Anchor Chain

An Anchor Chain is a heavy-duty marine chain used to secure a vessel's anchor to the ship's hull & its designed to withstand extreme loads and harsh marine conditions, anchor chains are typically made from high-grade steel and are engineered for strength, durability, and corrosion resistance.

Each link is forged and calibrated to precise dimensions, ensuring smooth operation through windlasses and chain stoppers. Anchor chains come in various grades (such as U2 or U3), with U3 being the highest strength and most commonly used for deep-sea or commercial vessels.

These chains are critical in anchoring systems, helping absorb dynamic loads and maintaining the vessel's position against wind, currents, and tides.

Specifications

Chain Type

Stud-link (most common for marine applications), Studless (used for smaller vessels or specific winch systems)
Heat Treatment: Quenched and tempered for strength and toughness

Material

High-tensile, heat-treated marine-grade steel

Dimensions

Diameter Range: 12.5 mm to 122 mm+
Link Length: Typically 6× the link diameter
Standard Length: 27.5 meters per "shackle" or "shot" (standard shipping length)

Weight

Varies by size; e.g., a 32 mm U3 stud-link chain weighs approx. 22.3 kg/m

Breaking Load

Defined by grade and diameter (e.g., 32 mm U3 chain ~750 kN)
Safety factor usually 4:1

Breaking Load

Defined by grade and diameter (e.g., 32 mm U3 chain ~750 kN)
Safety factor usually 4:1

Finish / Coating

Hot-dip galvanized (standard)
Bitumen-coated or painted (alternative or additional protection)

Compliance & Classification

Certified to:
IACS standards (ABS, DNV, LR, BV, etc.)
ISO 1704
OCIMF / SOLAS regulations for commercial marine use

Breaking Load

Defined by grade and diameter (e.g., 32 mm U3 chain ~750 kN)
Safety factor usually 4:1