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Product Introduction
The 63A solder wire produced by Singway is made of Yunnan pure tin ingot and pure lead, with low melting point, good activity and stable automatic welding performance. The thermal shock caused by welding to components is reduced, the insulation resistance is high, and the performance is excellent.

Moderate melting point: Sn63Pb37 solder wire has a low melting point, which is suitable for low-temperature welding, which can reduce the thermal shock caused by welding components and reduce the risk of damage to components.
Good activity: Sn63Pb37 solder wire has good activity and can quickly react with welding materials to provide stable welding performance.
Automatic welding performance is stable: Sn63Pb37 solder wire is suitable for automatic welding machine, its performance is stable, can ensure the consistency of welding quality.
High insulation resistance: Sn63Pb37 solder wire has a high insulation resistance, can effectively prevent current leakage and short circuit and other problems.
Excellent performance: Sn63Pb37 solder wire has good welding performance and reliability, solid solder joint, can meet various welding needs.
Basic Info.
product name | 63A lead solder wire | brand | singway |
Model NO. | 6337 | Material | Sn63Pb37 |
Melting Point | 183±2℃ | flux | 2.0%-4.0% |
Specific gravity | 8.39±0.1g/cm3 | Diameter of the line | 0.4-4.0MM |
Shape | thread | Single Volume Heavy | 200 g/roll |
Packaging | 10 rolls/case | Carton Packaging | 33.8*16*6cm |
Product use | Electronic component welding | Origin | China |
Product Specifications
| Solder wire specification | Type of solder wire | ||||
Ingredient (WT%) | Flux-cored solder wire | Solid core solder wire | Wash free solder wire | Three-and five-core porous solder wire | |
Sn63Pb37 | √ | √ | √ | √ | √ |
| Sn60Pb40 | √ | √ | √ | √ | √ |
| Sn50Pb50 | √ | √ | √ | √ | √ |
| Sn45Pb55 | √ | √ | √ | √ | √ |
Sn40Pb60 | √ | √ | √ | √ | √ |
Product Features
Electrolytic material, bright solder joint, good wetness, easy to tin.
Solder wire/tin wire diameter can be customized according to customer (0.4-4.0mm).
Composite flux, welding does not splash, can be customized.
The flux distribution is uniform, and there is no broken flux in the wire core.
Winding neatiy, no knot, easy welding operation, high efficiency.
Product specification

Product Advantage
Selected high purity cloud tin
The raw material is Yunnan tin ingot
No recycled tin,high purity,less impurities.
Strictly according to the national standard production
Strictly in accordance with the national and international European Union ROHS standards, SONY standard lead(Pb)<100PPM
MORE THAN 10 INSPECTION PROCEDURES
Before leaving the factory, the products are tested by metal content direct reading spectrometer, product performance weldability and other more than 10 product tests, strictly protect the quality of the factory, to ensure that the qualified inspection report is shipped.
FOUR QUALITY SYSTEM CERTIFICATION
The production plant has passed ISO9001 quality system, TS16949 automobile quality system, ISO14001 environmental management, OHSAS18001 occupational health and safety management system, and the products have been certified by SGS factory, in line with ROHS, REACH and other standards.
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. Widely used in wire and cable industry, unmanned aircraft aerospace field, communication industry, power manufacturing industry, new energy manufacturing industry, automotive industry, lighting industry, high-precision electronic device manufacturing, 3C product manufacturing and other electronic technology manufacturing industry.


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