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 is 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 percentages 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. 756-8904
BrandRS PRO
R 310.27
Each
units
60/40 NC600 0.71mm 40% Wire 183°C - 60% Rosin Based 250g 2.2% -
RS stock no. 555-235
Mfr. Part No.288322
BrandMulticore
R 847.63
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
R 675.84
Each
units
SAC305 0.71mm - Wire 217°C 3% 96.5% Rosin Based 250g 3.3% 0.5%
RS stock no. 436-4831
Mfr. Part No.288498
BrandMulticore
R 434.86
Each
units
C400 0.46mm 40% Wire 183-188°C - 60% Rosin Based 250g 2.2% -
RS stock no. 436-4869
Mfr. Part No.291708
BrandMulticore
R 916.92
Each
units
362 0.56mm 36% Wire 179°C 2% 62% Activated Rosin 250g 3% -
RS stock no. 554-923
Mfr. Part No.288380
BrandMulticore
R 812.44
1 Reel of 500 Gram(s)
Reel(s)
362 1.2mm 40% Wire 183-188°C - 60% Rosin Based 500g 3% -
RS stock no. 273-255
Mfr. Part No.YC00220
R 62.01
Each
units
YC00220 0.8mm 0% Wire 227°C - 99.25% Rosin Based 13g 2.5% 0.75%
RS stock no. 818-3204
BrandRS PRO
R 74.43
Each
units
- 0.8mm - - 227°C 3% 96.5% - 100g 3.3% 0.5%
RS stock no. 436-4881
Mfr. Part No.442570
BrandMulticore
R 690.72
Each
units
362 0.5mm 40% Wire 183-188°C - 60% Activated Rosin 250g 3% -
RS stock no. 800-7652
BrandRS PRO
R 230.11
Each
units
- 1.27mm 40% Wire 183°C - 60% Colophony Free- ORL0 250g 2 → 4% -
RS stock no. 788-3723
Mfr. Part No.T0051388699
BrandWeller
R 1,107.00
1 Reel of 1
Reel(s)
WSW SAC M1 1mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%
RS stock no. 295-4842
Mfr. Part No.1875181
BrandMulticore
R 830.09
Each
units
105 1.2mm 40% Wire 183-188°C - 60% Colophony (Rosin) Free 500g 3% -
RS stock no. 551-671
Mfr. Part No.291726
BrandMulticore
R 1,530.12
1 Reel of 500 Gram(s)
Reel(s)
362 0.7mm 36% Wire 179°C 2% 62% Activated Rosin 500g 3% -
RS stock no. 229-4279
Mfr. Part No.291319
BrandMulticore
R 829.62
1 Reel of 1
Reel(s)
C400 0.7mm 40% Wire 183-188°C - 60% Rosin Based 500g 2.2% -
RS stock no. 229-4308
Mfr. Part No.288716
BrandMulticore
R 445.99
1 Reel of 1
Reel(s)
C511 0.7mm 40% Wire 183-188°C - 60% Water Wash 250g 3% -
RS stock no. 185-0042
Mfr. Part No.291275
BrandMulticore
R 565.93
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. 185-0109
Mfr. Part No.291286
BrandMulticore
R 519.00
Each
units
Hydro-x 0.7mm 40% Wire 183-188°C - 60% Water Wash 250g 2% -
RS stock no. 555-099
Mfr. Part No.291345
BrandMulticore
R 1,158.43
1 Reel of 500 Gram(s)
Reel(s)
Alusol 1.6mm 80% Wire 178-279°C 2% 18% Water Wash 500g 2% -
RS stock no. 556-503
Mfr. Part No.290715
BrandMulticore
R 841.04
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. 788-3717
Mfr. Part No.T0051388399
BrandWeller
R 624.73
1 Reel of 1
Reel(s)
WSW SAC LO 0.3mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%