Standard Poten Al (ASTM-B843 Grades H1A, H1B, H1C) (AZ63) Magnesium Sacrificial Anode

Chemical Composi on of Magnesium Anode Alloys % ASTM AZ 63 (H-1 Alloy) High-Poten al Alloy Element Grade "A" Grade "B" Grade "C" Aluminum (Al) 5.3 - 6.7 5.3 - 6.7 5.0 - 7.0 0.01 max. Zinc (Zn) 2.5 - 3.5 2.5 - 3.5 2.0 - 4.0 - Manganese (Mn) 0.15 min. 0.15 min. 0.15 min. 0.50 - 1.3 Iron (Fe) 0.003 max. 0.003 max. 0.003 max. 0.03 max. Nickel (Ni) 0.002 max. 0.003 max. 0.003 max. 0.001 max. Copper (Cu) 0.02 max. 0.05 max. 0.10 max. 0.02 max. Silicon (Si) 0.10 max. 0.30 max. 0.30 max. .05 max. Other 0.30 max. 0.30 max. 0.30 max. 0.30 max. Magnesium Remainder Remainder Remainder Remainder

Electrochemical Proper es of Magnesium Anode Alloys ASTM AZ-63 (H-1 Alloy) High-Poten al Alloy Grade-A Grade-B Grade-C *Closed Circuit Poten.al -1.45 to -1.55v 1.50 to -1.75v *Open Circuit Poten.al -1.50 to -1.60v -1.70 to -1.78v % Efficiency 50 to 54 > or = to 50 Current Capacity (Amp-Hrs/lb) 500 to 540 > or = to 500

Applica ons Magnesium anodes are economical and effective corrosion fighters that have been in use for well over 50 years and have been successfully protecting steel structures in fresh, brackish, and salt water environments as well as high resistivity soils. Applications for Magnesium Anodes include: Hulls of ships, barges, tugs, and boats Ballast Tanks for ore carriers and similar vessels Water Storage Tanks Piers and Pilings Pipelines Heat Exchangers Traveling Screens Dams, Locks, and Gates

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