The invention relates to a high-performance duplex
stainless steel wire rope alloy material and a preparation method thereof, and belongs to the technical field of steel
alloy materials. The duplex
stainless steel wire rope comprises the following components in percentage by
mass: less than or equal to 0.03% of C, less than or equal to 0.03% of S, less than or equal to 1.0% of Si, less than or equal to 1.0% of Mn, less than or equal to 0.003% of P, 23.5-24.5% of Cr, 4.5-5.5% of Ni, 0.7-1.4% of Mo, 0.7-3.0% of Cu, 0.10-0.20% of N, 0.005-0.20% of
rare earth Ce and the balance of iron and inevitable impurities. The preparation method comprises the following steps of preparing a steel billet by adopting a medium-frequency and AOD
smelting process; the billets are subjected to a hot rolling process to prepare duplex
stainless steel wire rods with different diameters, and the wire rods are subjected to processes such as acid
pickling, repeated cold drawing and annealing to prepare semi-finished wire rods; and the semi-finished wire is subjected to stranding and
rope combining, and the high-performance duplex stainless steel finished steel
wire rope is obtained. The
alloy material has excellent cold workability, strength,
fatigue resistance and
corrosion resistance, has remarkable popularization value, is particularly suitable for being used as maritime work steel, and can serve in
moisture and salt
corrosion environments.