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Sn-Pb Solder
The Sn-Pb series solders had ever been the most popular solder alloys that showed excellent wettability and reliability. In recent years, it has been replaced by the Pb-free solder alloy due to the toxic of Pb, however, in many special applications, for example, the military equipments, the automotive electronics, the Sn-Pb solder is still adopted.
Zhongya(Tianjin) could provide about 40 kinds of Sn-Pb solder alloys with the shape of wire, bar, foil. The available melt point range is from 58-316℃.
Specially, the traditional Sn-Pb eutectic solder wires and solder bar (for wave soldering and dip soldering process) products which showed excellent mechanical properties and wettability.
5-1 Type of Sn-Pb Solder Wires
5-5 Sn-Pb Eutectic Series Solders Specification
| NO. | Series | Solidus(℃) | Liquidus(℃) | Resistivity Ω·m㎡/m | Products Status | |
| Wire | Bar | |||||
| 01 | S-Sn65Pb | 183 | 186 | 0.122 | Ф0.3-3.0mm | △ |
| 02 | S-Sn63Pb | 183 | 183 | 0.141 | Ф0.3-3.0mm | △ |
| 03 | S-Sn63PbAg | 183 | 183 | 0.120 | Ф0.3-3.0mm | △ |
Note:※ means lead-free solder, △ represents the available products, and stands for unsupplied products.
5-6 Sn-Pb Solder Alloy's Specification
| NO. | Series | Solidus(℃) | Liquidus(℃) | Resistivity Ω·m㎡/m | Products Staus | |
| Wire | Bar | |||||
| 01 | S-Sn95Pb | 183 | 224 | — | — | △ |
| 02 | S-Sn90Pb | 183 | 215 | — | — | △ |
| 03 | S-Sn60Pb S-Sn60PbSb | 183 | 190 | 0.145 | Ф0.5-3.0mm | △ |
| 04 | S-Sn55Pb | 183 | 203 | 0.160 | Ф0.8-3.0mm | △ |
| 05 | S-Sn50Pb S-Sn50PbSb | 183 | 215 | 0.181 | Ф0.8-3.0mm | △ |
| 06 | S-Sn45Pb | 183 | 227 | — | Ф0.8-5.0mm | △ |
| 07 | S-Sn40Pb S-Sn40PbSb | 183 | 238 | 0.170 | Ф1.0-5.0mm | △ |
| 08 | S-Sn35Pb | 183 | 248 | — | Ф1.2-5.0mm | △ |
| 09 | S-Sn30Pb S-Sn30PbSb | 183 | 258 | 0.182 | Ф1.2-5.0mm | △ |
| 10 | S-Sn25PbSb | 183 | 260 | 0.196 | Ф1.5-5.0mm | △ |
| 11 | S-Sn20Pb S-Sn18PbSb | 183 | 279 | 0.220 | Ф1.5-2.0mm | △ |
| 12 | S-Sn40PbSbP | 183 | 238 | 0.170 | Ф0.5-3.0mm | △ |
| 13 | S-Sn60PbSbP | 183 | 190 | 0.145 | Ф0.5-3.0mm | △ |
Note:※ means lead-free solder, △ represents the available products, and stands for unsupplied products.
