Galvanized steel wire rope with 1x7 standard construction is commonly used in large diameters in guy wire for bracing and stability, and for messenger support (1/8 inch and above), and electrical strand applications. In smaller diameters, it is used as fishing leaders and line. Galvanized steel wire rope is coated with a thin layer of zinc that protects underlying material from corrosion and provides rust resistance. This strong material remains ductile over long work periods, and has a higher breaking strength than stainless steel. 1x7 strand core is a single-strand construction that has one strand of wire rope with seven wires in each strand, formed helically around a strand core. 1x7 strand core is a common type that offers some abrasion resistance for ease of operation. This wire rope can be used in both large and small diameters for a wide range of applications. Wire rope, also called wire cable, is an assembly of wire strands formed helically around a central core. It is used for pulling, lifting, rigging, hoisting, and motion-control applications most commonly found in the manufacturing, marine, oil, mining, fiber-optics, aircraft, automotive accessory, and construction industries. A combination of characteristics including material, finish, construction, diameter, length, and breaking strength combines to give each rope its performance ability. Wire rope materials are selected for properties such as strength, elasticity, conductivity, and chemical- and weather-resistance. For strength purposes, most wire rope is made of bright (uncoated or bare) wire. However, it is also produced in a variety of finishes, such as polypropylene (PE), vinyl (PVC), or nylon. These coatings can increase overall durability and strength, and allow for specific use. The breaking strength for wire rope is the strength at which new wire rope will fail under a stationary load. Breaking strength is not considered safe working load (SWL) limit.
