The largest anchor chains typically used in maritime applications have the following key specifications and technical properties:
Size: Diameter ranges from 84mm to 180mm (3.3 to 7.1 inches), with larger chains used for ultra-large vessels like oil tankers and container ships.
Grade: Common grades include Grade 2, Grade 3, and U3 (high-tensile), with Grade 3 being the most widely used for heavy-duty applications.
Viscosity: Not typically applicable to anchor chains, as they are solid metal components.
Buoyancy: Anchor chains are negatively buoyant, made of steel, and sink in water. Their weight provides holding power.
Material: Typically forged from high-strength carbon steel or alloy steel, often with a galvanized or painted coating for corrosion resistance.
Breaking Load: Ranges from 1,500 kN to over 10,000 kN, depending on chain size and grade.
Length: Standard shots are 27.5 meters (90 feet), with multiple shots connected for deep-water anchoring.
Manufacturing Standard: Complies with international standards like ISO 1704, ABS, DNV, or Lloyd’s Register.