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Properties of Rope Materials

Select:    Overview   Materials   Rope Properties 

Properties of Rope Materials

The values below were mostly obtained from Barry Cordage's Document # 080315E (Technical Properties of Synthetic Fibres) and were obtained from each manufacturer's data in the public domain. Like Barry, we make no representation as the exactness of the data. If you have additional or updated information, please Contact Us.

Aramid HMPE LCAP PBO Poly-
amide
Poly-
ester
Poly-
propylene
Poly-
ethylene
Names Kevlar®
Technora®
Twaron®
Dyneema®
Spectra®
Vectran® Zylon® Nylon®
Perlon®
Dacron®
Terylene®
Trevira®
Poly-
propylene,-
"Poly"
Poly-
ethylene
Tens. Strength
(kg/mm2)
360 265 310 *Est 330 *Est 100 115  60 *Est  40 *Est
Elongation
at Break
3.4% 3.8% 3.3% 2.8% 18 - 24% 10 - 17% 13 - 17% 20 - 24%
Tenacity
kg/mm2
250 - 400 360 230 400 90 - 95 110 50 - 75 ? ? ?
Spec. Gravity
g/cm3
1.44 0.97 1.40 1.52 1.14 1.40 0.91 0.93
Melting Point
oC
Carb* 140 - 150 280 - 330 Carb* 215 - 260 225 - 240 165 - 175 135
Modulus
GPa
140 105 100 180 3.5 15 5 5 *Est
Creep
Under Load
Hardly
Meas-
urable
At High
Loads
Immeas-
urable
Immeas-
urable
Slight
Under
Load
Hardly
Meas-
urable
At High
Loads
At High
Loads
Ultra Violet
Resistance
Limited Excellent Limited Limited Good Excellent Fair Fair
Resid. Knot
Strength
30% 50% 50% 50% 50% 50% 50% 50%
*Est = Estimate derived from comparable values - especially for Polyethylene.
*Carb = Carbonizes before melting

Select:    Ropes Overview   Rope Materials   Properties of Rope Materials 

Disclaimer: Any activity that involves ropes is potentially hazardous. Lives may be at risk - possibly your own. Considerable attention and effort have been made to ensure that these descriptions are accurate. However, many critical factors cannot be controlled, including: the choice of materials; the age, size, and condition of ropes; and the accuracy with which these descriptions have been followed. No responsibility is accepted for incidents arising from the use of this material.

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