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

3.14.4.3 Type IV, miscellaneous, class 3, flattened strand, construction 2, 6 by 30, style G (see figure 42 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.

3.14.4.3.1 Wire rope shall have 1 core and 6 strands of 1 triangular shaped center of 6 wires and

24 wires each, totaling 180 wires in the strands.

3.14.4.3.2 Each strand shall have 1 triangular-shaped center, 12 wires in the inner layer, and

12 wires in the outer layer. Each triangular-shaped center shall have 6 round wires. Each pair of the wires shall be twisted together, then the 3 pairs twisted together so that the cross-section of the center is triangular. There may be filler wires in the center. Wires in the inner layer shall be of one diameter. Wires in the center layer shall be of one diameter. Wires in the outer layer

shall be of one diameter. Each strand shall be fabricated in either two or three operations.

3.14.4.4 Type IV, miscellaneous, class 3, flattened strand, construction 3, 6 by 27, style H (see figure 43 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.

3.14.4.4.1 Wire rope shall have 1 core and 6 strands of 27 wires each, totaling 162 wires in the strands.

3.14.4.4.2 Each strand shall have 1 triangular-shaped center consisting of 3 round wires,

12 round wires in the inner layer, and 12 round wires in the outer layer. Wires in the inner layer shall be of one diameter. Wires in the center layer shall be of one diameter. Wires in the outer layer shall be of one diameter. Each strand shall be fabricated in either two or three operations.

3.14.4.5 Type IV, miscellaneous, class 3, flattened strand, construction 4, 6 by 31, style V (see figure 44 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.

3.14.4.5.1 Wire rope shall have 1 core and 6 strands of triangular-shaped brangled center strand of 6 or 7 wires and 24 wires each, totaling either 180 or 186 wires in the strands.

3.14.4.5.2 Each strand shall have 1 triangular-shaped brangled center strand, 12 wires in the inner layer, and 12 wired in the outer layer. Each triangular-shaped brangled strand shall have either a fiber center or a round wire center with 6 round wires laid around it and brangled so that the cross-section of the center strand is triangular. Wires in the center layer shall be of one diameter. Wires in the inner layer shall be of one diameter. Wires in the outer layer shall be of one diameter. Each strand shall be fabricated in either 2 or 3 operations.

3.14.5 Type IV, miscellaneous, class 4, 8 by 19 rotation resistant. Wire rope grades improved plow steel or extra improved plow steel shall be in accordance with the requirements specified herein.

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