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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Omschrijving Prijs Model Number Wire Diameter Percent Lead Product Form Melting Point Percent Silver Percent Tin Flux Type Product Weight Flux Content Percent Percent Copper
RS-stocknr. 104-7331
Fabrikantnummer40.600.520.0737
€ 20,69
Each
Aantal stuks
ISO-Core ELR 0.5mm 40% Wire 183°C - 60% Rosin Based 250g 1% -
RS-stocknr. 555-272
FabrikantnummerSN96.5 AG3 CU0.5 5/10 A11 - 100G
FabrikantMBO
€ 24,33
1 Reel of 100 Gram(s)
Reel(s)
A11 0.5mm - Wire 217°C 3% 96.5% Rosin 100g 2.2% 0.5%
RS-stocknr. 226-209
Fabrikantnummer289751
FabrikantMulticore
€ 93,14
1 Reel of 250 Gram(s)
Reel(s)
C511 0.23mm - Wire +217°C 3.8% 95.5% Activated Rosin 250g 2% 0.7%
RS-stocknr. 800-7646
FabrikantRS PRO
€ 29,22
Each
Aantal stuks
NC600 1.01mm 40% Wire 183°C - 60% Rosin Based 500g 2.2% -
RS-stocknr. 756-8878
FabrikantRS PRO
€ 35,11
Each
Aantal stuks
- 0.7mm 40% Wire 183°C - 60% Colophony Free- ORL0 500g 2% -
RS-stocknr. 133-5620
Fabrikantnummer810866
FabrikantStannol
€ 26,07
Each
Aantal stuks
Kristall 511 1mm - Wire 227°C - 99.3% Rosin 250g 2.7 %, 3 % 0.7%
RS-stocknr. 624-6606
Fabrikantnummer551894052037
€ 26,67
Each
Aantal stuks
ISO-Core RA 0.5mm - Wire 227°C - 99.3% Rosin Based 250g 2.5% 0.7%
RS-stocknr. 756-8881
FabrikantRS PRO
€ 14,15
Each
Aantal stuks
NC600 1.27mm 40% Wire 183°C - 60% Rosin Based 250g 2.2% -
RS-stocknr. 133-5618
Fabrikantnummer810791
FabrikantStannol
€ 30,93
Each
Aantal stuks
Kristall 511 0.5mm - Wire 227°C - 99% Rosin 250g 2.7 %, 3 % 1%
RS-stocknr. 756-8907
FabrikantRS PRO
€ 37,51
Each
Aantal stuks
NC600 0.38mm 40% Wire 183°C - 60% Rosin Based 250g 2.2% -
RS-stocknr. 624-6684
Fabrikantnummer552094101037
€ 8,92
Each
Aantal stuks
ISO-Core EL 1mm - Wire 227°C - 99.3% Rosin Based 100g 3.5% 0.7%
RS-stocknr. 554-869
FabrikantnummerBAGUETTE SN99 AG0.3 CU0.7 - CARTON 10KG
FabrikantMBO
€ 46,54
330 Gram(s)
Aantal stuks
- - - Stick 217°C 0.3% 99% - 330g - 0.7%
RS-stocknr. 756-8890
FabrikantRS PRO
€ 45,45
Each
Aantal stuks
NC600 1.27mm 40% Wire 183°C - 60% Rosin Based 500g 2.2% -
RS-stocknr. 420-3095
Fabrikantnummer18.841.01037
€ 17,15
Each
Aantal stuks
ISO-Core RA 1mm - Wire 217°C 3.8% 95.5% Rosin Based 100g 2.5% 0.7%
RS-stocknr. 624-6628
Fabrikantnummer551894101037
€ 9,10
Each
Aantal stuks
ISO-Core RA 1mm - Wire 227°C - 99.3% Rosin Based 100g 2.5% 0.7%
RS-stocknr. 800-7649
FabrikantRS PRO
€ 63,25
Each
Aantal stuks
SAC305 NC600 0.25mm - Wire 217°C 3% 96.5% Rosin Based 250g 2.2% 0.5%
RS-stocknr. 756-8871
FabrikantRS PRO
€ 28,18
Each
Aantal stuks
- 0.4mm 40% Wire 183°C - 60% Colophony Free- ORL0 250g 2% -
RS-stocknr. 555-254
FabrikantnummerSN96.5 AG3 CU0.5 3,5/10 RT15 - 100G
FabrikantMBO
€ 30,00
1 Reel of 100 Gram(s)
Reel(s)
RT15 0.35mm - Wire 217°C 3% 96.5% Rosin 100g 1.5% 0.5%
RS-stocknr. 488-2452
Fabrikantnummer40.841.020.1037
€ 41,65
Each
Aantal stuks
ISO-Core ELR 1mm - Wire 217°C 3.8% 95.5% Rosin Based 250g 1% 0.7%
RS-stocknr. 555-311
FabrikantnummerSN96.5 AG3 CU0.5 10/10 RT15 - 100G
FabrikantMBO
€ 24,16
1 Reel of 100 Gram(s)
Reel(s)
RT15 1mm - Wire 217°C 3% 96.5% Rosin 100g 1.5% 0.5%