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Sn63Pb37 SW21

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

  • Contains Pb
  • High activity
  • Organic
  • Contains halides

Alloy designation in accordance with ISO 9453:2014: Sn63Pb37E*
Other known alloy markings: S-Sn63Pb37E*
Product type: Cored solder wire (with flux)
Flux: SW21

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2. Chemical characteristics

2.1. Tin content: 63,0 ±0,5%
2.2. Lead content: rest
2.3. Composition and permissible impurities according to ISO 9453:2014:
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 ???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

4. SW21 flux

Organic, water-soluble based, halide activated flux. Special flux composition offers good solderability on various metal surfaces excluding aluminum and its alloys. Residues of flux after soldering are water washable if cleaning is necessary or required. The flux is exceptionally well suited for flame soldering.

Flux type acc. to DIN 8511 SW25
Flux type acc. to ISO 9454 2.1.2B
Flux type acc. to J-STD-004 ORH1
Flux content 2,0 +/- 0,2%; 3 cores of flux (1 core or other flux content on request)
Halide content > 2,0%
Acid Value not applicable
SIR test (PN-EN ISO 9455-17) no data
Washability Recommended washing

5. Product description

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

120 pcs /6 kg(50 g reels) cartons
60 pcs /6 kg(100 g reels) cartons
5 kg (250 g and 500 g reels) cartons
10 kg( 1 kg reels) cartons

other on request

Expiration date Three years from the end of the year of production for example: batch 61112233 = date of production 2016, date of expiry 2019.
Storage In original packaging at 5-20°C.
The recommended humidity level is 20-60%.
Keep away from strong oxidizing agents, acids, alkaline agents and beyond the reach of children.
Markings Reels and cartons marked with alloy type, flux type, diameter, net weight and batch number.
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Files to download:

Sn63Pb37 SW21 - Technical data sheet

Sn63Pb37 SW21 - Safety data sheet

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

PRODUCTS

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PRODUCTS

Find products by type

  • Solder wires
  • Solder bars, rods
  • Solder pastes
  • Soldering fluxes
  • Others
  • With or without flux. Diameters starting from 0.1 mm.

    More
  • Materials used in processes such as wave soldering.

    More
  • Cynel pastes made from the finest quality powder manufactured on site in the Warsaw Factory.

    More
  • Substances ensuring wettability and spreadability of solder.

    More
  • Accessories and DIY materials.

    More
Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.