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Copper oval sleeve. When properly applied to 7×7, 7×19 or 6×19 IWRC classification wire rope, the eye-splice configuration termination provides a secured connection equal to the breaking strength of the wire rope.
Cable is very strong in tensile strength, with a breaking strength in excess of 1000 lbs for these types of uses, and is a suitable in-fill material for a railing ("guard" in ICC codes). Typical diameters are 1/8", 3/16" for residential and 3/16" and 1/4" for commercial applications. [ 5 ]
In stricter senses, the term wire rope refers to a diameter larger than 9.5 mm (3 ⁄ 8 in), with smaller gauges designated cable or cords. [1] Initially wrought iron wires were used, but today steel is the main material used for wire ropes. Historically, wire rope evolved from wrought iron chains, which had a record of mechanical failure.
The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.
Semi-rigid stainless steel wire is by far the most common as it combines extreme strength, relative ease of assembling and rigging with reliability. Unlike rigid stainless steel rod, it is comparatively easy to recognize wear and stress as individual strands (normally 19) break often near a swage fitting, and can be inspected while standing. [3]
The line was over 20 km of high tensile steel piano wire with a breaking strength varying between 134 and 225 kg. [ 11 ] In 2014 the single-line single-kite altitude world record was made using a kite line of Ultra High Molecular Weight Polyethylene (UHMWPE, Dyneema) with 300 pound breaking-strength.