Galvanized black powder-coated cable with 7x19 standard construction can be used in the aeronautical and entertainment industries and over pulleys, rigging, winches, in exercise equipment, and in garage door mechanics. Galvanized material is coated with a thin layer of zinc that protects the underlying material from corrosion and resists rust. Galvanized material remains ductile over long work periods. Black powder coating helps to hide cable from visual detection in aircraft, lighting, and scenery applications. 7x19 has seven strands of wire rope with nineteen wires in each strand formed helically around a core. 7x19 is more flexible and fatigue-resistant than the 7x7 class construction.
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-optic, aircraft, automotive accessory, and construction industries. A combination of characteristics such as 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.