Monel Alloy 400 Introduction to Characteristics and Execution Standards

Monel Alloy 400 Introduction to Characteristics and Execution Standards

Common Trade Names: Monel 400, Alloy 400; Nickel 400; Nickelvac 400; Nicorros 400.

Monel Alloy 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.

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 feed water heaters and other heat exchangers; and deaerating heaters.

Available Product Forms:Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon, wire;

Specifications:MONEL alloy 400 is designated as UNS N04400 and Werkstoff Nr. 2.4360 and 2.4361. It is listed in NACE MR-01-75 for oil and gas service.

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

Limiting Chemical Composition, %  by Weight  

Nickel (plus Cobalt).....................................................63.0 min.

Carbon..........................................................................0.3max.

Manganese...................................................................2.0 max.

Iron................................................................................2.5max.

Sulfur........................................................................0.024max.

Silicon...........................................................................0.5max.

Copper......................................................................28.0 -34.0.