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Home > Tensile Strengths
 

Tensile Strengths

  

    New rope tensile strengths are based on test of new unused rope of standard construction in accordance with manufacturer's standard test methods.  It can be expected that strengths will decrease as soon as a rope is put into use.  Because of the wide range of rope use, changes in rope conditions, exposure to the many factors affecting rope behavior, and the possibility of risk to life and property, it is impossible to cover all aspects of rope applications or to make blankets recommendations as to working loads.

 

Size
 

 

Manila
 

Polypropylene

Blend

Nylon

Polyester

  DIA.  

CIR.

Tensile Strength
 

Tensile Strength

Tensile Strength

Tensile Strength

Tensile Strength

3/16”

5/8”

405

800
 

--

1000

1000

1/4"

3/4”

540

1250
 

1098

1650

1650

5/16”

1”

900

1900
 

1728

2550

2550

3/8”

1-1/8”

1215

2700
 

2650

3700

3700

7/16”

1-1/4"

1575

3500
 

3600

5000

5000

1/2"

1- 1/2"

2385

4200

4500

6400

6400

 9/16"

1-3/4" 

3105 

5100 

5450 

8000 

8000 

 5/8"

 2"

3960

6200
 

6400 

10400 

10000 

 3/4"

2-1/4" 

 4860

8500 

8400 

14200 

12500 

 13/16"

 2-1/2"

 5858

9900 

10200 

17000 

15500 

 7/8"

 2-3/4"

 6930

11500 

12000 

20000 

18000 

 1"

 3"

 8100

14000
 

15000 

25000 

22000 

 1-1/16"

 3-1/4"

 9450

16000 

17100 

28800 

25500 

 1-1/8"

 3-1/2"

 10800

18300 

19300 

33000 

29500 

 1-1/4"

 3-3/4"

 12150

21000 

22000 

37500 

33200 

 1-5/16"

 4"

 13500

23500 
 

25000 

43000 

37500 

 1-1/2"

 4-1/2"

 16650

29700 

31300 

53000 

46800 

 1-5/8"

 5"

 20250

36000
 

38300 

65000 

57000 

 1-3/4"

 5-1/2"

 23850

43000 

46500 

78000 

67800