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CORDAGE INSTITUTE STANDARD CI 1308-96

Nominal Size

Linear

Linear

Tensile

Tensile

Design

Diameter

Diameter

Size /cir

Density

Density

Strength

Strength

Factory

In

mm

In

lbs/100ft

Kg /30 mt

lbF

kgF

Range

3/16

5

9/16

1.37

0.623

405

184

5-12

1/4

6

3/4

1.82

0.827

540

245

5-12

5/16

8

1

2.64

1.200

900

409

5-12

3/8

10

1 1/8

3.79

1.723

1215

552

5-12

7/16

11

1 1/4

4.87

2.214

1575

716

5-12

1/2

12

1 1/2

6.96

3.164

2385

1084

5-12

9/16

14

1 3/4

9.63

4.377

3105

1411

5-12

5/8

16

2

12.7

5.773

3960

1800

5-12

3/4

18

2 1/4

15.9

7.227

4860

2209

5-12

13/16

20

2 1/2

18.6

8.455

5850

2659

5-12

7/8

22

2 3/4

21.4

9.727

6930

3150

5-12

1

24

3

25.7

11.682

8100

3682

5-12

1 1/16

26

3 1/4

29.8

13.545

9450

4295

5-12

1 1/8

28

3 1/2

34.3

15.591

10800

4909

5-12

1 1/4

30

3 3/4

39.7

18.045

12150

5523

5-12

1 5/16

32

4

45.6

20.727

13500

6136

5-12

1 1/2

36

4 1/2

57.0

25.909

16650

7568

5-12

1 5/8

40

5

71.1

32.318

20250

9205

5-12

1 3/4

44

5 1/2

85.0

38.636

23850

10841

5-12

2

48

6

102.0

46.364

27900

12682

5-12

Note:1. Diameter is approximate and is actually determined by linear density.  2. Linear Density is considered standard. Tolerances: 3/16" – 5/16" diameters inclusive +/-; 10%; 3/8" – 9/16" inclusive + /- 8% and  up + / - 5%. Ktex (kilotex) is the metric density Value.   3. Working Load Limit is determined by dividing new rope Minimum Breaking Strength by the selected Design Factor.