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[China]
Trade Verify
Address: No. 388 Pangu Road, Baoshan district, Shanghai, 201999, China
Contact name:Martin Lee
Shanghai Tankii Alloy Material Co.,Ltd |
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Verified Suppliers
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Dumet Wire 0.35mm Red Color Used as Sealing Material For All Kinds of Light Bulb
Ni 41~43%, Fe Balance
Dumet wire is the basic metal component of a Lead-in-Wire providing the required vacuum tight glass-to-metal seal. Dumet consists of a base wire and a sheath. The ratio of both
compounds should be in well-balanced proportions. Only then is it
guaranteed to obtain a vacuum tight conductor through glass. This
principle is used mainly in the lighting and diode production.
Dumet wire consists of a nickel-iron core in an
oxygen-free-high-conductivity copper sheath. It is available in
various surface finishes: Electrically oxidised, borax coated,
nickel plated, bare (uncoated).
Borated surface finish Dumet is used in Lead-in-wires for lamps.
Dumet forms a glass-to-metal seal while manufacturing these lamps.
The oxidised Dumet is used in Lead-in-wires, diodes and capacitor
slug leads application.
Dimeter 0.2mm-0.6mm
| Ni% | C% | Mn% | Si% | S% | P% | Fe% | |
| Core | 41 - 43 | 0.05 max | 1.0 max | 0.30 max | 0.02 max | 0.02 max | Rest |
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 | |||
Tankii Package:
Carton Box, Wooden case
Delivery time: 5~20 days as per the order qty
