Sn99.3Cu0.7 lead-free solder wire and solder bar, containing 99.3% tin and 0.7% copper, are conventional environmentally-friendly solders, adopting lead-free soldering technology. The diameter of the solder wire can reach over 0.2mm. It is a typical high-temperature lead-free solder with a melting point of about 227℃. It is suitable for environmentally-friendly wave soldering and dip soldering processes. During soldering, it has good fluidity and can effectively reduce technical problems such as bridging, icicles, and solder splashing, improving soldering quality and efficiency. It has a wide range of applications, covering the environmentally-friendly electronic assembly industry, safeguarding the quality of electronic products. It can also be used for fixing silicone toys, making the toy structure more stable. With its excellent performance and stable quality, it has been recognized by numerous users.
Chemical Composition
ElementContent
| Tin | Copper | Silver | Antimony | Bismuth | Zinc | Iron | Aluminum | Others | Cadmium |
| 99.3±0.1 | 0.7±0.1 | < 0.01 | < 0.0001 | < 0.02 | < 0.01 | < 0.005 | < 0.02 | < 0.02 (each), < 0.03 (total) | < 0.002 |
The EU RoHS Directive came into force on July 1, 2006, mandating that all electronic products sold on the European market must be lead-free. The Sn99.3Cu0.7 lead-free solder wire produced by our company can meet the EU RoHS standards, as evidenced by the above product data information.
Product Characteristics
Good Electrical Conductivity
This Sn99.3Cu0.7 lead-free solder wire has a copper content of 0.7%. Therefore, during the soldering process of electronic components, it will generate a relatively high resistivity, which is especially suitable for soldering copper wires and other copper products.
High Melting Point
Our product has a high melting point and is very suitable for soldering electronic devices at high temperatures. The combination of tin and copper endows this environmentally-friendly lead-free so
