Shanghai, China
Management System Certification:
ISO 9001
OEM/ODM Service
Sample Available
Russian Speaker

CuNi2, CuNi Alloy Strip, CuNi Alloy Wire manufacturer / supplier in China, offering Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip, Thermocouple compensation wires and bare wire 0.711mm, Tankii alloy thermocouple connector and plug and so on.

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Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip

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Purchase Qty. / Reference FOB Price
20-99 kilograms US $30
100-499 kilograms US $28
500-999 kilograms US $23
1,000+ kilograms US $19
Port: Shanghai, China
Production Capacity: 20 Tons/Year
Payment Terms: L/C, T/T, Western Union, Paypal
Product Type: Strip
Material: Cu Ni Si
Carbon Content: Low Carbon
PCD: 100mm
ET: 15mm
Hole: 5

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Basic Info

Model NO.: CuNi2
sample: Free
size: 0.01-10mm*1-600mm
standard: ASTM/GB/JIS/DIN
surface: bright
State: soft hard
Trademark: TANKII
Transport Package: in Coil(Also Accord to Client′s Requirement)
Specification: CuNi2
Origin: China
HS Code: 74094000

Product Description

C64700 / C70250 Copper Nickel Silicon Alloys, including CuNi2Si copper bars,plates,wires.

CuNi2Si - UNS.C64700/C70250 Nickel Silicon Bronze Alloys, which is an age-hardening alloy, higher alloyed in comparison with CuNi1.5Si, for current-carrying formed parts. It has an a-structure with very fine precipitations and recommends itself both for lead frames which require a high rigidity of the pins and for connector with high demands on the electrical conductivity, strength and relaxation behavior. In addition, the CuNi2Si can also be used for current-carrying formed parts and contact springs due to its good fatigue strength, forming and spring properties.

Typical Application for C64700/C70250 Nickel Silicon Bronze Alloys:

Electrical : Resistance Welding Electrodes, Motor Rotor Bar, And Resistance Welding Tips.
Fastener   : Fastener parts
Industrial : Brazing Rod, Welding Rod

Available Sizes:
Custom Diameter & Sizes, Random Mill lengths

Available Products (forms):
Round bars, Flat bars, Square bars, Rectangular bars, Hexagon bars
Custom shapes are available upon request.

Chemical Content, %

NiMnFeSiCuOtherROHS Directive
Mechanical Properties

Max Continuous Service Temp200ºC
Resisivity at 20ºC0.05±10%ohm mm2/m
Density8.9 g/cm3
Thermal Conductivity<120
Melting Point1090ºC
Tensile Strength,N/mm2   Annealed,Soft140~310 Mpa
Tensile Strength,N/mm2   Cold Rolled280~620 Mpa
Elongation(cold rolled)2%(min)
EMF vs Cu, μV/ºC (0~100ºC)-12
Micrographic Structure austenite
Magnetic PropertyNon

Application of CuNi2
CuNi2 low resistance heating alloy is widely used in low-voltage circuit breaker, thermal overload relay, and other low-voltage electrical product. It is one of the key materials of the low-voltage electrical products. The materials produced by our company have the characteristics of good resistance consistency and superior stability. We can supply all kinds of round wire, flat and sheet materials.

Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Magnin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.

We've already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system.

We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.

Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over nine years in this field. During nine years, more than 60 management elites and high science and technology talents were employed.They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market.

Based on the principle of "first quality, sincere service", our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.

Our products, such us nichrome wire, nichrome strip, fecral wire, fecral strip, thermocouple wire, nickel wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.

1). the units are based upon US Customary.
2). the typical physical properties apply to age hardened products.

International Specification:

Rods/Bars/Plates/Sheets: UNS.C64700, UNS.C70250, RWMA Class 3

European Standards: CuNi2Si, DIN 2.0855, CW111C to EN

ASTM: American Society for Testing and Materials 
RWMA: Resistance Welder Manufacturers' Association 
Note: Unless otherwise specified, material will be produced to DIN & RWMA
Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip
Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip
Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip
Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip

Cw111c/C70250 copper Nickel Strip/Plate CuNi2 Resistance Wire/strip

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