• Banner Products

Pb60Sn40 SW21

An alternative to the most popular solder wire (Sn60Pb40) with flux, for professional use.

  • Содержат свинец
  • Высокая активность
  • На основе органических соединений
  • Содержит галогеныs

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
Density9,28 g/cm3
Electrical conductivity0,171 μΩ•m
Thermal conductivity44 W/m•K
Tensile strength380 kgf/cm2
Elongation at break25%
Hardness12 HB
Suggested operating temperatures340 - 420°C

4. SW21 flux

acc. to DIN 8511SW25
acc. to ISO 94542.1.2B
acc. to J-STD-004ORH1
Flux content2,0 +/- 0,2% other on request
Halide content> 2 %
Acid ValueNot available
SIR test (PN-EN ISO 9455-17)No data avaliable
WashabilityRecommended 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


50 g – cartons 120 pcs.
100 g – cartons 60 pcs.
250 g – cartons 5 kg
500 g – cartons 5 kg
1 kg – cartons 10 kg

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:

Pb60Sn40 SW21 - karta techniczna

Pb60Sn40 SW21 - karta charakterystyki

Physical, mechanical and chemical properties available in the TDS (download above).

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.