1 2 rope strength 19 2 360 1 60 0 048 0 071 1 2 12 5670 25 2 473 2 10 0 063 0 094 9 16 14 7200 32 0 600 2 67 0 080 0 119 5 8 16 8910 39 6 743 3 30 0 099 0 147 3 4 18 12780 56 8 1070 4 76 0 143 0 213 7 8 22 17280 76 9 1440 6 41 0 195 0 290 1 24 22230 98 9 1850 8 23 0 253 0 377 1 1 16 26 25200 112 2100 9 34
Written by Kaylee Keech Published on Mar 16 2023 Rope strength depends on the rope thickness materials how it is woven and how you handle it A strong rope like nylon can hold heavy loads without breaking and resists the elements Ropes may be braided plaited or twisted how a rope is woven affects its strength Rope Diameter Minimum Breaking Strength Safe Load Weight in mm lb f kN lb f kN lb m ft kg m 1 4 6 4 5480 24 4 1100 4 89 0 11 0 16 5 16 8 8520 37 9 1700 7 56 0 16 0 24 3 8 9 5 12200 54 3 2440 10 9 0 24 0 36 7 16 11 5 16540 73 6 3310 14 7 0 32 0 48 1 2 13 21400 95 2 4280 19 0 0 42 0 63 9 16
1 2 rope strength
1 2 rope strength
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High Strength Polypropylene Rope Easy Sourcing On Made in China
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Good Strength PP Rope Polypropylene Rope For Fishing And Mooring Buy
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Minimum Breaking Strength MBS to Working Load Limit WLL WLL for Very Conservative MBS 10 WLL for Standard Conservative MBS 5 Denver Rope Selection WLL for Less Conservative MBS 3 WLL Engineered Calculation MBS Tensile Strength 2 5 X 1 57 2 X 900 5 546 pounds of breaking strength Knots and splices will reduce the breaking strength of a line by as much as 50 to 60 percent The weakest point in the line is the knot or slice However a splice is stronger than a knot Just being able to calculate breaking strength doesn t give one a safety margin
NFPA 1983 2012 Life Safety Rope Performance Requirements Technical Use T previously Light Use L 3 MBS of not less than 20 kN 4 496 lbf Minimum elongation of not less than 1 at 10 of the breaking strength Maximum elongation of not more than 10 at 10 of the breaking strength Tensile Strength vs Working Load Tensile strength is the average strength of a new rope under laboratory conditions This is determined by wrapping the rope around two large diameter capstans and slowly tensioning the line until it breaks Some manufacturers refer to this as Breaking strength
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Wire rope weights and minimum breaking force Form No 1160 ph 1 816 270 4700 info wirecoworldgroup unionrope 2 1 8 221 244 8 35 244 8 9 2 1 4 247 272 9 36 272 10 0 2 3 8 274 10 4 increasing rope stability strength The tensile strength is the load at which a new rope tested under laboratory conditions can be expected to break Rope strength is the approximate average for new rope tested under ASTM test method D 6268 To estimate the minimum tensile strength of a new rope reduce the approximate average by 20
2 1 16 3 16 2 5 64 1 4 3 3 32 5 16 3 7 64 11 32 4 1 8 3 8 4 9 64 7 16 5 5 32 1 2 5 11 64 17 32 6 3 16 5 8 7 7 32 11 16 8 1 4 3 4 9 9 32 7 8 10 5 16 1 12 3 8 1 1 8 14 7 16 1 1 4 16 1 2 1 1 2 18 9 16 1 3 4 20 5 8 2 3 4 2 1 4 7 8 2 3 4 1 3 1 1 8 3 1 2 1 1 4 3 3 4 1 5 16 4 Rope Diameter Minimum Breaking Strength Safe Load Safety Factor 12 Weight in mm lb f kN lb f kN lb m ft kg m 1 4 6 1125 5 00 93 8 0 417 0 01 0 02 5 16 8 1710 7 61 143 0 634 0 02 0 03 3 8 10 2430 10 8 203 0 90 0 03 0 04 7 16 11 3150 14 0 263 1 17 0 04 0 05 1 2 12 3780 16 8 315 1 40 0 05 0
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1 2 rope strength - 1 2 Spectra Dyneema 12 Strand Spectra and Dyneema ropes are among the strongest ropes in the world The ropes are not only excellent in water and in heavy UV conditions but they are also up to 15 times stronger than steel pound for pound