The basic material is wire rod, which is cold-drawn into wire of different diameters and strength grades. 
The most common grades are:

 

Rope grade

 

Wire tensile strength grades

Harness app.

 

EN API 9A Min Max Brinel Rockwell
    kp/mm2 N/mm2 kp/mm2 N/mm2 HB HRC
1570 PS 140 1370 180 1770 405/470 45
1770 IPS 160 1570 200 1960 445/470 49
1960 EIPSE (XIP) 180 1770 220 2160 470/480 51
2160 EEIPSE (XXIP) 200 1960 220 2160 480/500 52

 

Finish
The wire is either untreated (bright), galvanised or stainless. Galvanised wire gives the rope greater protection for corrosive environments. For extreme cases a stainless rope is used. Steel wire ropes can also be provided with plastic impregnation.