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RR-W-410 Wire Rope And StrandThis specification covers wire ropes and wire seizing strands see 6.1. This specification does not include all types, classes, constructions, and sizes of wire rope and strand that are commercially available, but it is intended to cover the more common types, classes, constructions, and sizes that are suitable for federal government use.

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TABLE XXXV. Type IV, miscellaneous, class 3, flattened strand, construction 1, 6 by 25, style B; construction 2,

6 by 30, style G; construction 3, 6 by 27, style H; construction 4, 6 by 31, style V; extra improved plow steel, wire strand core or IWRC.

Rope diameter

Approximate circumference (inches)

Approximate rope lay length (inches)

Approximate weight (lb./ft.)

Uncoated

Galvanized

Nominal (ordered) (minimum) (inches)

Maximum

(inches)

Nominal strength (force) (lb.)

Minimum breaking strength (force) (lb.)

Nominal strength (force) (lb.)

Minimum breaking strength (force) (lb.)

3/81

2 1/2

2 3/4

0.394

2.625

2.888

1 1/8

7 7/8

8 5/8

0.26

11.80

14.30

15,880

636,000

762,000

15,480

620,000

742,000

14,300

572,000

686,000

13,940

558,000

668,000

1Applies to construction 1, style B only.

TABLE XXXVI. Type IV, miscellaneous, class 4, 8 by 19, rotation resistant, improved plow steel, IWRC.

Rope diameter

Approximate circumference (inches)

Maximum rope lay length (inches)

Approximate weight (lb./ft.)

Uncoated

Galvanized

Nominal

(inches)

Maximum

(inches)

Nominal strength (force) (lb.)

Minimum breaking strength (force) (lb.)

Nominal strength (force) (lb.)

Minimum breaking strength (force) (lb.)

1/4

5/16

3/8

7/16

0.265

0.331

0.394

0.459

3/4

1 1/8

1 3/8

1 11/16

2 1/8

2 17/32

2 31/32

0.12

0.18

0.26

0.36

5,160

8,020

11,520

15,600

5,040

7,820

11,240

15,220

4,640

7,220

10,360

14,040

4,520

7,040

10,100

13,680