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

4.4.2 Torsion test. The torsion test will be conducted in accordance with ASTM A1023/A1023M. The minimum torsion values shall conform to the requirements of ASTM A1023/A1023M.

4.4.3 Wrapping test of main wires. From each short sample, not less than one specimen of each size of main wires from each wire strand shall be taken. The test specimen may be of any convenient length and shall be as unwound from a strand. One end of the specimen shall be secured on the mandrel in any convenient manner. The diameters of the mandrels and the number of wraps shall be as specified in 3.3.3.1 and 3.3.3.2 for the material and finish of the wires under the test. The wire shall not break or fracture. Occasional breakages at the place where the wire is secured on the mandrel shall be disregarded and an additional specimen substituted for the test.

4.4.4 Zinc coating test.

4.4.4.1 Weight of coating test. The zinc coating shall be tested for weight in accordance with the requirements of ASTM A90/A90M.

4.4.5 Fabrication tests (in strands).

4.4.5.1 Determination of the number of stranding operations. The number of stranding operations shall be determined. One of the outside wires in the strand shall be unlaid for a distance of 1 foot, holding the remaining outside wires in their original position. If the unlaid wire was in contact with the same wires in the inside layer, then the two layers were fabricated in one operation. The same tests may be applied to the intermediate layers of the strand after removing all outer layer wires.

4.4.5.2 Preformed wire rope. If the seizing at one end of the wire is removed, the difference between the nominal diameter of the wire rope and the nominal diameter before seizing is removed shall be not more than the values given in table XLI, or for type VI, small cord, wire rope, in table XL.

4.5 Rejection and retests.

4.5.1 Rejection. If any of the test specimens fail to pass any specified tests, all reels or coils from the same production length shall be rejected.

4.5.2 Retest. In the event of failure of one or more representative specimens, retest of additional specimens from the production length will be permitted. If one of the retest specimens fails, all reels or coils from the same production length shall be rejected.

4.6 Inspection of packing. Sample packages and packs, and the inspection of the preservation, packaging, packing, and marking for shipment and storage shall be in accordance with the requirements of section 5 and the documents specified therein.