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

Copper Manganese strip, Low Resistance Alloy, CuMn3 manufacturer / supplier in China, offering Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus, Best seller K type thermocouple wire chromel alumel Kp Kn (type K KCA KCB KPX KNX), NiCr Nickel Chromium Alloy / Nichrome Wire for Radiant tube and so on.

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Supplier Homepage Products Copper Alloys Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus

Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus

Get Latest Price
Min. Order / Reference FOB Price
50 kilograms US $9-20/ kilograms
Port: Shanghai, China
Production Capacity: 2000tons/Year
Payment Terms: L/C, T/T, Western Union, Paypal
Product Type: Strip
Material: copper alloy
Carbon Content: 0
PCD: 290min
ET: 0
Hole: 0

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Basic Info

Model NO.: Constantan
Size: 0.01-3mm*0.3-600mm
surface: bright
Sample: Small Order Accepted
Trademark: Tankii
Transport Package: in Roll/Coil/Spool
Specification: 0.01-3mm*0.3-600mm
Origin: Shanghai, China
HS Code: 7409400000

Product Description

Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus 
  copper nickel alloy strip
Specifications of Copper Strip (Copper Tape)
1) Thickness: 0.035- 2.5mm
2) Width: 610mm max. Coil weight: 3 ton Max
3) Grade: C1100 / C1020 / C1220
4) Chemical Composition:C1100: Cu >99.90% C1020:      Cu >99.96% C1220: Cu >99.97%; P 0.015-0.04%
5) Oxygen content:C1100: O < 500PPM C1020: O < 50PPM
6) Temper: O, 1/4H, 1/2H, H      O: HV100
7) Electric 20°CConductivity:C1100/C1020 >97% ;C1220 >80%
Copper Strip(Copper Tape)
Brass StripC2600 C2680 C2801O, 1/4H, 1/2H,  3/4H, H, EH, SH0.15-5.0mm8-610mm
Bronze StripC5191  C5210   C5102  C52121/2H, 3/4H, H, EH, SH0.15-4.0mm8-610mm
Copper TapeC2600 C2680 C2801O, 1/4H,  1/2H, H0.15-5.0mm8-610mm
Reflow Tin Plated Copper StripC7541 C7521 C7701O,H0.15-22mmmax 405mm
Copper Clad Metal Strip Gilding MetalCuZn90,CuZn10,CuZn85F18,F110.20-3.55mm120-160mm
Copper Beryllium StripsC17200 C17000 C17300 C17500 C17510TB00 TD01-04  TF00 TH01-04  TM00-080.12-2.0mm10-400mm
Oxygen-Free Copper StripC1020 C1201 C1220O, 1/4H, 1/2H,  Hl0.1-2mmmax 405mm
Copper Nickel Zinc StripsC7541 C7521 C7701O 1/4H 1/2H  3/4H H EH SH0.15-22mmmax 405mm
Copper Clad Steel StripC1020 C1201 C1220O, 1/4H, 1/2H,  Hl0.2-2.5mm120-160mm
Brass Clad Steel Strip CoilC2600 C2680 C2801H65 H900.15-5.0mm8-610mm
Copper Clad Aluminum Busbar1070 aluminum; C1020 C1201 C1220 copperhard,soft, semi-hard3-12mm30-200mm
1. Description
Cupronickel, also can be called copper nickel alloy, is an alloy of copper, nickel and strengthening impurities, such as iron and manganese.  
  Copper Nickel Alloy- constantan
Chemical Content, %
NiMnFeSiCuOtherROHS Directive
Mechanical Properties
Max Continuous Service Temp400ºC
Resisivity at 20ºC0.49±5%ohm mm2/m
Density8.9 g/cm3
Thermal Conductivity-6(Max)
Melting Point1280ºC
Tensile Strength,N/mm2   Annealed,Soft340~535 Mpa
Tensile Strength,N/mm3   Cold Rolled680~1070 Mpa
Elongation(cold rolled)≥Min)2%(Min)
EMF vs Cu, μV/ºC (0~100ºC)-43
Micrographic Structureaustenite
Magnetic PropertyNon
Application of Constantan
Constantan is a copper-nickel alloy that contains specific minor amounts of additional
elements to achieve precise values for the temperature coefficient of resistivity. Careful
control of melting and conversion practices results in a very low level of pinholes at
ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges.

2. Specification
Wire: Diameter: 0.04mm-8.0mm

It could be used to make electric heating element in low-voltage apparatus, such as thermal overload relay, low-voltage circuit breaker, and so on.

It has nice corrosion resistance, good malleability and solderability. 
5. Packing detail 
 1). Coil (plastic spool) + compressed ply-wooden case + pallet 
 2). Coil (plastic spool) + carton + pallet  

6. Products and services
1). Pass: ISO9001 certification, and SO14001cetification;
2). Fine after-sale services;
3). Small order accepted;
4). Fast delivery;
Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus

Alloy 294 Pipe Copper Nickel Alloy Contantan Tube for Apparatus

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