Naval anchor chains are heavy-duty chains used to secure ships and vessels to the seabed. They are designed to withstand extreme marine conditions, including corrosion and high tension. Typically made of high-strength steel, these chains ensure stability and safety during anchoring operations.

Size: 12.5 mm to 152 mm (diameter)

Grade: Grade 1, Grade 2, Grade 3, Grade 4, U1, U2, U3 (common grades)

Viscosity: Not applicable (solid metal construction)

Buoyancy: Negative (sinks due to high-density material)

Material: High-tensile carbon steel, alloy steel, or stainless steel

Breaking Load: Varies by size and grade (e.g., 12.5 mm chain: ~2.5 tons, 152 mm chain: ~3,500 tons)

Proof Load: Typically 50-70% of breaking load

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

Link Type: Studlink (common for marine anchors) or studless

Length: Standard shots of 27.5 meters (90 feet) per shackle

Weight: Varies by size (e.g., 12.5 mm chain: ~2.2 kg/m, 152 mm chain: ~300 kg/m)

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