12mm mooring chains are robust, galvanized steel chains designed for anchoring and securing vessels. They offer high tensile strength and corrosion resistance for marine applications. Commonly used in boats, ships, and offshore structures for reliable mooring.

Size: 12mm diameter

Grade: Typically Grade 2, Grade 3, or High-Tensile (e.g., G30, G40, G70)

Material: Carbon steel or alloy steel (hot-dip galvanized for corrosion resistance)

Breaking Load: Approximately 6.5 to 12.5 tons (varies by grade)

Proof Load: Around 2.6 to 5 tons (varies by grade)

Weight in Air: ~2.2 kg/m (varies slightly by grade)

Weight in Water: ~1.9 kg/m (due to buoyancy displacement)

Buoyancy: Slightly negative (sinks in water)

Viscosity: Not applicable (solid material)

Common Standards: ISO 1704, DIN 766, ABS, or other classification society approvals

Link Length: ~3.6 x chain diameter (~43mm for 12mm chain)

Link Width: ~2.1 x chain diameter (~25mm for 12mm chain)

Surface Treatment: Hot-dip galvanized (typical zinc coating thickness: 50-100 microns)