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

3.11.3.4 Type I, general purpose, class 3, construction 3, 6 by 37 (Seale) (2 operations) (see figure 13 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.

3.11.3.4.1 Wire ropes shall have 1 core and 6 strands of not less than 27 nor more than 37 wires each, totaling not less than 162 nor more than 222 wires in the strands. This construction is generally furnished only in regular lay. It shall not be required in sizes larger than 1 inch.

3.11.3.4.2 Each strand shall have 1 center wire, 6 inner wires, not less than 10 nor more than 15 intermediate wires, and not less than 10 nor more than 15 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 two operations.

3.11.3.5 Type I, general purpose, class 3, construction 4, 6 by 36 (Filler wire) (see figure 14 for typical construction). Wire rope grades improved plow steel, extra improved plow steel, and extra extra improved plow steel shall be in accordance with ASTM A1023/A1023M. Wire rope grade corrosion-resistant steel shall be in accordance with the requirements specified herein.

3.11.3.5.1 Wire ropes shall have 1 core and 6 strands of not less than 29 nor more than 37 wires each, totaling not less than 174 nor more than 222 wires in the strands. This construction shall not be required in sizes smaller than 3/8 inch.

3.11.3.5.2 Each strand shall have 1 center wire, not less than 7 nor more than 9 inner wires, and not less than 14 nor more than 18 outer wires. There shall be not less than 7 nor more than

9 filler wires between the inner and outer layers. Wires in the inner layer shall be of one diameter. Wires in the outer layer shall be of one diameter. Filler wires shall be of one diameter. Each strand shall be fabricated in one operation.

3.11.3.6 Type I, general purpose, class 3, construction 5, 6 by 36 (Seale-Warrington) (see figure 15 for typical construction). Wire rope grades improved plow steel, extra improved plow steel, and extra extra improved plow steel shall be in accordance with ASTM A1023/A1023M. Wire rope grades phosphor bronze and corrosion-resistant steel shall be in accordance with the requirements specified herein.

3.11.3.6.1 Wire ropes shall have 1 core and 6 strands of not less than 29 nor more than 37 wires each, totaling not less than 174 nor more than 222 wires in the strands. This construction shall not be required in lang lay or in sizes smaller than 3/8 inch.

3.11.3.6.2 Each strand shall have 1 center wire, not less than 7 nor more than 9 inner wires, not less than 7 nor more than 9 intermediate wires, and not less than 14 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 two diameters, laid alternately. Each strand shall be fabricated in one operation.