Marine chains are heavy-duty chains used in maritime applications for mooring, towing, and securing vessels. Anchor chains, a subset of marine chains, are specifically designed to connect anchors to ships, providing strength and durability. Both are typically made from high-grade steel to withstand harsh marine environments.

Marine Chain and Anchor Chain Specifications:

Size: 10mm to 200mm diameter (common sizes: 13mm, 16mm, 19mm, 22mm, 25mm, 28mm, 32mm, 38mm, 42mm, 52mm, 76mm, 84mm, 100mm, 122mm, 152mm, 200mm).

Grade: Grade 2, Grade 3, U1, U2, U3, K3, K4, R3, R4, R5 (common grades: U3, K4, R4).

Material: High-strength carbon steel, alloy steel, or stainless steel (common: ASTM A1023, DIN 766, ISO 1704).

Viscosity: Not applicable (chains are solid metal).

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

Tensile Strength: 400 N/mm² to 1,200 N/mm² (varies by grade).

Proof Load: 40% to 50% of breaking load (depends on grade).

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

Certification: ABS, DNV, LR, BV, CCS, KR, NK, etc.

Common Standards: ISO 1704, DIN 766, ASTM A1023, BS 4942.