Steel wire rope for conveyor belt

A method for producing a steel wire rope for conveyor belt, comprising:

• selecting steel wires comprising 0.70% to 1.00% of carbon, 0.30% to 0.90% of manganese, 0.15% to 0.50% of silicon, less than 0.03% of sulfur, and less than 0.03% of phosphorus, wherein the percentages being percentages by weight;
• pickling, rinsing, drying and phosphatizing the steel wires together to remove impurities and oxides from a surface of the steel wires;
• drawing the steel wires using a straight line drawing machine;
• heat treating the drawn steel wires;
• performing hot-dip galvanization to coat a zinc layer on the heat-treated steel wires to obtain semifinished steel wires;
• drawing the semifinished steel wires into finished steel wires;
• winding the finished steel wires using a first tubular strander to obtain a plurality of external steel wire strands;
• and
• winding a central steel wire, a steel wire layer externally wound on the central steel wire, and the plurality of external steel wire strands into a line contact steel wire rope in one step using a second tubular strander, wherein a pay-off reel in the second tubular strander is twice the size of a pay-off reel in the first tubular strander, wherein a lay pitch of the steel wire rope is equal to that of the steel wire layer externally wound on the central steel wire.