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CuNi 44 Wires & Strips

Leading Manufacturer of enamelled isotan wire (german make), cuprothal 49 wire and constantan wire from Mumbai.

Enamelled Isotan Wire (German Make)

Enamelled Isotan Wire (German Make)
  • Enamelled Isotan Wire (German Make)
  • Enamelled Isotan Wire (German Make)
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Approx. Price: Rs 100 / GramGet Latest Price
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Product Details:

Minimum Order Quantity1 Gram
Diameter0.02 - 8.00 mm
Usage/ApplicationIndustrial
ShapeRound
Insulation TypeEnameled
MaterialIsotan
Highest Temperature600 Degree Celsius
BrandIssabellenhutte Germany
Conductor TypeEnamelled

ISOTAN® is notable for its low temperature coefficient and high resistance to oxidation and chemical corrosion.

The alloy is non-magnetic. It is suitable for electrical resistors, potentiometers, heating wires, heating cables and mats. Ribbons are used for heating of bimetals.

For resistance and heating applications, the maximum working temperature in air is +600 °C.

Form of Delivery

ISOTAN® is supplied in the form of round wire in the dimension 0.02 to 8.00 mm Ø in bare, oxide-insulated or enamelled condition. The range also includes flat wires (see Technical Information), stranded wires, ribbon sheets and foils.

Notes on Treatment

ISOTAN® can be worked easily. It can be soldered and brazed without difficulty. All known welding methods are applicable.



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Additional Information:

  • Item Code: 74082200
  • Delivery Time: Ex Stock
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Cuprothal 49 Wire

Cuprothal 49 Wire
  • Cuprothal 49 Wire
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Approx. Price: Rs 3,850 / KgGet Latest Price
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Product Details:

Usage/ApplicationIndustrial
MaterialCuprothal (Cu Ni Alloy)
BrandKanthal ( Sweden )
Hardness130 Hv
Yield Strength250 MPa
Tensile Strength430 MPa
Elongation20%
Density8.9 g/cm3
Electrical Resistivity0.49 ohm mm2/m at 20 Deg C
Temperature Factor of Resistivity100-600 Deg C
Melting Point1280 Deg C

Cuprothal 49 is an austenitic copper-nickel alloy (CuNi alloy) for use at temperatures up to 600°C (1110°F). The alloy is characterized by high electrical resistance, high ductility and good corrosion resistance.


In finer sizes the alloy's negligible temperature coefficient of resistance combined with its high resistivity makes it useful for the winding of precision resistors which must not change in resistance over a limited range in temperature. For this purpose the alloy is identified as Cuprothal 49 TC.


Other typical applications are:

  • Temperature-stable potentiometers
  • Industrial rheostats
  • Electric motor starter resistances.
Ni %Mn %Fe %Cu %
Nominal Composition44.01.00.5Bal.
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Constantan Wire

Constantan Wire
  • Constantan Wire
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Approx. Price: Rs 3,500 / KilogramGet Latest Price

Product Details:

MaterialConstantan (Cu Ni Alloy)
Usage/ApplicationResistance & Thermocouple
Thickness0.5-1.5 mm
BrandRescal (France)
Hardness130 Hv
Highest Temperature400 Deg C
SurfaceBright Annealed
Material GradeCuNi44

CuNi44 offers high electrical resistivity and very low temperature coefficient of resistance (TCR). Due to its low TCR, it finds use in wire-wound precision resistors that can operate up to 400°C (750°F). This alloy is also capable of developing a high and constant electromotive force when coupled with copper. This property allows it to be used for thermocouple, thermocouple extension and compensating leads. It is easily soldered, welded, and offers good corrosion resistance against atmospheric conditions.
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National Enterprise
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