High Efficiency Aluminum Alloy Sacrificial Anodes for Dock Steel Piles

Main Applications:
Aluminum anodes can prevent corrosion of steel structures in seawater and freshwater, suitable for cathodic protection of metals in seawater media such as ships, mechanical equipment, marine engineering, port facilities, seawater pipelines, hulls, ballast tanks, storage tanks, drilling platforms, pipelines in seabed mud, cables, and other facilities. The performance of aluminum anodes is influenced by the chemical composition of the alloy. We offer different alloy compositions to meet customer requirements and can also manufacture anodes with specific chemical compositions according to customer needs.

Al-Zn-In-Cd A11 2.5–4.5 0.018–0.050 0.005–0.020 - - - 0.10 0.15 0.01 Balance
Al-Zn-In-Sn A12 2.2–5.2 0.020–0.045 - 0.018–0.035 - - - 0.10 0.15 0.01 Balance
Al-Zn-In-Si A13 5.5–7.0 0.025–0.035 - - - 0.10–0.15 - 0.10 0.15 0.01 Balance
Al-Zn-In-Sn-Mg A14 2.5–4.0 0.020–0.050 - 0.025–0.075 0.50–1.00 - - 0.10 0.15 0.01 Balance
Al-Zn-In-Mg-Ti A21 4.0–7.0 0.020–0.050 - - 0.50–1.50 - 0.01–0.08 0.10 0.15 0.01 Balance
Electrochemical Performance
Item Anode Material Open Circuit Potential /V Working Potential /V Actual Capacity / (Ah/kg) Current Efficiency / % Consumption Rate / kg·(A·a)?1 Dissolution Condition
Electrochemical Performance Type 1 -1.18 to -1.10 -1.12 to -1.05 ≥2400 ≥85 ≤3.65 Byproducts detach easily, uniform surface dissolution
Type 2 -1.18 to -1.10 -1.12 to -1.05 ≥2600 ≥90 ≤3.37

Al-Zn-In-Cd A11 2.5–4.5 0.018–0.050 0.005–0.020 - - - 0.10 0.15 0.01 Balance
Al-Zn-In-Sn A12 2.2–5.2 0.020–0.045 - 0.018–0.035 - - - 0.10 0.15 0.01 Balance
Al-Zn-In-Si A13 5.5–7.0 0.025–0.035 - - - 0.10–0.15 - 0.10 0.15 0.01 Balance