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Product Introduction
This lead-free environmental protection low-temperature solder wire utilizes proprietary technology and equipment to transform brittle tin-bismuth eutectic alloy into a low-temperature welding material solder wire with a melting point as low as 138°C. It is particularly suitable for the lead-free packaging of sensitive electronic components at low temperatures.
This lead-free solid core low temperature solder wire not only adheres to stringent environmental standards but also provides efficient and reliable soldering performance at lower working temperatures, making it an indispensable material in modern electronics manufacturing.
By using this advanced lead-free solid core low temperature solder wire, you can effectively reduce environmental impact while ensuring that sensitive electronic components are packaged under safe and stable conditions. This product is the perfect choice for companies striving for high quality and sustainable development.
Singway uses its own technology and equipment to process brittle tin bismuth eutectic alloy into solid core wire with a melting point of 138 ° C, which can meet the packaging of electronic components that are more sensitive to welding temperature, and with unique additives, achieve superior welding performance.
(Note: Solder paste should be used for welding)
Suitable for all kinds of automatic soldering machines and manual welding with high quality requirements.
Basic Info.
product name | Solid core low temperature soldering wire | brand | singway |
Model NO. | 42581 | Material | Sn42Bi58 |
Melting Point | 138±2℃℃ | flux | Contains no rosin |
Specific gravity | 7.42g/cm3 | Diameter of the line | 0.4-4.0MM |
Shape | filamentous | Packaging | 10 rolls/case |
| Product use | Welding electronic products that are not resistant to high temperatures | Origin | China |
Product Specifications
Ingredient (WT%) | Features | Diameter of the line |
Sn42Sb58 | Solid Core | 0.4MM~4.0MM |
Sn42Sb58 | Drug Core |
Product Features

Welding and
tinning fast

Excellent wettability

138°C low melting point

Tin-bismuth alloy environment-friendly lead-free

Welding and
tinning fast

Vacuum independent packaging

Increase productivity

High reliability
Product advantages
| 1 | Low melting point |
| the melting point of low-temperature solder wire is relatively low, and the melting point is 138 ° C, which is much lower than the melting point of traditional solder wire. This allows the low-temperature solder wire to complete the welding at a lower temperature, avoiding the high temperature impact on the welding part, especially for temperature-sensitive components and materials. |
| 2 | Good protection |
| low temperature solder wire has good protection performance, can form a protective film during the welding process, prevent oxygen and other harmful substances on the oxidation and corrosion of welded joints, improve the quality and reliability of welded joints. |
| 3 | Environmental protection and energy saving |
| Because the welding temperature of the low-temperature solder wire is low, the energy consumption is reduced and the energy cost in the welding process is reduced. In addition, low-temperature solder wire is usually lead-free formula, does not contain harmful substances, is harmless to the environment and human health, and meets environmental protection requirements. |
| 4 | The production process is mature |
| the production process of low-temperature solder wire is relatively mature, and large-scale production and high-efficiency production can be achieved. The production process is relatively simple and can adapt to various specifications and requirements of the production of solder wire. |
Product specification

Applicable to the industry
Singway Soldering wire series products are suitable for various high quality requirements of automatic soldering machine soldering process and manual soldering iron soldering process. Lead-free low-temperature solder wire is widely used in electronics, electrical appliances, instruments and other fields, especially for the welding of temperature-sensitive components and materials, such as electronic components, plastics, ceramics and so on.

Service Capability
01 Direct sales from the factory
Self-produced and self-marketing,complete categories.
02 Ensuring a Stable Supply
Strong capacity guarantee,standing stock sufficient guarantee delivery time.
03 Technical expertise
Rrovide a full range of solder technology solutions.
04 Service assurance
One-to-one value-added service.

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