As the leading ship supplier in Ross Dependency, Marine Intercom Systems, we specialize in delivering high-quality Marine Grade Zinc Anodes with unmatched speed and reliability. Trusted by shipowners and masters worldwide, our team ensures your vessel gets everything it needs — on time, every time.
Marine Grade Zinc Anodes are sacrificial components used to protect metal structures in seawater from corrosion. They work by corroding preferentially, diverting damage away from critical marine equipment. These anodes are essential for extending the lifespan of boats, ships, and offshore installations.
Size: Typically available in sizes ranging from 1 lb to 50 lbs, with common dimensions like 4" x 4" x 1" for smaller anodes and larger custom sizes for specific applications.
Grade: ASTM B418 Type I or Type II, MIL-A-18001H, or other marine-grade standards.
Viscosity: Not applicable (solid metal anodes).
Buoyancy: Negative buoyancy (sinks in water due to high density).
Material: High-purity zinc (99.995% Zn) with trace elements like cadmium, lead, and iron within specified limits.
Electrochemical Potential: -1.05V to -1.10V vs. Ag/AgCl reference electrode in seawater.
Capacity: Approximately 370 Ah/kg (ampere-hours per kilogram).
Operating Temperature: -40°C to 60°C (-40°F to 140°F).
Shape: Rectangular, disc, or custom shapes (e.g., hull-mounted, cylindrical).
Mounting: Includes pre-drilled holes or welded studs for secure attachment.
Environment: Designed for saltwater, brackish water, and freshwater with low resistivity.
Marine Grade Zinc Anodes typically comply with maritime standards such as MIL-A-18001H, ASTM B418, and DNV standards for marine corrosion control.
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