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

3.14.2.1.1 Each strand shall be in accordance with 3.11.2.2.2. Each strand shall be served with marline wound tightly on the strand so that it is firm, durable, uniformly smooth, and free from imperfections.

3.14.2.2 Type IV, miscellaneous, class 1, 5 by 19 marline-clad, construction 2, (Warrington) (see figure 38 for typical construction). Wire rope grade improved plow steel shall be in accordance with the requirements specified herein.

3.14.2.2.1 Wire rope shall have 1 core and 5 strands of 19 wires each, totaling 95 wires in the strands.

3.14.2.2.2 Each strand shall be in accordance with 3.11.2.3.2. Each strand shall be served with marline wound tightly on the strand so that it is firm, durable, uniformly smooth, and free from imperfections.

3.14.2.3 Type IV, miscellaneous, class 1, 5 by 19 marline-clad, construction 3, (Filler wire) (see figure 39). Wire rope grade improved plow steel shall be in accordance with the requirements specified herein.

3.14.2.3.1 Wire rope shall have 1 core and 5 strands of not less than 21 nor more than 25 wires each, totaling not less than 105 nor more than 125 wires in the strands.

3.14.2.3.2 Each strand shall be in accordance with 3.11.2.5.2. Each strand shall be served with marline wound tightly on the strand so that it is firm, durable, uniformly smooth, and free from imperfections.

3.14.3 Type IV, miscellaneous, class 2, 18 by 7 rotation resistant (see figure 40 for typical construction). Wire rope grades improved plow steel and extra improved plow steel shall be in accordance with ASTM A1023/A1023M.

3.14.3.1 Wire rope shall have 1 core, 6 strands of 7 wires each, totaling 42 wires in the inner layer and 12 strands of 7 wires each totaling 84 wires in the outer layer. The inner rope layer shall be lang lay, left lay, whereas the outer rope layer shall be regular lay, right lay. The wire rope shall be closed in 2 operations. Total number of wires in the rope shall be 126.

3.14.3.2 Each strand shall be in accordance with 3.11.1, except for material and lay.

3.14.3.3 Material. Material shall be carbon steel as specified (see 3.1 and 6.2(y-1)).

3.14.3.3.1 Finish. Wire ropes shall be bright (uncoated) or zinc coated (galvanized) as specified

(see 3.3.5 and 6.2(y-2)).

3.14.3.3.2 Cores. Unless otherwise specified (see 6.2(y-3), cores shall be either fiber or wire strand at option of the contractor (see 3.2.1 and 3.2.2).

3.14.3.3.3 Fabrication. Wire rope shall be preformed in accordance with 3.4.3.1.