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Table 2: Synthetic Fiber Rope Properties

Material

Rope Construction

Strength kN/cm2*

Stiffness kN/cm2*

Remarks

Nylon

braided

plaited

25

20

82

87

Dry strengths only, wet strength 10-20% less.

Polyester

braided

plaited

7-strand

parallel strand

parallel fiber

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 fiber

parallel fiber

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.

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