous lubricant containing a phosphorus compound and nitrate; and twisting two or more of the elongated steel elements into a steel cord. A copper content inside the coating is 58 to 75 wt %. A content of the one or two metals inside the coating is 0.5 to 10 wt %. A final reduction in a diameter of the elongated steel element occurs during the drawing step. The phosphorus compound is present on and/or in the coating in an amount of 0.3 to 1 mg/m2 of the coating, as measured via an Inductively Coupled Plasma technique.

Abstract: An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary alloy or quaternary alloy coating of copper-M-zinc. M is one or two metals selected out of the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight percent to 75 weight percent. The content of the one or two metals inside said coating ranges from 0.5 weight percent to 10 weight percent. The remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. Phosphorus is present on and/or in the coating in an amount of more than 1 and less than 4 milligram per square meter of the coating. The coating further comprises one or, ore compounds which complex with the copper in the coating to form an insoluble film on its surface. Good results are obtained for steam ageing and cured humidity adhesion.

Abstract: An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary or quaternary alloy coating of copper-M-zinc. M is one or two metals selected from the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight percent to 75 weight percent, the content of said one or two metals inside the coating ranges from 0.5 weight percent to 10 weight percent, the remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. The phosphorus is present on and/or in the coating in an amount ranging from 0.3 milligram per square meter to 1 milligram per square meter of the coating. The coating further lacks triazole residues. Good results for under cure adhesion have been obtained. Furthermore, a corresponding method for manufacturing such an elongated steel element is disclosed.