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Wire Rope and Aircraft Cable
What is Wire Rope & Aircraft Cable?
The term cable is often used interchangeably with wire rope. However. in general. wire rope refers to diameters larger than 3/8". The smaller sizes are designated as Aircraft cable, cables, or cords. Two or more wires concentrically laid around a center wire is called a strand. It may consist of one or more layers. Typically, the number of wires in a strand is 7. I 9. or 37. A group of strands laid around a core would be called a cable or wire rope. For example, 7 strands with 19 wires in each strand would be a 7xl9 cable; 7 strands with 7 wires in each strand would be a 7x7 cable.
How to select Your Cable?
The greater the number of wires in a strand or cable of a given diameter. the more flexibility it has. IX7 or a lXl9 strand. having 7 and 19 wires respectively, is used principally as a fixed member. as a straight linkage. or where flexing is minimal. In smaller diameters. strand is often used for fishing lines. and leaders. light guying and lanyards. In the larger diameters. it's used as guy strand and standard rigging on yachts.
Cables designed with 3x7. 7x7. and 7xl9 construction provide for increasing degrees of flexibility but decreased abrasion resistance. These designs would be incorporated where continuous flexing is a requirement. Typical applications include computer printers. copiers. typewriters. aircraft controls. home appliances. automobiles. farm machinery. X-ray equipment and boats.
How do I select the Materials?
The five commonly used materials for wire rope and cable are:
- Stainless Steel - The primary benefit of stainless steel is superior corrosion resistance. Type 302/304 is the most common alloy used for cables. In addition to Type 302/304. Type 316 is available where extra corrosion resistance is required and Type 305 where specifications call for nonmagnetic properties in cable.
- Carbon Steel-Galvanized - Offers high strength and fatigue resistance but may be susceptible to corrosion. This material is normally coated with zinc.
- Phosphor Bronze - Often specified for applications where resistance to salt water and atmospheric corrosion are important or where a non-sparking cable is required. This material has about 50% less strength than Type 302/304 stainless steel.
- MoneI - A nickel/copper alloy offering slightly higher strength than phosphor bronze. It also offers corrosion resistance in many environments such as salt water. citric juices. pickling solutions or food acids where Type 302/304 stainless steel would deteriorate Improved Plow Steel,
- Extra Improved Plow - Normally specified for 6-strand wire rope l6xl9. 6x37). Common applications are found in hoist cable and other types of rigging. Improved plow steel is specified where strength. toughness and wear resistance are required. Extra improved plow provides about 10-15% more strength as well as greater abrasion resistance.
Since 1972, VER Sales has been offering its customers complete line of Stainless Steel and Galvanized Wire Rope & Cable from Commercial grade to Military Specification in wide variety of diameters and Strands. VER Sales also offers coated cable to meet your specific needs. Our quality control manual adheres to MIL-STD-105D specifications as well as MIL-I-45208A inspection systems requirements and MIL-STD-45662 calibration standards. We manufacture cable assemblies using Small Cord to the current MIL-DTL-83420 specifications, as well as cable assemblies using premium grade commercial quality aircraft cable.
AS9100 D CERTIFIED