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.
Good corrosion resistance, good weldability
Resistant to acidic,alkaline conditions
Monel 400 Wire, Monel 400 bar, Monel 400 strip, Monel 400 tube, Monel 400 plate
Diameter 1--500mm for bar/rod, thickness 0.05--3mm for sheet/strip
Monel 400 is a Nickel-Copper ally with high strength and excellent corrosion resistance in a range of acidic and alkaline environment and especially suitable for reducing conditions.
UNS | Trademark | W.Nr |
N04400 | Monel400 | 2.4360 |
Density | 8.83 g/cm³ |
Melting point | 1300-1390 °C |
Monel 400 Specification
Item | Chemical Composition (%) | |||||||||
Monel 400 | C | Mn | Si | S | Ni | Fe | Cu | |||
≤0.3 | ≤2.0 | ≤0.5 | ≤0.024 | ≥63.0 | ≤2.5 | 28.0~34.0 | ||||
Standard | ||||||||||
Sheet/Plate | Round bar/Wire | Pipe | Tube | |||||||
ASME SB-127AMS 4544QQ-N-281 | ASME SB-164ASME SB-564AMS 4675AMS 4730AMS 4731 | ASME SB-163ASME SB-165ASME SB-829 | ASME SB-730ASME SB-751ASME SB-775 |
Monel 400 Minimum mechanical properties in the room temperature
Alloy state | Tensile strength Rm N/mm² | Yield strengthRp0. 2N/mm² | ElongationAs % | Status |
Monel 400 | 480 | 170 | 35 | Solution treatment |