copper nickel alloy CuNi2si-C70260 Strip/Tape/foil/wire

Model NO.: C70260 Material: Cu Ni Si PCD: 420 Hole: 0 Sample: Small Order Accepted Trademark: TANKII Specification: 0.01-3mm*0.3-600mm HS Code: 7409400000 Product Type: Strip Carbon Content: Low Carbon ET: 0 standard: GB/ASTM/JIS/BIS/DIN surface: bright Transport Package: in Coil(Also Accord to Client′s Requirement) Origin: China CuNi2Si -C70260 Copper Nickel Silicon Alloys
C70260 Details & Applications:
C70260 Copper Nickel Silicon
CuNi2Si -C70260 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 forC70260 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 Composition:
Ni: 1.60-2.20%
Si: 0.40-0.80%
Fe: 0.10% Max.
Zn: 0.50% Max.
Cu: Balance
Note: Copper plus additions equal 99.50% minimum.

Mechanical Properties

Max Continuous Service Temp	200ºC
Resisivity at 20ºC	0.05±10%ohm mm2/m
Density	8.9 g/cm3
Thermal Conductivity	<120
Melting Point	1090ºC
Tensile Strength,N/mm2   Annealed,Soft	140~310 Mpa
Tensile Strength,N/mm2   Cold Rolled	280~620 Mpa
Elongation(anneal)	25%(min)
Elongation(cold rolled)	2%(min)
EMF vs Cu, μV/ºC (0~100ºC)	-12
Micrographic Structure	austenite
Magnetic Property	Non

Note:
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. C70260, RWMA Class 3
European Standards: CuNi2Si, DIN 2.0855, CW111C to EN
Note:
ASTM: American Society for Testing and Materials
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced to DIN & RWMA.
Mechanical Properties:

The detailed Mechanical Properties will be available on request from customers.
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