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Copper and copper alloy strip (foil)

C77000/CuNi18Zn27

C77000 /CuNi18Zn27 Copper-Nickel-Zinc alloy with beautiful color, ductility, fatigue resistance, corrosion resistance, good deep drawing performance, it is rich in silver-white metallic luster, has good machinability, corrosion resistance and Mechanical properties, suitable for cold pressure processing, high surface finish after cutting.
As this alloy has the pleasing silver like color, it also called nickel silver.
Chemical Composition:

Cu: 53.5-56.5%
Ni: 16.5.00-19.5%
Fe: 0.25% Max.
Pb: 0.05% Max.
Mn: 0.50% Max.

Zn: Balance

JIS	UNS	EN	Cu%	Ni%	Zn%
C7701	C77000	CuNi18Zn27	53.5-56.5	16.5-19.5	Rem

Mechanical Properties

Mechanical Properties for C77000 alloy
Alloy No	Quality	Tensile	Elongation %	Hardness Test HV
	Grade	Strength
		（Kgf/mm
C77000	1/2H	55~66	≥8	150~210
	H	64~75	≥5	180~240
	EH	72~82	~	240~260
	SH	78~88	~	230~270

Application

C77000 /CuNi18Zn27 - mainly used in Liquid crystal oscillator component housing, medical machinery, slides for potentiometers, precision instruments, architecture, wind instruments, etc.