Sacrificial Magnesium Hull Anode
A consumable magnesium anode designed for cathodic protection of marine vessel hulls during electrolysis in saltwater environments. It attaches to the ship's hull and corrodes preferentially to protect the steel structure. Classified under HTS 8543.30.90.40 as a magnesium anode for electrolytic processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as unwrought magnesium or scrap
Unprocessed magnesium metal or scrap falls under Chapter 81 for magnesium and its articles, not functional electrolytic anodes
If assembled into complete water treatment filtering equipment
When incorporated as a component in full electroplating or filtration machinery, classification shifts to the complete apparatus under heading 8421
If aluminum-magnesium alloy anodes
Alloy anodes with aluminum base material are classified by principal material under Chapter 76 for aluminum
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Import Tips & Compliance
• Verify magnesium purity exceeds 99% for anode efficiency; obtain mill test certificates proving composition
• Common pitfall: misclassifying as general scrap metal
• Ensure proper hazardous material declarations if packaged with fluxes
Related Products under HTS 8543.30.90.40
Magnesium Ribbon Anode for Electrolysis Lab
High-purity magnesium ribbon anode used in laboratory electrolysis experiments to provide sacrificial anode protection and generate hydrogen gas. Wound on spools for easy handling in educational or research settings. Falls under HTS 8543.30.90.40 specifically as magnesium anodes for electrolytic functions.
Extruded Magnesium Anode Rod for Water Heaters
Cylindrical extruded magnesium anode rod installed in domestic water heaters to prevent tank corrosion through electrolytic protection. Typically 3/4-inch diameter with steel core for mounting. HTS 8543.30.90.40 covers these as functional magnesium anodes for electrolysis.
Magnesium Bracelet Anode for Offshore Platforms
Circular bracelet-style magnesium anode with cable attachment for cathodic protection of offshore oil platform legs and pipelines. Designed for high-current output in seawater electrolysis. Classified under HTS 8543.30.90.40 as specialized magnesium anodes.
High-Purity Magnesium Slab Anode for Electroplating Tanks
Rectangular slab magnesium anodes (99.9% purity) used in industrial electroplating tanks to maintain electrolyte balance and protect tank linings. Suspended via stainless steel hooks. HTS 8543.30.90.40 specifically for magnesium anodes in electrolytic apparatus.
Magnesium Pencil Anode for Marine Propellers
Slim pencil-shaped magnesium anode screwed into marine propeller hubs for localized cathodic protection against galvanic corrosion. Common in recreational boats and workboats. Falls under HTS 8543.30.90.40 as functional magnesium anodes.
Cast Magnesium Anode for Underground Pipelines
Heavy-duty cast magnesium anodes with backfill bags for cathodic protection of buried natural gas and water pipelines. Provides 20+ years of electrolytic protection. HTS 8543.30.90.40 classification for pipeline magnesium anodes.