An alternative to the most popular solder wire (Sn60Pb40) with flux, for professional use.
Alloy designation in accordance with ISO 9453:2014: Pb60Sn40 (114)
Product type: Cored solder wire
Flux: SW21
1. General characteristics
The product is intended for professional use.
The solder was produced in the first smelt of tin and lead. The composition of the solder complies with the ISO 9453:2014 standard. It is leaded alloy for manual and automatic processes where meeting the requirements of the RoHS2 Directive is not required. SW21 is organic, water-soluble based, halide activated flux. The solder is soldering most metals except aluminum and stainless steel. If used in electronics and electrotechnics it is recommended to remove flux residues. Residues of flux after soldering are water washable.
2. Chemical compositions, mass fraction in %
| Sn | Pb | Sb | Bi | Cd | Cu | Au | In | Ag | Al | As | Fe | Ni | Zn |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 39,50 - 40,50 | rest | max 0,20 | max 0,10 | max 0,002 | max 0,08 | max 0,05 | max 0,10 | max 0,10 | max 0,001 | max 0,03 | max 0,02 | max 0,01 | max 0,001 |
3. Physical characteristics
| Melting point: (solidus / liquidus) | 183 / 238°C |
| Density | 9,28 g/cm3 |
| Electrical conductivity | 0,171 μΩ•m |
| Thermal conductivity | 44 W/m•K |
| Tensile strength | 380 kgf/cm2 |
| Elongation at break | 25% |
| Hardness | 12 HB |
| Suggested operating temperatures | 340 - 420°C |
4. SW21 flux
| acc. to DIN 8511 | SW25 |
| acc. to ISO 9454 | 2.1.2B |
| acc. to J-STD-004 | ORH1 |
| Flux content | 2,0 +/- 0,2% other on request |
| Halide content | > 2 % |
| Acid Value | Not available |
| SIR test (PN-EN ISO 9455-17) | No data avaliable |
| Washability | Recommended washing |
5. Other information
| Available diameters |
• 0,80 • 0,90 • 1,00 • 1,20 • 1,50 • 1,60 • 2,00 • 2,50 • 3,00 • 4,00 mm other on request |
| Packed |
50 g – cartons 120 pcs. other on request |
| Expiration date |
3 years from the end of the year of production for example: batch 61112233 = date of production 2016, date of expiry 2019 |
| Label | Reels and cartons marked with alloy type, flux type, diameter, net weight and batch number. |
| Storage | Store at room temperature, in a dry place and beyond the reach of children. |
Files to download:
Reflow Soldering
Wave Soldering
Selective Soldering
