Professional Manufacture of Copper Nickel Strip C7521 CuNi18Zn20 Strip

• Customization: Available
• Product Type: Sheet
• Material: Cunizn
• Model NO.: C7521 / CuNi18Zn20
• Carbon Content: Low Carbon
• PCD: 120mm
• ET: 15mm
• Hole: 5
• Thickness: 0.005mm~3.0mm
• Width: 5mm~300mm
• colour: silver white
• Sample: Small Order Accepted
• surface: Bright
• standard: GB/ASTM/JIS/BIS/DIN
• OEM: YES
• Other Name: copper nickel alloy
• Transport Package: Wooden Cases
• Specification: ROHS
• Trademark: TANKII
• Origin: Shanghai
• HS Code: 7409400000
• Production Capacity: 3000ton/Year

Product Description

Professional Manufacture of Copper Nickel Strip C7521 CuNi18Zn20 Strip 

Nickel Silver Sheet/strip/wireThe following grades of Nickel Silver are manufactured:
1. 25% Ni 20%Zn
2. 15% Ni 20%Zn
3. 18% Ni 18%Zn
4. 18% Ni 26%Zn
It is an alloy of Copper, Nickel and Zinc various types manufactured contain copper between 58% to 62%, Nickel between 8 to 16% and balance Zinc. Nickel Silver is used mainly in wire and strip form for manufacture of frame and Zip manufacturing industry.

Parameter for Nickel Silver Sheet/Copper Nickel Zinc Sheet: 
 

Alloy No.	Chemical Composition
	Cu	Mn	Ni	Zn
C75200	63.0-66.5	0-0.5	16.5-19.5	Remainder
C7541	60.0-64	0-0.5	12.5-15.5	Remainder
C77000	53.5-56.5	0-0.5	16.5-19.5	Remainder

 

Alloy No.	Quality Grade	Shanghai Properties
		Tensile	Elongation	Hardness Test
		Strength
		(Kgf/mm 2 )		JIS	ShanghaiMetal
				Standards
C75200	O	≥ 38	≥ 20	-	≥ 110
	1/4H	38~46	≥ 10	-	110~140
	1/2H	44~52	≥ 5	120~180	130~160
	3/4H	-	-	-	-
	H	52~60	≥ 3	> 150	150~180
	EH	≥ 58	-	-	≥ 180
	SH	-	-	-	-
C7541	O	≥ 36	≥ 20	-	≥ 110
	1/4H	-	-	-	-
	1/2H	42~55	≥ 5	110~170	110~150
	3/4H	-	-	-	-
	H	≥ 50	≥ 3	> 135	≥135
	EH	-	-	-	-
	SH	-	-	-	-
C7700	O	-	-	-	-
	1/4H	-	-	-	-
	1/2H	55~67	≥ 8	150~210	140~200
	3/4H	-	-	-	-
	H	64~75	≥ 4	180~240	175~220
	EH	72~82	-	210~260	195~240
	SH	78~88	-	230~270	210~250

 

Name	state	tensile strength	elongation	Stantard
C75400	Soft Hard	≥340Mpa ≥640Mpa	≥35% ≥1%	GB/T2059-2000
C75200	Soft Hard	≥375Mpa ≥540Mpa	≥20% ≥3%	Q/HUAJ 26-2003
C77000	Soft Hard	≥400Mpa ≥705-805Mpa	≥40% ≥4%	Q/HUAJ 10-97

Applications for Nickel Silver Strips/Copper Nickel Zinc Strips:
1) Shielding material for communication electronics
2) Antenna material
3) EMI-shielding material
4) Spring contact
5) Flexible terminal
6) Environmentally-friendly plating-free electronic parts and components
7) Quartz oscillator
8) High-level material
9) Electric material 
 
Features
 
Feature: Elasticity modulus: 115GPa
Good fatigue resistance.
Good electroplate performance
Welding performance is good
Fastness in high temperature
Good cold working, deep drawing, curve performance.