... : U1, U2, U3 2. Type: Open and Stud 3. Certificates:CCS, ABS, etc. offshore mooring chains ... can also provide grade 1, 2 and 3 stud & open link chain; marine anchor: Hall anchor ... 252mmApprox Weight (27.5m): 98 kg to 3010 kgU1 Stud Link Chain:Proof Load: 46kn - 1290kn Breaking Load: ... - 2580knBreaking Load: 132kn - 3690knFeature of Stud Link Chain1. Most stud link chain is used on larger vessels and ...