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)