Solder

Solder, or solder wire, is a fusible metal alloy with a low temperature melting point used to permanently join two metals that have a higher melting point. Soldering is a process commonly used in the electronics industry for PCBs and electronics components, jewellery manufacturing and pipework in plumbing, with the majority of soldering carried out through the use of a soldering iron.

Our range of solder wire contains products from industry leaders like Felder Lottechnik, MBO, Multicore, Weller and RS PRO, with a variety of wire diameters (ranging from 0.23mm to 7mm) and lead content (0% to 70%).

What is solder made of?

The alloys used in solder vary depending on the manufacturer and the intended application, as different applications require different materials.

Soft solder is commercially available at varying concentrations of tin, ranging from 5% to 70%. Higher percentages of tin provide greater tensile strength, with a 60/40 balance being a popular composition.

Lead-free solder is also available, created due to the call to remove or reduce hazardous materials in consumer electronics, which often has a lower melting point than lead-based alloys. Lead-free solder wire may contain copper, zinc, tin, silver, bismuth, antimony and/or traces of other materials depending on its intended use.

What is flux?

In order to prevent the oxidation of the metal alloy and ensure a strong electrical connection and high mechanical strength, soldering wire contains a flux, which can be made of different materials. A flux is a chemical agent that will help to reduce metal oxides (return oxidised metals to their original state) and seal out air from the join, preventing any further oxidation.

There are two main types of flux: acid/active, which contains strong acids and is used in plumbing and metal mending, and rosin/passive, which is used in electronics.

What forms of solder are there?

The majority of solder comes in wire form, with a range of wire diameters available to suit various applications and joints. Solder granules are ideal for soldering machines and tinning crucibles, but these small pellets of solder popular for jewellery making too. Paste solder is ideal for use in printed circuit boards (PCBs) and connecting surface mount electronic components. It is a sticky paste which is applied to a board by printing or painting.


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Viewing 101 - 120 of 188 products
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Description Price Model Number Wire Diameter Percent Lead Product Form Melting Point Percent Silver Percent Tin Flux Type Product Weight Flux Content Percent Percent Copper
RS Stock No. 185-0115
Mfr. Part No.288850
BrandMulticore
PHP2,739.22
Each
units
Hydro-x 0.7mm 40% Wire 183-188°C - 60% Halogen Free 500g 2% -
RS Stock No. 229-4308
Mfr. Part No.288716
BrandMulticore
PHP1,701.12
1 Reel of 1
Reel(s)
C511 0.7mm 40% Wire 183-188°C - 60% Water Wash 250g 3% -
RS Stock No. 554-939
Mfr. Part No.291482
BrandMulticore
PHP1,946.08
1 Reel of 500 Gram(s)
Reel(s)
362 1.2mm 48.5% Wire 183-215°C - 50% Activated Rosin 500g 3% 1.5%
RS Stock No. 547-271
Mfr. Part No.SN60 PB40 10/10 SANS NETTOYAGE RT15 - 500G
BrandMBO
PHP1,975.82
1 Reel of 500 Gram(s)
Reel(s)
SN60 PB40 1mm 40% Wire 183°C - 60% Rosin 500g 1.5% -
RS Stock No. 555-099
Mfr. Part No.291345
BrandMulticore
PHP2,741.56
1 Reel of 500 Gram(s)
Reel(s)
Alusol 1.6mm 80% Wire 178-279°C 2% 18% Activated Rosin 500g 2% -
RS Stock No. 547-316
Mfr. Part No.SN60 PB40 7/10 SANS NETTOYAGE RT15 - 500G
BrandMBO
PHP2,183.60
1 Reel of 500 Gram(s)
Reel(s)
SN60 PB40 0.7mm 40% Wire 183°C - 60% Rosin 500g 1.5% -
RS Stock No. 788-3710
Mfr. Part No.T0051388499
BrandWeller
PHP1,950.30
1 Reel of 1
Reel(s)
WSW SAC LO 0.5mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%
RS Stock No. 555-244
Mfr. Part No.SN96.5 AG3 CU0.5 7/10 A11 - 500G
BrandMBO
PHP4,750.84
1 Reel of 500 Gram(s)
Reel(s)
SN96.5 AG3 CU0.5 0.7mm - Wire 217°C 3% 96.5% Rosin 500g 2.2% 0.5%
RS Stock No. 104-7498
Mfr. Part No.20.601.51037
PHP505.82
Each
units
- 1.5mm 40% Wire 183°C - 60% Rosin Based 100g 3.5% -
RS Stock No. 547-332
Mfr. Part No.SN60 PB 7/10 - 3 CANAUX A11 - 500G
BrandMBO
PHP1,755.59
1 Reel of 500 Gram(s)
Reel(s)
SN60 PB 0.7mm 40% Wire 183°C - 60% Rosin 500g 2% -
New
RS Stock No. 201-3546
Mfr. Part No.51760720 37
PHP2,215.85
Each
units
- 0.75mm - Wire 217° C - - - 250g 3.5% -
RS Stock No. 547-350
Mfr. Part No.GRENAILLE SN63 PB37
BrandMBO
PHP1,481.24
Each
units
- - 37% Granules 183°C - 63% Resin 500g - -
RS Stock No. 136-3148
Mfr. Part No.555294052037
PHP1,708.12
Each
units
555294052037 0.5mm - Wire 227°C - 99.3% Colophony (Rosin) Free 250g 3.5% 0.7%
New
RS Stock No. 201-3545
Mfr. Part No.51760520 37
PHP2,437.11
Each
units
- 0.75mm - Wire 217° C - - - 250g 3.5% -
RS Stock No. 104-7218
Mfr. Part No.18.601.04037
PHP3,147.77
Each
units
- 1mm 40% Wire 183°C - 60% Rosin Based 1000g 2.5% -
RS Stock No. 104-7527
Mfr. Part No.20.601.54037
PHP3,097.19
Each
units
- 1.5mm 40% Wire 183°C - 60% Rosin Based 1000g 3.5% -
RS Stock No. 104-7606
Mfr. Part No.20.721.02037
PHP1,861.29
Each
units
- 1mm 36% Wire 179°C 2% 62% Rosin Based 250g 3.5% -
RS Stock No. 104-7454
Mfr. Part No.20.601.01037
PHP499.60
Each
units
- 1mm 40% Wire 183°C - 60% Rosin Based 100g 3.5% -
RS Stock No. 104-7252
Mfr. Part No.18.601.54037
PHP3,097.19
Each
units
- 1.5mm 40% Wire 183°C - 60% Rosin Based 1000g 2.5% -
RS Stock No. 547-360
Mfr. Part No.300AG 10/10 CR2 - 500G
BrandMBO
PHP3,086.17
1 Reel of 500 Gram(s)
Reel(s)
300AG 1mm 93.5% Wire 296°C 1.5% 5% Rosin 500g 2.2% -
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