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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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庫存編號 756-8884
BrandRS PRO
HK$368.07
單位
SAC305 0.71mm - Wire 217°C 3% 96.5% Rosin Based 250g 2.2% 0.5%
RS庫存編號 436-4926
製造零件編號442578
BrandMulticore
HK$681.79
單位
105 0.5mm 0% Wire +217°C 3.8% 95.5% Halogen Free 250g 1.5% 0.7%
RS庫存編號 818-3194
BrandRS PRO
HK$50.17
單位
- - - - - - - - - - -
RS庫存編號 556-503
製造零件編號290715
BrandMulticore
HK$552.98
毎卷 (500 克)
Reel(s)
362 1.2mm 93.5% Wire 296-301°C 1.5% 5% Water Wash 500g 3% -
RS庫存編號 555-235
製造零件編號288322
BrandMulticore
HK$490.14
毎卷 (500 克)
Reel(s)
362 0.7mm 40% Wire 183-188°C - 60% Halogen Free 500g 3% -
RS庫存編號 185-0070
製造零件編號289807
BrandMulticore
HK$947.30
毎卷 (500 克)
Reel(s)
362 0.7mm - Wire +227°C - 99.3% Activated Rosin 500g 3% 0.7%
RS庫存編號 547-372
製造零件編號SN62 PB AG2 7/10 CR2 - 500G
BrandMBO
HK$576.25
毎卷 (500 克)
Reel(s)
SN62 PB AG2 0.7mm 36% Wire 179°C 2% 62% Rosin 500g 2.2% -
RS庫存編號 185-0042
製造零件編號291275
BrandMulticore
HK$504.52
毎卷 (250 克)
Reel(s)
362 1.2mm - Wire +227°C - 99.3% Water Wash 250g 3% 0.7%
RS庫存編號 557-118
製造零件編號287904
BrandMulticore
HK$367.66
毎卷 (500 克)
Reel(s)
362 1.6mm 60% Wire 183-235°C - 40% Activated Rosin Free 500g 3% -
RS庫存編號 557-124
製造零件編號287908
BrandMulticore
HK$316.61
毎卷 (500 克)
Reel(s)
362 2mm 60% Wire 183-235°C - 40% Activated Rosin 500g 3% -
RS庫存編號 547-287
製造零件編號SN62 PB AG2 5/10 CR2 - 500G
BrandMBO
HK$437.13
毎卷 (500 克)
Reel(s)
SN62 PB AG2 0.5mm 36% Wire 179°C 2% 62% Rosin 500g 2.2% -
RS庫存編號 551-671
製造零件編號291726
BrandMulticore
HK$1,002.42
毎卷 (500 克)
Reel(s)
362 0.7mm 36% Wire 179°C 2% 62% Activated Rosin 500g 3% -
RS庫存編號 788-3708
製造零件編號T0051388299
BrandWeller
HK$361.76
毎卷:1 個
Reel(s)
WSW SAC M1 0.5mm - Wire 217°C 3% 96.5% Rosin 100g 3.5% 0.5%
RS庫存編號 436-4881
製造零件編號442570
BrandMulticore
HK$508.69
單位
362 0.5mm 40% Wire 183-188°C - 60% Activated Rosin 250g 3% -
RS庫存編號 756-8904
BrandRS PRO
HK$150.90
單位
NC600 0.71mm 40% Wire 183°C - 60% Rosin Based 250g 2.2% -
RS庫存編號 619-5615
製造零件編號291340
BrandMulticore
HK$354.63
毎卷 (250 克)
Reel(s)
362 1.2mm 40% Wire 183°C - 60% Rosin Based 250g 3% -
RS庫存編號 436-4910
製造零件編號289155
BrandMulticore
HK$536.32
單位
X39 0.7mm 40% Wire 183-188°C - 60% Activated Rosin Free 500g 1% -
RS庫存編號 551-665
製造零件編號291749
BrandMulticore
HK$553.01
毎卷 (500 克)
Reel(s)
362 1.2mm 36% Wire 179°C 2% 62% Activated Rosin 500g 3% -
RS庫存編號 273-255
製造零件編號YC00220
HK$34.22
單位
YC00220 0.8mm 0% Wire 227°C - 99.25% Rosin Based 13g 2.5% 0.75%
RS庫存編號 625-8132
製造零件編號289703
BrandMulticore
HK$1,160.95
毎卷:500 個
Reel(s)
105 1mm - Wire +217°C 3.8% 95.5% Activated Rosin 500g 1.5% 0.7%