CuNi18Zn20 | CW409J Material Datasheet

Name: CuNi18Zn20 | CW409J Metals Materials Datasheet
Creator: Applus+
Published: 2025-05-07
Keywords: CuNi18Zn20, CW409J, material description, producer/supplier/trade names, cross reference, material compliance, chemical composition, mechanical properties

Material Standard Values

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Material Description

Material Number	Material Number (single)	Standard	Range of Application	Standard Status	Country	Successor	Remark
CW409J (DIN EN 12166 : 1998-04)	CW409J	DIN EN 12166 : 1998-04	DIN EN 12166 : 1998-04 replaced by DIN EN 12166 : 2011-08	Replaced	Germany	CuNi18Zn20	Material CuNi18Zn20, mat. No. CW409J is an alloy of high strength and hardness. To the comparabel mark CuNi18Zn20, mat. No. 2.0740, acc. to DIN 17663 : 1983-12 applies: Strength is further increasable due to the high strain hardening capability. The material does not embrittle at low temperatures. Low electrical and thermal conductivity. The alloy is non-magnetic, corrosion resistance is better than for pure copper. Processing properties: warm forming: moderately cold forming: very good machinability: moderately hard and soft soldering: very good TIG-welding: very good burnishing: very good Application: In electrical engineering and electronics for springs, contacts, membranes as well as in precision engineering and in equipment manufacturing. In food industry, for musical instruments, glasses frames, safety keys as well as in construction trade for paneling, show-cases and stairrails.

Chemical Composition

Cu [%]	Fe [%]	Mn [%]	Ni [%]	Pb [%]	Sn [%]	Source	Remark
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Mechanical Properties

Semi-finished Product	Condition	Strength Abbrevation	Nominal Size [mm]	Temperature [°C]	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A10 [%]	Elongation A100 [%]	Elongation A [%]	Hardness HV	Source	Remark
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Cross Reference

Material Name	Country	Standard
CuNi18Zn20	Bulgaria	BDS 13709-76
CuNi18Zn20	Europe	EN 12166
CuNi18Zn20	International	ISO 430-83
MZN20N18	Poland	PN-77/H-87027
CuNi18Zn20	Romania	STAS 1096-83
CuNi18Zn20	Hungary	MSZ 771/1-77
C76400	USA	ASTM B 151
C76400	USA	ASTM B 206
CuNi18Zn20 (2.0740)	Germany	DIN 17663

Producer/Supplier/Trade names

Tradename	Supplier
281	William Prym Holding GmbH, Stolberg
4203	VDM Metals GmbH, Frankfurt/Main
CuNi18Zn20	Heraeus Deutschland GmbH & Co. KG, Hanau
CuNi18Zn20	CSN Carl Schreiber GmbH, Neunkirchen
CuNi18Zn20	KME Germany AG & Co.KG, Osnabrück
CuNi18Zn20	Feindrahtwerk Adolf Edelhoff GmbH & Co, Iserlohn
CuNi18Zn20	Schreier Metall GmbH, Erkrath
CuNi18Zn20	G.Rau GmbH & Co. KG, Pforzheim
CuNi18Zn20	Gebr. Kemper GmbH + Co, Olpe/Biggesee
CuNi18Zn20	Wieland Prometa GmbH, Düsseldorf
CuNi18Zn20	Eugen Geyer GmbH, Königsbach-Stein
CuNi18Zn20	J.G. Dahmen & Co. GmbH & Co. KG, Iserlohn
CuNi18Zn20	Manfred J.C. Niemann, Bremen
N18	Wieland-Werke AG, Ulm
N19	Wieland-Werke AG, Ulm
N28	Wieland-Werke AG, Ulm
NB18	Sundwiger Messingwerk GmbH & Co.KG, Hemer
ND18	Sundwiger Messingwerk GmbH & Co.KG, Hemer
Neusilber 62/18	VDM Metals GmbH, Frankfurt/Main
Ns 62 18	Swissmetal Lüdenscheid GmbH, Lüdenscheid

Material Compliance

REACh	RoHS
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