| CPC D07B 1/068 (2013.01) | 3 Claims |
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1. A wire rope, comprising:
a strand that is formed by winding a plurality of metal wires, wherein:
the strand includes a core wire arranged in a center of the plurality of metal wires, and side wires that make up a remainder of the plurality of metal wires, each of the side wires being arranged on an outer periphery of the core wire,
in a transverse section of the strand, each of the side wires includes end portions positioned at opposite ends in a circumferential direction of the core wire,
each of the end portions includes a contact portion in contact with an end portion of an adjacent side wire, and a non-contact portion not in contact with the adjacent side wire,
a Vickers hardness of the contact portion is higher by 1% or more than a Vickers hardness of the non-contact portion,
a surface roughness Ra of an outer peripheral surface of each of the side wires is 0.10 μm or less,
the strand is obtained by die-drawing a twisted wire including a plurality of circular-cross-section metal wires, and
a cross-sectional width of the strand is 57.2% to 85.7%, or 42.9% to 71.4%, of a diameter of the twisted wire before the die-drawing.
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