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