The anchor chain is mainly used to connect the anchor to the hull and transfer the holding force generated by the anchor. When anchoring, when the length of the chain is appropriate, the anchor chain lying on the seabed part can also generate a partial holding force by friction with the contact substrate. The anchor chain is a chain connecting the anchor and the hull cable, which is mainly used to transfer the holding force of the anchor to offset the effect of external forces on the ship to ensure that the ship can safely berth in the designated waters. The anchor chain is composed of ordinary chain link, connecting chain link, connecting shackle, swivel ring, etc. According to the structure of the anchor chain,

CM490 round steel for Marine anchor chain, the product standard is GB/T18669-2002. Widely used in the manufacture of Marine anchor chains and accessories,kenter shackle,anchor shackle and swivel forerunner and so on. The main specifications are 24mm-50mm diameter. Anchor chain steel grades are CM370, CM490, CM690. Because of the excellent comprehensive mechanical properties and good microstructure, it is well received by users. CM490 chemical composition % :  C≤0.24; Mn: 1.10-1.60; Si: 0.15-0.55; P≤0.035; S ≤0.035 CM490 mechanical properties: Yield point (σs) ≥295MPa; Tensile strength (σb) 490-690MPa; Elongation (δ5) ≥ 22%; Impact test Akv≥27J (0℃, hot rolling of test material)

CM690 round steel for Marine anchor chain, the product standard is GB/T18669-2002. Widely used in the manufacture of Marine anchor chains. The main specifications are 24mm-50mm diameter.Anchor chain steel grades are CM370, CM490, CM690, etc. Because of the excellent comprehensive mechanical properties and good microstructure, it is well received by users. CM690 chemical composition % : C≤0.33; Mn: 1.30-1.90; Si: 0.15-0.55; P≤0.035; S 0.035 or less CM690 mechanical properties: Yield point (σs) ≥410MPa; Tensile strength (σb) ≥690MPa; Elongation (δ5) ≥ 17%; Impact test Akv≥60J (0℃, hot rolling of test material)