Monel 400
Monel 400 is a nickel-copper alloy that is hardened by cold working only. Monel 400 has a low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel 400 also has excellent resistance to stress corrosion cracking in most fresh-waters. Monel 400 can be used in temperatures up to 1000 ºF. The alloy has great mechanical properties at subzero temperatures.
Monel 400（UNS NO4400/W.Nr.2.4360/ Nickel Alloy 400）
Product Description:
Monel 400 is a nickel-copper alloy that is hardened by cold working only. Monel 400 has a low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel 400 also has excellent resistance to stress corrosion cracking in most fresh-waters. Monel 400 can be used in temperatures up to 1000 ºF. The alloy has great mechanical properties at subzero temperatures.
Physical properties:
Density: 8.8g/cm³
Melting point: 1300-1350℃
Extreme chemical composition:
Ni (plus Cobalt)： 63.0 min.
C：0.3 max.
Mn：2.0 max.
Fe：2.5 max.
S：0.024 max.
Si：0.5 max.
Cu：28.0 - 34.0
Mechanical performance:
Cond. | Ultimate Tensile ksi (MPa) | Yield Strength ksi (MPa) | Elong. % in 2 in. | Rockwell Hardness |
Anneal | 75-90 (517-620) | 25-50 (172-345) | 60-35 | 60-80B |
Hot-Finished | 80-110 (552-758) | 40-100 (276-690) | 60-30 | 75-100B |
Cold-Drawn, Stress-Relieved | 84-120 (579-827) | 55-100 (379-690) | 40-22 | 85B-20C |
characteristic:
ALLOY400 is a single-phase solid-solution Ni-Cu alloy with excellent corrosion resistance to a wide range of media.
l corrosion resistance in a wide range of marine and chemical environments
l No stress corrosion cracking caused by chloride
l Good mechanical properties from subzero temperatures to approximately 550 °C (1020 °F)
l Approved for use in pressure vessels with wall temperatures from -10 to 425 °C (14 to 800 °F) according to VdTUV-Wbl standard. 263 and up to 900 °F (480 °C) per ASME Boiler and Pressure Vessel Code
l Good process ability and weld ability
Applications
Alloy 400 is widely used in many fields, especially marine and chemical processing. Typical applications are valves and pumps; pump and propeller shafts; marine fixtures and fasteners; electrical and electronic components; springs; chemical processing equipment; gasoline and fresh water tanks; crude petroleum stills, process vessels, and piping; boiler feedwater heaters and other heat exchangers; and deaerating heaters.
Form:
Round Bar, Plate, Tubing, Pipe, Flange