Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

• the most efficient way to navigate the Engineering ToolBox!

# Polyester Polyolefin Rope - Strength

## Polyester Polyolefin dual fiber 3-strand rope - minimum breaking strength and safe load.

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

(Safety Factor 12)
Weight
(in)(mm)(lbf)(kN)(lbf)(kN)(lbm/ft)(kg/m)
1/4 6 1200 5.34 100 0.445 0.016 0.024
5/16 8 1870 8.3 156 0.693 0.025 0.037
3/8 10 2700 12.0 225 1.00 0.036 0.054
7/16 11 3500 15.6 292 1.30 0.048 0.071
1/2 12 4400 19.6 367 1.63 0.062 0.092
9/16 14 5200 23.1 433 1.93 0.079 0.118
5/8 16 6100 27.1 508 2.26 0.095 0.141
3/4 18 8400 37.4 700 3.11 0.135 0.201
7/8 22 11125 49.5 927 4.12 0.180 0.268
1 24 13175 58.6 1100 4.89 0.218 0.324
1 1/16 26 14775 66 1230 5.47 0.245 0.365
1 1/8 28 16325 73 1360 6.05 0.271 0.403
1 1/4 30 19900 89 1660 7.38 0.334 0.495
1 3/8 32 21950 98 1830 8.14 0.365 0.543
1 1/2 36 28250 126 2350 10.5 0.470 0.699
1 5/8 40 32950 147 2750 12.2 0.550 0.818
1 3/4 44 36850 164 3070 13.7 0.620 0.923
2 48 48050 214 4000 17.8 0.810 1.21

### Example - Maximum Safe Mass for a 3/8" Polyester Polyolefin Rope

The relationship between mass and force (weight) can be expressed as

m = F / g                              (1)

where

F = force, weight (N)

m = mass (kg)

g = acceleration of gravity (9.81 m/s2

Maximum safe mass for a 3/8" polyester polyolefin rope where safe load is 1.0 kN can be calculated as

m = (1.0 103 N) / (9.81 m/s2)

=  102 kg

## Related Topics

• Miscellaneous - Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

## Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

## Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Temperature

oC
oF

Length

m
km
in
ft
yards
miles
naut miles

Area

m2
km2
in2
ft2
miles2
acres

Volume

m3
liters
in3
ft3
us gal

Weight

kgf
N
lbf

Velocity

m/s
km/h
ft/min
ft/s
mph
knots

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O

Flow

m3/s
m3/h
US gpm
cfm

6 24