MONEL 400, Alloy 400

N04400 tubing, Monel 400 plates, Alloy 400 tubing

MONEL nickel-copper alloy 400 (UNS N04400/W.Nr. 2.4360 and 2.4361) is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments. The composition is shown in the Table below.

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 freshwater tanks; crude petroleum stills, process vessels, and piping; boiler feedwater heaters and other heat exchangers; and deaerating heaters

Available Forms And Specifications

Plate, Sheet, and Strip – BS3072NA13 (Sheet and Plate), BS3073NA13 (Strip), ASTM B 127, ASME SB 127 (Plate, Sheet, and Strip), SAE AMS 4544 (Sheet, Strip, and Plate), DIN 17750 (Plate, Strip and Sheet), QQ-N-281 (Plate, Sheet, Strip, Bar, Rod, Wire, and Forgings)
Bar, Rod, Wire, and Forgings – BS3075NA13 (Wire), BS3076NA13 (Bar), ASTM B 164 (Rod, Bar, and Wire), ASTM B 564 (Forgings), ASME SB 164 (Rod, Bar, and Wire), ASME SB 564 (Forgings), AECMA PrEN 2305 (Wire for Rivets), SAE AMS 4675 (Bars and Forgings), SAE AMS 4730 (Wire), SAE AMS 4731 (Wire and Ribbon), DIN 17752 (Rod and Bar), DIN 17753 (Wire), DIN 17754 (Forgings), VdTÜV 263 (Sheet, Plate, Bar, and Tubing), QQ-N-281 (Plate, Sheet, Strip, Bar, Rod, Wire, and Forgings)
Pipe and Tube – BS3074NA13 (Tube), ASTM B 163 (Condenser and Heat Exchanger Tube), ASTM B 165 (Seamless Pipe and Tube), ASTM B 725 (Welded Pipe), ASTM B 730 (Welded Tube), ASTM B 751 (Welded Tube), ASTM B 775 (Welded Pipe), ASTM B 829 (Seamless Pipe and Tube), ASME SB 163 (Condenser and Heat Exchanger Tubes), ASME SB 165 (Seamless Pipe and Tube), ASME SB 725 (Welded Pipe), ASME SB 730 (Welded Tube), ASME SB 751 (Seamless and Welded Tube), ASME SB 775 (Seamless and Welded Pipe), ASME SB 829 (Seamless Pipe and Tube), SAE AMS 4574 (Seamless Tubing), DIN 17751 (Pipe and Tube), VdTÜV 263 (Sheet, Plate, Bar, and Tubing),
Welding Products – MONEL Filler Metal 60-AWS A5.14/ERNiCu-7; MONEL Welding Electrode 190-AWS A5.11/ENiCu-7.
Other Products – ASTM B 366, ASME SB 366 (Welded Fittings), SAE AMS 7233 (Rivets), DIN 17743 (Chemical Composition)

Chemical Composition

Ni	Cu	Fe	Mn	Si	Co	S	C
63min	28.0-34.0	2.5	2.0 max	0.50 max	2.0 max	0.024max	0.30max

Mechanical Properties

Density, g/cm³	8.8
Melting range, °C	1300 – 1350
Tensile strength, min, Mpa	550
Yield strength, 0.2% offset, min, Mpa	240
Elongation, %, min	40
Hardness, Rockwell	60-80

Applications

The alloy has been used in a variety of applications. Monel 400 is used in chemical, petroleum and marine industries such as Packed columns, Pressure vessels and reactors, Brine heaters, Heat exchangers, Salt production equipment, Pump and valve components, Pipework and pipe spool.

LKALLOY is a leading supplier of Monel 400 and other high-quality special metal alloys with decades of experience and extensive specifications. To buy or learn more about Alloy 400, contact us now.

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