High-Efficiency Aluminum Alloy Sacrificial Anode for the Inner Wall of Circulating Water PipelinesAluminum Alloy Sacrificial AnodeMain Product Features:

Aluminum Alloy Sacrificial Anode (Sacrificial Anode Aluminum-Zinc-Indium Alloy Sacrificial Anode)
Standard: U.S. Mil-A-18001K/W / GB4948-2002
Main Performance of Aluminum Alloy Sacrificial Anode: Low driving voltage, lightweight, high current efficiency.
Application Scope of Aluminum Alloy Sacrificial Anode: Suitable for cathodic protection against metal corrosion in seawater environments, including ships, mechanical equipment, marine engineering, port facilities, as well as pipelines and cables in seabed mud.

The aluminum anodes provided by our company can prevent corrosion of steel structures in seawater and are widely used for anti-corrosion purposes in ship hulls, ballast tanks, seawater pipelines, port and dock facilities, marine engineering, drilling platforms, condensers, and pipelines in soil media. The most commonly used aluminum alloy anodes are the Al-Zn-In series and Al-Zn-Hg series anodes, which are suitable for cathodic protection of structures such as ships in seawater, port and marine facilities, seawater cooling water systems, and storage tank sediment water areas. The production of aluminum alloy anodes complies with GB4948-2002 "Aluminum-Zinc-Indium Series Alloy Sacrificial Anodes".

High-Efficiency Aluminum Alloy Sacrificial Anode for the Inner Wall of Circulating Water PipelinesMain Uses of Aluminum
Over the past fifty years, aluminum has become one of the most widely used metals in the world. Wrought aluminum and aluminum alloys are produced by forging methods to create aluminum castings; wrought aluminum and aluminum alloys are processed products made by pressure processing methods: plates, strips, foils, tubes, rods, profiles, wires, and forgings. According to the national standard for remelted aluminum ingots, "Remelted aluminum ingots are divided into six grades based on chemical composition: Al99.85, Al99.80, Al99.70, Al99.60, Al99.50, Al99.00" (Note: The number after Al indicates the aluminum content). In the construction industry, aluminum is widely used due to its stability in air and excellent appearance after anodizing; in aviation and national defense military industries.

The density of aluminum is 2.7g/cm3, open-circuit potential: approximately -1.05V, current efficiency greater than 70%, △E=0.25V. It is typically used in water with a resistivity of less than 150Ω·m. Aluminum anodes are generally not used in soil.

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

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～-1.10 -1.12～-1.05 ≥2400 ≥85 ≤3.65 Products easily detach, surface dissolves uniformly
Type 2 -1.18～-1.10 -1.12～-1.05 ≥2600 ≥90 ≤3.37