Solders

What is solder?
Solder is a metal alloy with a low melting temperature point. It is used to permanently join two metals with a higher melting point. Soldering is a process commonly used in the electronics industry for PCBs, jewellery manufacturing and pipework in plumbing.
Solder is to be used alongside a soldering iron for hand soldering.

What forms of solder are there?
• The majority of solder comes in wire form. There are a range of wire diameters available to suit various applications and joints.
• Solder granules are ideal for soldering machines and tinning crucibles. They are 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.

What metal is used in solder?

Solder is made using a mixture of metals. A popular combination is 60/40 solder; 60% tin and 40% lead. There are other %s of tin and lead available too. Silver is also used in solder for higher temperatures to create stronger joints, also known as silver soldering, hard soldering or silver brazing.

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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. 619-5615
Mfr. Part No.291340
BrandMulticore
£16.75
1 Reel of 250 Gram(s)
Reel(s)
362 1.2mm 40% Wire 183 → 188°C - 60% Rosin Based 250g 3% -
RS Stock No. 555-235
Mfr. Part No.288322
BrandMulticore
£32.55
1 Reel of 500 Gram(s)
Reel(s)
362 0.7mm 40% Wire 183 → 188°C - 60% Rosin Based 500g 3% -
RS Stock No. 756-8884
BrandRS Pro
£26.04
Each
Units
SAC305 0.71mm 0% Wire +217 → +221°C 3.0% 96.5% Rosin Based 250g 3.3 % 0.5%
RS Stock No. 554-923
Mfr. Part No.288380
BrandMulticore
£38.42
1 Reel of 500 Gram(s)
Reel(s)
362 1.2mm 40% Wire 183 → 188°C - 60% Rosin Based 500g 3% -
RS Stock No. 436-4926
Mfr. Part No.442578
BrandMulticore
£33.30
Each
Units
- 0.5mm - Wire 217°C 3.8% 95.5% Colophony (Rosin) Free 250g 1.5% 0.7%
RS Stock No. 756-8904
BrandRS Pro
£10.92
Each
Units
60/40 NC600 0.71mm 40.0% Wire +183 → +188°C - 60.0% Rosin Based 250g 2.2% -
RS Stock No. 436-4881
Mfr. Part No.442570
BrandMulticore
£32.67
Each
Units
362 0.5mm 40% Wire 183 → 188°C - 60% Rosin Based 250g 3% -
RS Stock No. 556-503
Mfr. Part No.290715
BrandMulticore
£28.80
1 Reel of 500 Gram(s)
Reel(s)
362 1.2mm 93.5% Wire 296 → 301°C 1.5% 5% Rosin Based 500g 3% -
RS Stock No. 273-255
Mfr. Part No.YC00220
£2.50
Each
Units
YC00220 0.80mm - Wire +227°C - 99.25% Rosin Based 13g 2.5% 0.75%
RS Stock No. 625-8233
Mfr. Part No.342806
BrandMulticore
£68.22
1 Reel of 500
Reel(s)
- 0.7mm - Wire 217°C 3.8% 95.5% Colophony (Rosin) Free 500g 1.5% 0.7%
RS Stock No. 185-0042
Mfr. Part No.291275
BrandMulticore
£25.21
1 Reel of 250 Gram(s)
Reel(s)
362 1.2mm - Wire 227°C - 99.3% Rosin Based 250g 3% 0.7%
RS Stock No. 436-4869
Mfr. Part No.291708
BrandMulticore
£42.37
Each
Units
362 0.56mm 36% Wire 179°C 2% 62% Rosin Based 250g 3% -
RS Stock No. 185-0070
Mfr. Part No.289807
BrandMulticore
£58.11
1 Reel of 500 Gram(s)
Reel(s)
362 0.7mm - Wire 227°C - 99.3% Rosin Based 500g 3% 0.7%
RS Stock No. 295-4820
Mfr. Part No.288155
BrandMulticore
£39.67
Each
Units
- 0.7mm 40% Wire 183 → 188°C - 60% Colophony (Rosin) Free 500g 3% -
RS Stock No. 512-5801
Mfr. Part No.761345
BrandMulticore
£4.772
Each (In a Pack of 5)
Units
- 7mm - Stick 227°C - 99.3% - 80g 0% 0.7%
RS Stock No. 436-4831
Mfr. Part No.288498
BrandMulticore
£23.00
Each
Units
C400 0.46mm 40% Wire 183 → 188°C - 60% Rosin Based 250g 2.2% -
RS Stock No. 756-8881
BrandRS Pro
£11.02
Each
Units
60/40 NC600 1.27mm 40.0% Wire +183 → +188°C - 60.0% Rosin Based 250g 2.2% -
RS Stock No. 800-7661
BrandRS Pro
£9.52
Each
Units
- 0.71mm 40% Wire +183°C - 60% Colophony Free- ORL0 250g 2 → 4% -
RS Stock No. 229-4308
Mfr. Part No.288716
BrandMulticore
£20.19
1 Reel of 1
Reel(s)
C511 0.7mm 40% Wire 183 → 188°C - 60% Rosin Based 250g 3% -
RS Stock No. 625-8132
Mfr. Part No.289703
BrandMulticore
£76.68
1 Reel of 500
Reel(s)
- 1mm - Wire 217°C 3.8% 95.5% Colophony (Rosin) Free 500g 1.5% 0.7%
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