Box Anchor Chain and Anchor Chains typically come in various sizes, ranging from 10 mm to 130 mm in diameter. The grade commonly used is Grade 2, Grade 3, or U3, with higher grades offering greater strength. Viscosity is not typically a relevant property for anchor chains. Buoyancy depends on material density, with steel chains being negatively buoyant. The material is usually high-tensile steel, galvanized or ungalvanized, for corrosion resistance. Other properties include proof load, breaking load, and test certificate compliance (e.g., ABS, DNV, LR).