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

# Polypropylene Fiber Ropes - Strengths

## Polypropylene fiber 3-strand and 8 strand rope - minimum breaking strength and safe load.

Polypropylene rope is made of from monofilament or film polypropylene.

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

Polypropylene Fiber Ropes - Strengths
(Safety Factor 12)
Weight
(in)(mm)(lbf)(kN)(lbf)(kN)(lbm/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 0.07
9/16 14 4590 20.4 383 1.70 0.06 0.09
5/8 16 5580 24.8 465 2.07 0.07 0.11
3/4 18 7650 34.0 638 2.84 0.10 0.15
7/8 22 10350 46.0 863 3.84 0.14 0.21
1 24 12825 57.0 1070 4.76 0.18 0.27
1 1/16 26 14400 64.1 1200 5.34 0.20 0.30
1 1/8 28 16000 71.2 1330 5.92 0.23 0.34
1 1/4 30 19350 86.1 1610 7.16 0.28 0.41
1 3/8 32 21150 94.1 1760 7.83 0.30 0.45
1 1/2 36 27350 122 2280 10.1 0.39 0.59
1 5/8 40 31950 142 2660 11.8 0.46 0.68
1 3/4 44 36900 164 3080 13.7 0.53 0.79
2 48 46800 208 3900 17.3 0.69 1.03

### Example - Maximum Safe Mass for a 3/8" Polypropylene Fiber 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" polypropylene fiber rope where safe load is 0.9 kN can be calculated as

m = (0.9 103 N) / (9.81 m/s2)

=  91.7 kg

## Related Topics

• ### Miscellaneous

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

## Related Documents

• ### Bollard Forces

Friction, load and effort forces acting in ropes turned around bollards.

Force and tension in cables with uniform loads.
• ### Forces and Tensions in Ropes due to Angle

Reduced load capacities in ropes, cables or lines - due to acting angle.
• ### Manila Ropes - Strength

Minimum breaking strength and safe load of manila 3-strand rope.
• ### Nylon Ropes - Strengths

Nylon 3-strand and 8-strand rope - minimum breaking strength and safe load.
• ### Polyester Polyolefin Ropes - Strengths

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

Polyester 3-strand and 8-strand rope - minimum breaking strength and safe load.
• ### Polypropylene Fiber Ropes - Strengths

Polypropylene fiber 3-strand and 8 strand rope - minimum breaking strength and safe load.
• ### Polypropylene Fiber Ropes - Strengths

Polypropylene fiber 3-strand and 8 strand rope - minimum breaking strength and safe load.
• ### Pulleys

Pulleys, blocks and tackles.
• ### Sisal Ropes - Strengths

Sisal rope 3-strand, minimum breaking strength and safe load.
• ### Winches

Effort force to raise a load.
• ### Wire Rope Slings

Sling angles and influence on capacity.
• ### Wire Ropes - Strengths

6 strand x 19 wire (6x19) - minimum breaking strength, safe loads and weight.

## Search

Search is the most efficient way to navigate the Engineering ToolBox.

## 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 older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2009). Polypropylene Fiber Ropes - Strengths. [online] Available at: https://www.engineeringtoolbox.com/polypropylene-rope-strength-d_1516.html [Accessed Day Month Year].

Modify the access date according your visit.

6.3.17

.