This might help : Type M® Guy Wire - Alumoweld Aluminum-Clad Steel
information is at : http://www.aflglobal.com/Products/Aluminum-Clad-Steel/Guy-Wire/Type-M-Guy-Wire-Alumoweld M® Guy Wire -Aluminum Alumoweld Aluminum-Clad-Steel.aspx Steel
Hope that helps
Bob C WPE4CRY