Monel 404 (UNS N04404)

Monel 404 (UNS N04404) 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

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

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

C	P	S	Mn	Si	Ni	Cu	Fe
≤0.15	≤0.02	≤0.03	≤0.10	≤0.10	52.00~57.00	Bal	≤0.50

Typical Physical & Mechanical Properties (RT, Annealed)

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

Specifications

Rod, Bar, Wire, Forgings	ASTM B164/ASME SB164, DIN 17752-17754
Plate, Sheet, Strip	ASTM B127/ASME SB127, DIN 17750
Pipe, Tube	ASTM B163/ASME SB163, ASTM B725/ASME SB725, ASTM B775/ASME SB775, ASTM B751/ASME SB751, DIN17751
Others	ASTM B366/ASME SB366(Fittings), 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.