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Dumet wire used as All kinds of light bulb

Basic Info

Model No.:  Dumet

Product Description



Model NO.: Dumet


Material: fe ni


PCD: -


Hole: -


Specification: negotiable


HS Code: 7408229000




Product Type: Wire


Carbon Content: Low Carbon


ET: -


Trademark: TANKII


Origin: China


Dumet wire used as All kinds of light bulbDumet Wire



Ni 41~43%, Fe Balance



Dumet is a kind of permanent matching with soft glass sealing double metal alloy materials, has a good thermal expansion coefficient, mechanical properties, physical properties, etc.Widely used in electric vacuum components, electric light source device, semiconductor discrete devices and vacuum electronics.

Dumet oxide

Product group Use Specifications Technical parameters


Dumet oxide
For semiconductor use such as Vacuum electronic products of Glass diode Do-34,Do-35,LL-34 and Do-41

Φ0.2-1.42mm
Ni(core wire) 41-43% 46-48%
Cu 20-25% 14-19%
Tensile strength ≤65kg/mm²
elongation >20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:82-92*10-7cm/cm/ºC


White dumet

Product group Use Specifications Technical parameters


White dumet

Insert type bulb for auto light and motorcycle light


Φ0.2-0.5mm
Ni(core wire) 41-43%
Cu 24-26%
Tensile strength ≤65kg/mm²
elongation ≥20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC


Bright (anti humidity) dumet

Product group Use Specifications Technical parameters
Bright (anti humidity) dumet
Lighting energy-saving lamps, ordinary lamp, small round bulb etc

Φ0.3-0.5mm
Ni(core wire) 41-43%
Cu 21-30%
Tensile strength ≤65kg/mm²
elongation ≥20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC


Yellow dumet

Product group Use Specifications Technical parameters


Yellow dumet

Energy-saving lamps, auto lamp light use


Φ0.3-0.5mm
Ni(core wire) 41-43%
Cu 23-28%
Tensile strength ≤65kg/mm²
elongation ≥20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC










Red dumet

Product group Use Specifications Technical parameters


Red dumet
General bulb, holiday light, mini bulb, Christmas lights, small round bulb

Φ0.3-0.5mm
Ni(core wire) 41-43%
Cu 21-23%
Tensile strength ≤65kg/mm²
elongation ≥20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC


Boron free dumet

Product group Use Specifications Technical parameters

Boron free dumet

Cold cathode lamp and all kinds of special lamp decoration


Φ0.18-0.6mm
Ni(core wire) 41-43%
Cu 21-30%
Tensile strength ≤65kg/mm²
elongation ≥20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC


Tinge dumet

Product group Use Specifications Technical parameters


Light tinge sorts

Execution for LCD , computer and TV display screen


Φ0.3-1.2mm
Ni(core wire) 41-43%
Cu 15-25%
Tensile strength ≤65kg/mm²
elongation ≥18-20%
Expansion coefficient Radial:82-92*10-7cm/cm/ºC
Axial:62-65*10-7cm/cm/ºC

Contact us if you need more details on Dumet Wire. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Nickel Iron Wire、Electrical Resistance Strip. If these products fail to match your need, please contact us and we would like to provide relevant information.

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