Galvanised chain is a versatile steel chain coated in protective zinc to prevent rust and corrosion, making them suited for everything from heavy-duty marine use to agriculture. The primary types are categorized by their
- Link Style (short, medium (regular), and long)
- Manufacturing Grade (commercial (non-rated), and lifting rated), and
- Galvanizing Process (hot-dip and electroplated).
Galvanised Chain categorized by Link Design
- Short Link (Anchor Chain): Links are shorter and tighter, making the chain less prone to kinking but much harder to link with complementary hardware. It is the most common choice for specialized applications such as marine anchor chains and heavy-duty towing. Generally, this chain is rated.
- Medium Link (Regular Chain): Links are longer, which allows you to hook or attach other hardware onto the end of the chain. It is the most commonly used chain in virtually every generic application. This chain can be either commercial or rated.
- Long Link (Safety Chain): Links are the longest, which allows you to very easily hook or attach other hardware anywhere along the chain. It is the most commonly used in specialized applications such as Trailer Safety Chain.
Galvanised Chain categorized by Grade (strength)
- Commercial: A low-carbon steel non-rated chain, highly common in Australia for general-purpose, securing gates, and light towing. Not approved for any lifting applications.
- Grade 30 (Grade L): A low-carbon steel short link chain, highly common in Australia for general-purpose, securing gates, and light towing. Approved for lifting applications.
- Grade 40 (G40 / G43): Made from higher-tensile steel, allowing it to handle higher weight loads with a smaller diameter short link chain. Approved for lifting applications.
- Grade 50 (G50): Specialized short link marine anchor chains (often branded as G50) designed for high strength and compatibility with windlasses. Approved for lifting applications.
- Grade 70 & above (G70, G80, G100, G120): Heat-treated short link chains meant specifically for heavy transport load-restraint, tying down machinery, and industrial rigging.
Galvanised Chain categorized by Zinc Application Method
- Hot Dipped Galvanised: The bare steel is submerged in molten zinc. This creates a thick, highly durable coating perfect for outdoor and saltwater environments. It has a dull grey, slightly rough finish.
- Electro-Galvanised (Zinc Plated): Zinc is applied via an electrical current. This results in a smooth, shiny, and precise finish, but provides a much thinner layer of protection. It is best suited for indoor or light outdoor decorative use.
For more information on the various terms that are used to describe Galvanised Chain please read this link to understand DIN Chain Terms