Material
Rope Construction
Strength kN/cm2*
Stiffness kN/cm2*
Remarks
Nylon
braided
plaited25
20
82
87
Dry strengths only, wet strength 10-20% less.
Polyester
braided
plaited
7-strand
parallel strand
parallel fibre
25
20
45
50
35
210
160
400
550
1000
Wet and dry strengths.
including jacket
including jacket
including jacket
Aramid
36-strand
parallel strand
parallel fibre
parallel fibre
70
65
95
90
3,300
2,100
4,300
8,000
including jacket
"
K29, inc. jacket
K49, inc. jacket
HMPE
braided
7-strand
parallel strand
55
55
65
1,500
2,000
3,000
unjacketed
including jacket
including jacket
Steel 7-strand
bridge strand
solid bar
85
110
140
6,800
14,000
21,000
6x36 IWRC
not including jacket
4340 steel
* NOTES: Approximate values, actual properties may vary widely. Cross sections based on cylindrical enclosed area including jacket where applicable. Multiply by 1430 to convert to lb/in2.