Offshore mooring chains are heavy-duty steel chains used to secure floating structures like oil rigs and ships to the seabed. Anchor chains, a subset of mooring chains, provide stability and prevent drifting by connecting anchors to vessels. They are designed to withstand harsh marine conditions, including corrosion and high tension.

Offshore Mooring Chain and Anchor Chains typically range in size from 1.5 inches to 5 inches in diameter. Common grades include Grade 2, Grade 3, and R3, R4, R5, with higher grades offering greater strength. Material is usually high-tensile carbon steel or alloy steel. Viscosity is not applicable as chains are solid metal. Buoyancy is negligible due to high density, but buoyancy aids can be attached. Chains are often galvanized or coated for corrosion resistance. Breaking load varies by size and grade, ranging from 100 MT to over 3,000 MT. Stud links are commonly used for stability. Certifications include ABS, DNV, and API standards.