RoHS solder stick is a lead-free soldering material designed to meet the strict requirements of the Restriction of Hazardous Substances (RoHS) directive. It is commonly used in electronics manufacturing and repair to create reliable, strong solder joints without harmful heavy metals like lead. Made from alloys such as tin, silver, and copper, RoHS solder sticks offer excellent solderability and durability, ensuring efficient bonding in both surface mount and through-hole applications. These sticks are easy to handle and compatible with standard soldering irons or torches, making them ideal for professionals and hobbyists alike. Using RoHS solder sticks not only helps manufacturers comply with environmental regulations but also promotes safer working conditions by eliminating toxic substances. The lead-free nature may require slightly higher soldering temperatures, so proper heat management is important to achieve optimal results.
| Composition | Melting Point °C | Tensile Strength (Mpa/min) |
|---|---|---|
| RoHS solder stick Sn95.5/Ag4.0/Cu0.5 | 217–218 | 37 |
| RoHS solder stick Sn96.5/Ag3.0/Cu0.5 | 217–219 | 37 |
| RoHS solder stick Sn99/Ag0.3/Cu0.7 | 225–227 | 25 |
| RoHS solder stick Sn99.7/Ag0.3 | 225 | — |
| RoHS solder stick Sn99.2/Cu0.6/Ag0.1 | 217–228 | 32 |
| RoHS solder stick Sn99.3/Cu0.7 | 227 | 28 |
| RoHS solder stick Sn99/Cu1.0 | 227 | 32 |
| RoHS solder stick Sn95/Sb5 | 236–243 | 35.2 |
| RoHS solder stick Sn80/Zn20 | 200 | — |