Engineering Data

ProductStrength Scale 1-5
(5 = strongest, diameter to diameter)
Elastic Elongation at Working Load %Weight Scale 1-5
(5 = heaviest, diameter to diameter)
Working Energy Absorption
Ft Lbs/Lb of Rope
Maximum Energy Absorption
Ft Lbs/Lb of Rope
Rope Average Specific Gravity
g/cc
Splice Complexity Scale 1-5
(5 = most complex)
Dielectric Leakage, New/Dry, at 100 kV AC, 2ft. Spacing, in Micro-Amperes***
(250 Max allowable)
Aracom Miniline2.90.64.01004,9061.405NA
Aracom T3.10.74.41574,4091.403NA
Aracom 1003.80.93.94268,1441.441<250
Crystalyne2.70.54.31873,4031.403<100
Double Esterlon1.42.23.92917,7111.382<20
Hy-Dee Brait0.72.72.811612,6730.933*<10
Kernmaster1.26.23.86229,7751.233>500
Lugger Line1.02.22.433011,4000.951<100
Maxibraid3.50.73.32266,3420.971<100
Maxibraid Plus2.70.63.71154,2951.183<100
Mega Max2.90.52.73188,3000.973<100
Nylon Brait1.310.02.91,42623,6801.143NA
Oceanographer’s Brait1.317.52.92,739****26,0741.143NA
Optimus ROPE1.83.54.63519,9151.381<100
PE-121.73.04.34068,7381.381<100
Phantom-121.31.02.32124,5211.401NA
Polydyne1.55.13.857611,1871.242>500
PolyPlus Braid1.13.43.13958,2281.251<100
Portland Braid1.32.04.02655,9291.382<20
Shark Byte 121.21.22.22963,8841.101NA
Shark Byte 80.43.32.747810,3651.143NA
SP-122.11.13.92925,8511.121<100
Tech-Kern2.80.73.82334,5711.443NA
Ultrex Plus2.90.53.71405,4281.183<100
Ultrex5.00.63.13188,3000.971<100
Uniline1.43.55.02625,2301.385<50
Unitrex XS 83.50.54.6NANA1.104<50
Unitrex XS Max Wear3.50.54.62476,8931.105<50
Vectrus4.30.63.82324,4461.401<100
Yalex1.73.04.540910,7001.381<100
Yalon1.17.03.579611,8711.142>2000

* Quick splice method available which reduces the break strength but also reduces the splice complexity to 1
** NA in Dielectric leakage indicates that the product is not recommended for use in dielctric situations due to the ropes potential moisture gain
***Absorbed or entrained moisture or impurities will increase a ropes conductivity dramatically
**** Oceanographers energy absorption is at a WL of 30%

Fiber Comparison Data

ProductStrength Scale
1-5
Tenacity
g/d
Specific Gravity
g/cc
Weight Scale
1-5
Average Water Absorption
% @65% RH
Melting Point
°F (©)
Elastic Elongation Scale1-5
Nylon (NY)1.59.21.142.55.0460 (240)5
Polyester (PET)1.49.21.384.30.4480 (255)3
Polypropylene (PP), Polyethylene (PE)1.06.50.931.00.0330 (165)4
Co-Polymer (PP/PE)1.17.50.931.00.0330 (165)3
HMPE* (Spectra™, Dyneema™)4.836.00.971.30.0300 (150)1
Aramid (Technora, Twaron, Kevlar)3.828.01.444.84.0**900 (500)2
Vectran (LCP)3.928.01.404.40.0625 (330)1
Zylon PBO5.045.01.565.01.3***1200 (650)1

* High Modulus Polyethylene ** Chars *** Decomposition temperature
For computing energy-absorption requirements, refer to example in “Dynamic Loading.”
For computing weight in sea water: (Wt. in Air) – (Wt. in Air)(1.03) / (Specific Gravity of Rope)

Components of Elongation

* Hysteresis refers to a recoverable portion of stretch over a period of time after a load is released.