Mooring Chain Specs

Offshore mooring and anchor chain specifications per IACS UR W22 (studless) and IACS UR W7 (studlink). Chain grades R3, R3S, R4, R4S, R5 with nominal diameters 16–162 mm. Properties: minimum breaking load (MBL) in kN, proof load in kN, weight per unit length in kg/m, link length and width in mm, Young's modulus in GPa. Also includes wire rope (6×19, 6×37, spiral strand) and polyester rope (3-strand, braided) entries for taut-leg mooring system comparison per API RP 2SK.