The Anchor Chain Marking Standard specifies the identification and marking requirements for anchor chains used in marine applications. It ensures each chain link is marked with relevant details like grade, size, and manufacturer for traceability and safety. Compliance with this standard guarantees the chain meets international maritime regulations and performance criteria.

Anchor Chain Marking Standard: ISO 1704, DIN 766, or other applicable standards.

Size: Ranges from 12.5 mm to 152 mm (½ inch to 6 inches) in diameter.

Grade: Common grades include Grade 2, Grade 3, and High-Tensile (Grade 4, U1, U2, U3, R3, R4, R5).

Viscosity: Not typically specified for chains; applies to lubricants used in chain maintenance.

Buoyancy: Negative buoyancy due to steel material; weight in water is approximately 87% of in-air weight.

Material: Typically forged or welded high-strength carbon steel or alloy steel (e.g., ABS, LR, DNV certified).

Finish: Hot-dip galvanized or self-colored (ungalvanized) for corrosion resistance.

Proof Load: Varies by grade and size (e.g., Grade 3 chains have higher proof load than Grade 2).

Break Load: Determined by material and grade (e.g., U3 chains have higher break load than U2).

Length: Standard stud link chain lengths are 27.5 meters (90 feet) per shot.

Stud Link: Standard studded design for strength and stability.

Certification: Class-approved by classification societies (ABS, DNV, LR, etc.).