The high-strength marine chain is composed of several chain links. The high-strength marine chain includes the main link and the support at the center of the main link. The main link is elliptical, with the length ratio of the long diameter to the short diameter of 1.6:1.7 and the length ratio of the short diameter to the ring diameter of 3.5:3.7. This ratio can make the chain bear greater tension.

The outer wall of the main body of the high-strength marine chain link is set with anti-skid protrusion to avoid inadvertent sliding into the water during the operation. The inner wall is smooth, which can weaken the collision hazard between the chain links. The two ends of the support are closely connected with the inner wall of the main body of the chain link, which has the function of supporting the chain link, reducing the deformation rate, and improving the tensile ability. The surface of the chain link is covered with hot galvanized coating or anti rust paint coating, which can Avoid seawater corrosion and extend the service life of marine chain.

In order to get good connection quality of high strength marine chain, welding parameters are generally selected and regulated. At the end of burning, the section should be heated evenly and the temperature of the joint area should be even. At the end of the burning process, high burning strength is usually obtained and the reaction of the end face is avoided. During upsetting, the deformation shall be controlled at a sufficient speed to avoid too early fixing of the welding section metal. Together, the amount of deformation to ensure that the metal in the interface surface to have some flow.