Monel 400® is a nickel-copper alloy that is hardened by cold working only. Monel 400 is a nickel-copper alloy (about 67% Ni - 23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working. This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength. A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions.
Chemical Composition | |||||||
Grade | Ni% | Cu% | Fe% | Mn% | C% | Si% | S% |
Monel 400 | Min 63 | 28-34 | Max 2.5 | Max 2.0 | Max 0.30 | Max 0.50 | Max 0.024 |
Monel 400 International Brand | ||||
| USA | GE | UK | FR |
| UNS | SEW VDIUV | BS | AFNOR |
Monel 400 | N04400 | W.Nr.2.4360 NiCu30Fe | NA 12 | Nu 30 |
Physical Properties | ||
Grade | Density | Melting Point |
Monel 400 | 8.83 g/cm3 | 1300ºC-1390ºC |
Mechanical Properties | ||||
Alloy | Tensile Strength (Rm N/mm2) | Yield strength (RP0.2N/mm2) | Elongation(A5%) | HB |
Monel 400 | 480 | 170 | 35 | ≥331 |
Production Standard | |||||
| Bar | Forging | Pipe | Sheet/Strip | Welding Wire |
Standard | ASTM B164 | ASTM B564 | ASTM B165 | ASTM B127 | ERNiCu-7 |