Sn63Pb37 PRO
An alternative to the most popular solder wire (Sn60Pb40) with flux, for professional use.
Alloy designation in accordance with ISO 9453:2020: Sn63Pb37E (102)
Product type: Cored solder wire
Flux: PRO
1. General characteristics
The product is intended for professional use. The solder Sn63Pb37E* was produced in the first smelt of tin and lead. The composition of the solder complies with the ISO 9453 standard. The solder contains rosin and halogen free flux. The flux PRO has good spread and its J-STD classification is ROL0. It is basic leaded alloy for manual, automatic and robotic processes used in industrial applications in electronics and electrical engineering, where meeting the requirements of the RoHS Directive is not required.
* Higher cleanliness class.
2. Chemical compositions, mass fraction in %
| Sn | Pb | Sb | Bi | Cd | Cu | Au | In | Ag | Al | As | Fe | Ni | Zn |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 62,50 - 63,50 | rest | max 0,05 | max 0,05 | 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°C |
| Density | 8,40 g/cm3 |
| Electrical conductivity | 0,145 μΩ•m |
| Thermal conductivity | 50 W/m•K |
| Tensile strength | 525 kgf/cm2 |
| Elongation at break | 37% |
| Hardness | 17 HB |
| Suggested operating temperatures | 340 - 400°C (recommended soldering temperature above 380 °C) |
4. PRO flux
| acc. to DIN 8511 | SW32 |
| acc. to ISO 9454 | 1.1.3.B |
| acc. to J-STD-004 | ROL0 |
| Flux content | 2,5 +/- 0,2% other on request |
| Halide content | 0,0 % |
| Acid Value | 305 ±10 mg KOH/g |
| Corrosiveness | noncorrosive |
5. Other information
| Available diameters |
0,25 • 0,38 • 0,50 • 0,56 • 0,70 • 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 |
100 g – cartons 30 pcs. / 3 kg other on request |
| Expiration date | 5 years from the end of the year of production. for example: batch 61112233 = date of production 2016, date of expiry end of 2021 |
| 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:
Sn63Pb37 PRO - Technical data sheet (TDS)
Sn63Pb37 PRO - Safety data sheet
Physical, mechanical and chemical properties available in TDS (download above).
