Marine anchor chains are heavy-duty chains used to secure vessels to the seabed, providing stability and preventing drifting. They are typically made of high-strength steel and designed to withstand harsh marine conditions. The chains connect the anchor to the ship, ensuring reliable holding power in various water depths.

Size: 12.5 mm to 152 mm (1/2" to 6")

Grade: Grade 2, Grade 3, U2, U3, R3, R4, R5, R6 (per ISO 1704 or ABS standards)

Viscosity: Not applicable (anchor chains are solid metal)

Buoyancy: Negative (sinks in water due to high-density steel)

Material: High-tensile carbon steel or alloy steel (galvanized for corrosion resistance)

Breaking Load: Varies by size and grade (e.g., 12.5 mm Grade 2: ~32 kN, 76 mm Grade R3: ~3,500 kN)

Proof Load: Typically 50-70% of breaking load

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

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

Length per Shackle: 27.5 meters (15 fathoms)

Weight per Meter: Varies by size (e.g., 12.5 mm: ~2.2 kg/m, 76 mm: ~122 kg/m)

Standards: ISO 1704, ABS, DNV, LR, BV, etc.