| Type | ingredient (WT%) | Melting point(ºC) | Density (g/cm3) | Use | Work (ºC) |
Lead products
| Sn63Pb37 | 183 | 8.4 | Suitable for demanding circuit boards, such as: high-precision instruments, electronics industry, micro-technology, aviation industry and other products welding | 340±20 |
| Sn60Pb40 | 183-190 | 8.5 | 340±20 |
| Sn55Pb45 | 183-203 | 8.7 | 350±20 |
| Sn50Pb50 | 183-215 | 8.9 | Applicable to the requirements of ordinary circuit boards, such as: home appliances, electrical instrumentation, automotive electronics, hardware products and other products welding | 350±20 |
| Sn45Pb55 | 183-227 | 9.1 | 360±20 |
| Sn40Pb60 | 183-238 | 9.3 | 370±20 |
| Sn35Pb65 | 183-248 | 9.5 | 370±20 |
| Sn30Pb70 | 183-258 | 9.7 | Suitable for relatively low requirements of the circuit board, such as: hardware equipment, automotive water tank lighting bulbs, cable connectors and other products welding | 380±20 |
| Sn25Pb75 | 183-266 | 9.9 | 400±20 |
| Sn20Pb80 | 183-279 | 10.1 | 420±20 |
| Lead-free products | Sn99.7Cu0.3 | 227 | 7.4 | Applicable to high-end electronic products, export quality of electronic, electrical industrial products | 380±20 |
| Sn99Ag0.3Cu0.7 | 217-221 | 7.37 | 380±20 |
| Sn96.5Ag3.0Cu0.5 | 217-221 | 7.37 | 380±20 |
| Sn95Sb5 | 245 | 7.39 | Suitable for welding, need to pass high pressure test or aging test under high temperature | 380±20 |
| Sn99.95 | 232 | 7.41 | Applicable to all kinds of circuit board plating and used in tin furnaces with excessive copper to reduce copper content | 285±10 |
| Sn42Bi58 | 138 | 8.5 | Thermal fuses for thermal fuses, thermal protectors, thermal fuses | 230±20 |
Complaint
