Big anchor chains are heavy-duty chains used to secure ships and large vessels to the seabed. They are designed to withstand immense forces, ensuring stability and safety in harsh marine conditions. Typically made of high-strength steel, these chains are crucial for mooring and anchoring operations.

Size: 12mm to 200mm diameter

Grade: Grade 2, Grade 3, ORQ, K3, K4, U2, U3

Viscosity: N/A (not applicable for chains)

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

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

Breaking Load: Varies by size and grade (e.g., 12mm Grade 3: ~47 kN)

Proof Load: Typically 50-70% of breaking load

Surface Treatment: Hot-dip galvanized, painted, or bare

Certification: ABS, DNV, LR, BV, or other classification societies

Length: Standard 27.5m shots, customizable

Weight: Varies by size (e.g., 20mm chain: ~14 kg/m)