Sisal Rope - Strength

Sisal rope 3-strand, minimum breaking strength and safe load

Sisal rope is made from the fibers of the sisal hemp plant - "agave sisalana".

sisal rope strength

Minimum breaking strength and safe load of sisal rope are indicated below.

Rope Diameter Minimum Breaking Strength Safe Load
(Safety Factor 12)
Weight
(in) (mm) (lbf) (kN) (lbf) (kN) (lbm/ft) (kg/m)
3/16 5 290 1,29 24,2 0,11 0,01 0,02
1/4 6 385 1,71 32,1 0,14 0,02 0,03
5/16 8 640 2,85 53,3 0,24 0,03 0,04
3/8 10 865 3,85 72,1 0,32 0,04 0,06
7/16 11 1120 4,98 93,3 0,42 0,05 0,07
1/2 12 1700 7,56 142 0,63 0,07 0,10
9/16 14 2210 9,83 184 0,82 0,10 0,14
5/8 16 2815 12,5 235 1,04 0,13 0,19
3/4 18 3455 15,4 288 1,28 0,16 0,24
7/8 22 4930 21,9 411 1,83 0,21 0,32
1 24 5760 25,6 480 2,14 0,27 0,40
1 1/16 26 6720 29,9 560 2,49 0,30 0,44
1 1/8 28 7680 34,2 640 2,85 0,34 0,51
1 1/4 30 7640 38,4 720 3,20 0,40 0,59
1 3/8 32 9600 42,7 800 3,56 0,46 0,68
1 1/2 36 11840 52,7 987 4,39 0,47 0,85
1 5/8 40 14440 64,2 1200 5,34 0,57 1,06
1 3/4 44 19960 75,4 1410 6,27 0,71 1,26
2 48 19840 88,3 1650 7,34 0,85 1,52

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