Zn-5%Al-mischmetal alloy-coated steel wire (galfan / Bezinal ) Specifications Material: 45 75 ,77B,Q235 etc Dia: 1.0mm-6.0mm Aluminum content Grades Utilities, Common, Siemens-Martin, High Strength and Extra High Strength Finish Coatings Class A, B and C Specifications ASTM A925 -5 % Aluminum-Mischmetal Alloy-Coated Steel Overhead Ground Wire Strand ASTM A855 Zinc-5 % Aluminum-Mischmetal Alloy-Coated Steel Wire Strand Galfan a superior corrosive coating of 5% Aluminum and 95% Zinc.