The 5 8 Mooring Chain is a high-strength steel chain used for anchoring and mooring large vessels.

It features a stud link design for added durability and resistance to deformation under heavy loads.

Commonly used in marine applications, it ensures secure and reliable anchoring in harsh conditions.

Size: 5/8 inch (16 mm) nominal diameter

Grade: Typically Grade 2, Grade 3, or higher (e.g., R3, R4, R5 for offshore use)

Material: High-tensile carbon steel or alloy steel (common: ASTM A986, A1022, or equivalent)

Viscosity: Not applicable (chains are solid metal, no fluid properties)

Buoyancy: Negative (submerged weight ~2.5–3.5 kg/m in water, depending on grade and coating)

Breaking Load: ~68–110 metric tons (varies by grade; e.g., Grade 3 ~82 tons, R3 ~92 tons)

Proof Load: ~30–50% of breaking load (e.g., ~27–40 tons for Grade 3)

Surface Treatment: Hot-dip galvanized or painted for corrosion resistance

Common Standards: ABS, DNV, ISO 1704, or other marine classification society certifications

Link Length: ~6 times nominal diameter (~96 mm for 5/8" chain)

Weight in Air: ~7–9 kg/m (varies by grade and manufacturing tolerances)