• Al-In-Zn Alloy Sacrificial Anode
  • Al-In-Zn Alloy Sacrificial Anode

Al-In-Zn Alloy Sacrificial Anode

  • Crafted from Al-In-Zn alloy for stable electrochemical performance
  • Available in 80kg/90kg/100kg/110kg/120kg weight options to suit heavy-duty engineering needs
  • Integrated beveled edge + side slot design for secure installation on offshore wind foundations, dock piles, and other heavy structures
  • Complies with ASTM B418-19, featuring ≥95% current efficiency and an effective protection period of 8–12 years
  • Manufactured to exact drawing dimensions for precise alignment with project mounting positions

  • Al-In-Zn Alloy Sacrificial Anode

Description

This large-scale Al-In-Zn alloy sacrificial anode is engineered for heavy-duty cathodic protection of marine and offshore structures, including offshore wind foundations, dock piles, and subsea pipelines. Built to the precise specifications of engineering drawings, it features a unique beveled edge + side slot structure to ensure secure, load-bearing installation.
Cast from a high-performance Al-In-Zn alloy, the anode delivers consistent protective current with ≥95% efficiency. With a service life of 8–12 years in marine environments, it effectively prevents corrosion of steel substrates in harsh offshore conditions. Multiple weight and size options ensure compatibility with varying project load requirements.

Chemical Composition 

Element

BQ-Al-1 Content (%)

BQ-Al-2 Content (%)

BQ-Al-3 Content (%)

Zinc (Zn)

2.000~6.000

2.500~5.750

4.750~5.750

Indium (In)

0.010~0.020

0.015~0.040

0.015~0.020

Silicon (Si)

0.080~0.200

0.120 max.

0.060~0.120

Iron (Fe)

0.130 max.

0.090 max.

0.120 max.

Copper (Cu)

0.006 max.

0.003 max.

0.003 max.

Cadmium (Cd)

0.002 max.

0.002 max.

Other Impurities

0.100 max.

0.100 max.

0.100 max.

Aluminum (Al)

Remainder

Remainder

Remainder

 

Electrochemical Performance

Technical Measurement

Performance

Open Circuit Voltage (min.)

-1.10 Volts

Closed Circuit Voltage (min.)

-1.05 Volts

Current Capacity

2500 A.h/kg (1135 A.h/lbs)

Current Efficiency (min.)

90%

Consumption Rate

3.4 kg/A.y (7.6 lbs/A.y)

* The open/closed circuit voltage is with respect to a Ag/AgCl reference electrode.

🛠️ Technical Specifications (Precise Drawing Dimensions)

Weight Specification Overall Length Anode Body Length Body Height Bevel Height Side Slot Dimensions
80kg 1522mm 1142mm 150mm 10mm 150mm×160mm×180mm
90kg 1713mm 1426mm 150mm 10mm 150mm×160mm×180mm
100kg 1900mm 1426mm 150mm 10mm 150mm×160mm×180mm
110kg 2092mm 1570mm 150mm 10mm 150mm×160mm×180mm
120kg 2282mm 1712mm 150mm 10mm 150mm×160mm×180mm
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