Shanghai Tankii Alloy Material Co.,Ltd
| Payment Terms | T/T, L/C, Western Union |
| Supply Ability | 5000kg/month |
| Delivery Time | 5~10 days |
| Packaging Details | In small bucket , Wooden case |
| Material | Nickel alloy |
| Size | 0.2~1.42mm |
| HS | 7408229000 |
| Chemical | Ni 41~43%, Fe Balance |
| Cu | 24-26% |
| Type | Bare |
| Application | Sealing material |
| Color | Red, light golden, bright |
| Product name | Dumet Wire 0.35mm Red Color Used as Sealing Material For All Kinds of Light Bulb |
| Brand Name | Tankii |
| Model Number | Dumet |
| Certification | ISO |
| Place of Origin | China Mainland |
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Product Specification
| Payment Terms | T/T, L/C, Western Union | Supply Ability | 5000kg/month |
| Delivery Time | 5~10 days | Packaging Details | In small bucket , Wooden case |
| Material | Nickel alloy | Size | 0.2~1.42mm |
| HS | 7408229000 | Chemical | Ni 41~43%, Fe Balance |
| Cu | 24-26% | Type | Bare |
| Application | Sealing material | Color | Red, light golden, bright |
| Product name | Dumet Wire 0.35mm Red Color Used as Sealing Material For All Kinds of Light Bulb | Brand Name | Tankii |
| Model Number | Dumet | Certification | ISO |
| Place of Origin | China Mainland | ||
| High Light | Light Bulb Bare Dumet Wire ，Sealing Material Dumet Wire ，Dumet Lamp Wire 0.35mm | ||
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.
In order to produce dumet wire, some key processes must be precisely controlled.
In the set-up line, the cladding is realized: a Copper clad on a core wire (e.g. Nickel-Iron).
This Copper cladded wire is welded to achieve an endless length and drawn to obtain the requested diameter.
Finally the surface of the dumet has to be treated to guarantee a good adhesion to the glass.
Depending on the application requirements this well-defined surface treatment can be done in either ways: Borating, oxidizing or nickel-plating.
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
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1981
Total Annual:
8000000-100000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb... Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribb...
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