Monel 400 round bars, a nickel-copper alloy (UNS N04400), redefine durability in marine, chemical, and high-corrosion environments. With a nickel content of 63-70% and copper addition, this alloy resists seawater, hydrofluoric acid, and alkaline solutions, outperforming stainless steels in reducing conditions. Newstar Hardware’s Monel 400 round bars offer a minimum tensile strength of 655MPa and yield strength of 240MPa, with elongation over 35% for formability in machining and cold working. Manufactured to ASTM B164, these bars come in diameters from 12mm to 250mm, with hot-rolled or cold-finished surfaces. The alloy’s excellent resistance to stress corrosion cracking in ammonia and saltwater makes it ideal for marine hardware, ship propellers, and brine handling equipment. Its non-magnetic properties and low thermal expansion further suit it for precision instruments and cryogenic applications. In chemical processing, Monel 400 resists hydrofluoric acid attacks, finding use in reactor vessels and piping. Rigorous testing for intergranular corrosion ensures reliability, while its compatibility with welding and brazing enables complex component fabrication.
