Monel 404 (UNS N04404 / W.Nr. 2.4867)

Monel 404 (UNS N04404 / W.Nr. 2.4867) is a nickel-copper alloy which is used primarily in electrical and electronic application. Similar to Monel 401, the chemical composition of Monel 404 is carefully adjusted to provide a very low curie temperature, low permeability, and good brazing characteristics.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Monel 404	–	–	Monel 404	N04404	–	2.4867	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Ni	Cu	Al	Fe
Monel 404	≤0.15	≤0.10	≤0.10	≤0.020	≤0.030	52.0-57.0	Bal	≤0.05	≤0.50

Typical Physical and Mechanical Properties (RT, Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
8.91	1300-1350	550	185	36	/

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM B164, ASME SB164, DIN 17752
Plate, Sheet and Strip	DIN 17750
Pipe and Tube	DIN 17751
Welding Product	–
Others	ASTM B366, ASME SB366, DIN 17743

Features

Monel 404 has low magnetic permeability and low Curie temperature. Because its low magnetic permeability is not significantly affected by processing and fabrication, it is particularly suitable for electronic parts.