There are generally three ways to treat the surface of anchor chain, one is the original color, one is black paint, and the other is hot-dip galvanizing. Its process is relatively complicated and the cost is relatively high, but its anti-corrosion performance is greatly improved.
Hot-dip galvanizing is to immerse the anchor chain in high-temperature molten zinc to form a protective layer composed of zinc-iron alloy and pure zinc on its surface. This treatment process brings significant advantages to the marine application of anchor chain:
Barrier protection: The zinc coating isolates the steel substrate from corrosive elements such as seawater, salt spray and moisture to prevent oxidation and rust.
Sacrificial anode effect: Zinc is more active than steel and is therefore more susceptible to corrosion. Even if the coating is scratched, it can protect the underlying metal in the form of a sacrificial anode.
Long life: In harsh marine environments, the service life of hot-dip galvanized anchor chains is 3-5 times longer than that of untreated steel anchor chains, thereby reducing maintenance and replacement costs.
Uniform and bright surface: The galvanized layer has a smooth and bright appearance and a silver color, which enhances the visual appeal of the anchor chain. The coating thickness of hot-dip galvanizing is thicker than that of electroplating, and it evenly covers the threads and grooves of the original surface, eliminating weak points.
Structural integrity: The galvanized layer maintains the mechanical strength of the anchor chain by preventing corrosion, reducing the risk of sudden failure.
Predictable performance: Hot-dip galvanized anchor chains can maintain consistent strength and flexibility over time, ensuring reliable mooring in dynamic marine conditions.
Reduced risk of accidents: Corrosion-free anchor chains minimize the possibility of breakage or slippage, thereby protecting ships, crews and marine infrastructure.
Although the cost of hot-dip galvanized anchor chains is relatively high, galvanized anchor chains are replaced and maintained less frequently, resulting in long-term savings and reduced life cycle costs. Fewer repairs and replacements mean less operational disruptions for shipping, fishing and offshore platforms.
Non-toxic protection: Zinc is a natural element, which makes hot-dip galvanizing an environmentally friendly alternative to chemical coatings.
Industry Compliance: Complies with international standards (e.g. ISO, ASTM) for marine-grade anti-corrosion protection, ensuring suitability for global applications.
Hot-dip galvanized anchor chains are a must-have choice for marine operations, with unparalleled corrosion resistance, durability, safety and cost-effectiveness. They are able to withstand harsh marine environments and are indispensable for ensuring reliable mooring of ships, offshore platforms and aquaculture structures.
For industries that value durability and safety, hot-dip galvanizing is a proven solution that provides excellent value over the long term.
Contact us to customize the quality hot-dip galvanized anchor chain that suits your needs.
Author:Sinostar