Tin Phosphorus Master Alloy
Commonly used in the production of electronic solders such as the SAC range of alloys, the introduction of a small amount of phosphorus promotes inhibition of oxide formation thus giving a superior and more aesthetic solder joint as well as reducing dross formation in solder baths.
Our Tin Phosphorus Master Alloys are made only from 99.9% virgin Tin and red Phosphorus, giving a dependable and consistent analysis.
Available in 5%, 3% and 1% Phosphorus, balance Tin.
Available Forms
4kg waffle plate which is easily broken into small chunks for accurate additions.
5kg Ingots
2.5kg Ingots
80g discs
Melting Range
| 95Sn-5P | 97Sn-3P | 99Sn-1P |
|---|---|---|
| 520 TO 540°C | 475 TO 495°C | 375 TO 395°C |
| 968 TO 1004°F | 887 TO 923°F | 707 TO 743° |
Specifications
| Tin | (Sn) | 94.5 % to 95.5% | 96.5 % to 97.5% | 98.5 % to 99.5% |
|---|---|---|---|---|
| Phosphorus | (P) | 4.5 % to 5.5 % | 2.5 % to 3.5 % | 0.5 % to 1.50 % |
| Tin + Phosphorus | (Sn+P) | 99.9% Min | ||
| Antimony | (Sb) | 0.030 % Max | ||
| Lead | (Pb) | 0.030 % Max | ||
| Bismuth | (Bi) | 0.010 % Max | ||
| Copper | (Cu) | 0.020 % Max | ||
| Arsenic | (As) | 0.010 % Max | ||
| Iron | (Fe) | 0.010 % Max | ||
| Cadmium | (Cd) | 0.001 % Max | ||
| Zinc | (Zn) | 0.001 % Max | ||
| Other | —– | 0.010 % Max | ||