Copper Nickel Alloy Coil & Strip Zinc Type C7521/C75200 Specification

• Customization: Available
• Product Type: Strip
• Material: Cu,Ni,Zn
• Model NO.: C7521
• Carbon Content: Low Carbon
• Status: Bright
• Density g/cm3: 8.73
• Electrical Conductivity %Iacs: 6
• Thermal Conductivity W/(M.K): 32
• Modulus of Elasticity Gpa: 125
• Specific Heat J/(G.K): 0.34
• Cold-Workability: Excellent
• Machinability: Suitable
• Electric Plating Property: Excellent
• Hot DIP Tin Plating Property: Excellent
• Transport Package: in Coil, Carton, Wooden Case
• Specification: RoHS, SGS
• Trademark: Ualloy
• Origin: Zhejiang, China
• HS Code: 7410121000
• Production Capacity: 500tons/Month

Product Description

Factory low price nickel iron alloy,nickel alloy,nickel silver strip C7521
 
Description

Copper-nickel-zinc alloy strip is based on nickel as the main alloying elements, correspondingly known as zinc white copper strip and manganese white copper strip. Copper-nickel alloy has good corrosion resistance and medium strength, high plasticity. Copper-nickel-zinc alloy strip has excellent mechanical properties, excellent corrosion resistance, good processing forming under hot and cold , easy to cut. And it is used in the manufacturing of instruments, meters, medical equipment, daily necessities and other precision parts.

(Other Name: CuNi18Zn18; BZn18-18; C75200; C7521.)

       Chemical Content(%)
 

UALLOY Brand	Nickel	Zinc	Copper
UALLOY-C7521	18	Bal	64

       Mechanical Properties
 

Density of g/cm³	8.7
Electrical Conductivity @20ºC(% IACS)	7
Thermal conductivity @20ºCW/(mK)	32
Coefficient of Thermal Expansion per °C	16.8 x 10^-6 /K
Specific Heat J/(g·k)	0.34
Poisson's ratio	0.33
Modulus of Elasticity (GPa)	135

Status	Tensile Strength		Yield Strength	Elongation	Hardness
	MPa	ksi	MPa	A50%	HV
R375(O)	≥375	≥55	≥180	≥20	90-120
R440(H/2)	440-570	54-83	≥250	-	120-180
R540(H)	540-640	79-93	≥420	-	150-210
R610(EH)	≥610	≥89	≥520	-	≥185

Processability
 

Cold working	Very Good
Cutting	Not suitable
Plating	Very Good
Hot Dip Galvanizing	Very Good
Laser Welding	Good
Resistance Welding	Very Good
Soldering	Very Good

Bending Performance (Bending Thickness: <=0.5mm; Bending Width: 10mm)
 

Status	90°R/T		180°R/T
	Good Way	Bad Way	Good Way	Bad Way
R375(O)	0	0	0	0
R440(H/2)	0	1	0	2
R540(H)	1	3	2	4
R610(EH)	-	-	-	-

Applications
 

Signal Connector	Very Suitable
Power Connector	Not Suitable
Miniaturized Connector	Suitable
Switch/Relay	Suitable
Semiconductor	Very Suitable

Production Process