... Alloy Conductors4 Construction Standard 6201-T81 high strength aluminum conductors, conforming to ASTM Specification B-399, are concentric ... appearance to 1350 grade aluminum conductors. Standard 6201 alloy conductors are similar to other alloy conductors commercially known as Ardival, ... therefore, have a greater resistance to abrasion than conductors of 1350-H 19 grade aluminum. 5 CONDUCTOR TECHNICALS ...