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

3.11.3.7 Type I, general purpose, class 3, construction 6, 6 by 36 (Warrington-Seale) (see figure 16 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.

3.11.3.7.1 Wire ropes shall have 1 core and 6 strands of not less than 31 nor more than 46 wires each, totaling not less than 186 nor more than 276 wires in the strands.

3.11.3.7.2 Each strand shall have 1 center wire, not less than 6 nor more than 9 inner wires, not less than 12 nor more than 18 intermediate wires, and not less than 12 nor more than 18 outer wires. Wires in the inner layer shall be of one diameter. Wires in the intermediate layer shall be of two diameters of wires laid alternately. Wires in the outer layer shall be of one diameter.

Each strand shall be fabricated in one operation.

3.11.3.8 Type I, general purpose, class 3, construction 7, 6 by 36 (Seale-Filler wire) (see figure 17 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.

3.11.3.8.1 Wire ropes shall have 1 core and 6 strands of not less than 36 nor more than 46 wires each, totaling not less than 216 nor more than 276 wires in the strands. This construction shall not be required in sizes 3/8 inch and smaller.

3.11.3.8.2 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. There shall be not less than 7 nor more than 9 filler wires between the intermediate and outer layers. 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. Filler wires shall be of one diameter. Each strand shall be fabricated in one operation.

3.11.3.9 Type I, general purpose, class 3, construction 8, 6 by 36 (Filler wire-Seale) (see figure 18 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.

3.11.3.9.1 Wire ropes shall have 1 core and 6 strands of not less than 31 nor more than 49 wires each, totaling not less than 186 nor more than 294 wires in the strands. This construction shall not be required in sizes smaller than 1/2 inch.

3.11.3.9.2 Each strand shall have 1 center wire, not less than 5 nor more than 8 inner wires, not less than 10 nor more than 16 intermediate wires, and not less than 10 nor more than 16 outer wires. There shall be not less than 5 nor more than 8 filler wires between the inner and intermediate layers. 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. Filler wires shall be of one diameter. Each strand shall be fabricated in one operation.