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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RR-W-410G

3.11.3 Type I, general purpose, class 3, 6 by 37 and 6 by 36.

3.11.3.1 Material. Material shall be carbon steel or corrosion-resistant steel as specified

(see 3.1 and 6.2(o-1)).

3.11.3.1.1 Finish. Wire rope of corrosion-resistant steel shall be uncoated wires. Wire rope of improved plow steel, extra improved plow steel, or extra extra improved plow steel shall be bright (uncoated) wires or zinc coated (galvanized) wires as specified (see 3.3.1.3, 3.3.5, and

6.2(o-2).

3.11.3.1.2 Cores. Cores shall be in accordance with table VI as specified (see 6.2(o-3).

3.11.3.1.3 Fabrication. Wire ropes shall be fabricated as specified (see 3.4 and 6.2(o-4)).

3.11.3.1.4 Lay. Lay shall be as specified (see 3.4.4 and 6.2(o-5)).

3.11.3.1.5 Dimensions, weight, and strength. Dimensions, weight, and strength requirements shall be as specified in table VII and tables IX through XII.

3.11.3.2 Type I, general purpose, class 3, construction 1, 6 by 37 (3 operations) (see figure 11 for typical construction). Wire rope grades phosphor bronze, corrosion-resistant steel, improved plow steel, and extra improved plow steel shall be in accordance with the requirements specified herein.

3.11.3.2.1 Wire ropes shall have 1 core and 6 strands of not less than 34 nor more than 37 wires each, totaling not less than 204 nor more than 222 wires in the strands. This construction shall not be required in lang lay or in sizes 3/8 inch and larger.

3.11.3.2.2 Each strand shall have 1 center wire, 6 inner wires, 12 intermediate wires, and not less than 15 nor more than 18 outer wires. Wires in the inner layer shall be of one diameter. Wires in the intermediate layer shall be of one diameter. Wires in the outer layer shall be of one diameter. Each strand shall be fabricated in three operations.

3.11.3.3 Type I, general purpose, class 3, construction 2, 6 by 37 (2 operations) (see figure 12 for typical construction). Wire rope grades phosphor bronze, corrosion-resistant steel, improved plow steel, and extra improved plow steel shall be in accordance with the requirements specified herein.

3.11.3.3.1 Wire ropes shall have 1 core and 6 strands of not less than 33 nor more than 43 wires each, totaling not less than 198 nor more than 258 wires in the strands. This construction shall not be required in lang lay.

3.11.3.3.2 Each strand shall have 1 center strand of 19 to 25 wires constructed in accordance with

3.11.2.3, 3.11.2.4, and 3.11.2.5. Over this center strand, the outer layer shall be not less than 14 nor more than 18 wires. Wires in the outer layer shall be of one diameter. Each strand shall be fabricated in two operations.