Guy and Messenger Wire / Cable

Guy and Messenger Wire / Cable



Guy and Messenger cables are constructed using three or seven concentric-lay-stranded conductors with equal diameters. Each strand is bare, hard-drawn steel covered with a thick pure aluminum coating in a continuous ductile weld that provides a strong bond to the core. The steel core of each strand imparts high strength to the cable, and the aluminum cladding has excellent corrosion protection that prevents the steel from rusting and ensures it maintains its strength for a longer lifespan. Aluminum's corrosion resistance is superior to galvanized steel and thus requires less maintenance. Aluminum is also an excellent conductor, and an aluminum-clad steel strand has superior conductivity to galvanized steel. The cable weighs less than other types of high-strength guy and messenger wire because aluminum is much lighter; this helps for an easier installation.

Aluminum-clad Guy and Messenger wires can withstand harsh weather conditions such as icing and high speed winds, and are resistant to physical damage such as that from falling tree branches and trees.  The cables have excellent thermal stability, allowing them to operate at high temperatures over long periods of time without fail. Generally used for stability and support, these cost-effective cables are found in wind turbines, power and telephone lines, railway and subway systems, radio towers, and masts.

Product Highlights

  • Constructed with bare hard-drawn concentric-lay-stranded aluminum-clad steel.
  • High conductivity due to aluminum cladding.
  • High strength-to-weight ratio for excellent support and protection.
  • Superior corrosion resistance for long-lasting protection in harsh weather conditions.

Technical Standards

A-474   Round, aluminum-clad steel wires with uniform tension stranding used as messenger, guy, span wires or equivalent; of strand grades Siemens-Martin, common, utilities, high-strength, and extra high-strength.

B-415   Bare, round, hard-drawn, steel wire covered with an aluminum coating in sizes 4 to 12 AWG, with four conductivities. Used for electrical purposes.

B-416   Bare concentric-lay-stranded conductors constructed using bare, round, hard-drawn, aluminum covered steel wires that have 20.3% conductivity and are used for electrical purposes.

Designation Construction Nos. (in.) Breaking load (lb.) Weight lb./1,000 ft. Action
4 MG3 3/0.102 4500  70.61 Request a Quote
5 MG3 3/0.114 5600  8818  Request a Quote
6 MG 7/0.081  6300 104.1  Request a Quote
6.6 MG 7/0.083 6600  109.3  Request a Quote
7 MG3 3/0.128  7100 111.2  Request a Quote
8 MG 7/0.091 8000  131.4  Request a Quote
5/16 IN. MG3 3/0.141 8400  142.7  Request a Quote
10 MG 7/0.102 10000  165.1  Request a Quote
5/16 IN. MG 7/0.104  10400 171.6  Request a Quote
11.5 MG 7/0.110  11600 192.0  Request a Quote
12.5 MG 7/0.114 12500  206.2  Request a Quote
3/8 IN. MG 7/0.121 13800  228.4  Request a Quote
14 MG 7/0.121 14100  232.2  Request a Quote
16 MG 7/0.128 16000   260.0 Request a Quote
18 MG 7/0.139 18000  306.6  Request a Quote
7/16 IN. MG 7/0.145 18700  333.6  Request a Quote
20 MG 7/0.148 20000  347.5  Request a Quote
1/2 IN. MG 7/0.165 22900  432.0  Request a Quote
25 MG 7/0.173 25000   474.8 Request a Quote

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