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Composition
Melting point (°C)
Toxic
Eutectic
Comments
Solidus
Liquidus
Sn
50
Zn
49
Cu
1
200
300
[2]
No
No
Galvanite Lead-free galvanizing solder formulation designed specifically for high quality repairs to galvanized steel surfaces. Simple, effective and easy to use, in both manufacturing
and field applications. Metallurgically bonds to the steel, for a seamless protective barrier.
[2]
Sn
95.5
Cu
4
Ag
0.5
226
260
[3]
No
No
KappFree provides good joint strength, vibration resistance, and thermal cycle fatigue resistance in both piping and electrical products as opposed to tin-lead solders. Higher working
temperature. Wets well to brass, copper, and stainless steel. Good electrical conductivity.
[3]
Sn
90
Zn
7
Cu
3
200
222
[4]
No
No
Kapp Eco-Babbitt
[4]
Commonly used in capacitor manufacturing as protective coating to shield against electromotive force (EMF) and electromagnetic interference (EMI) with the
specified performance of the capacitor, to prevent current and charge leakage out of and within the layers of the capacitor, and to prevent the development of electron flows within the
coating material itself, that would diminish capacitor performance, coating, and capacitor life.
[4]
Pb
90
Sn
10
268
275
302
[5]
302
[6]
Pb
No
Sn10, UNS L54520, ASTM10B. Balls for CBGA components, replaced by Sn
95.5
Ag
3.9
Cu
0.6
.
[7]
Low cost and good bonding properties. Rapidly dissolves gold and silver, not
recommended for those.
[8]
Used for fabrication of car radiators and fuel tanks, for coating and bonding of metals for moderate service temperatures. Body solder.
[9]
Has low thermal
EMF, can be used as an alternative to Cd70 where parasitic thermocouple voltage has to be avoided.
[10]
Pb
88
Sn
12
254
296
[9]
Pb
No
Used for fabrication of car radiators and fuel tanks, for coating and bonding of metals for moderate service temperatures. Body solder.
Pb
85
Sn
15
227
288
[9]
Pb
No
Used for coating tubes and sheets and fabrication of car radiators. Body solder.
Pb
80
Sn
20
183
280
[6]
Pb
No
Sn20, UNS L54711. Used for coating radiator tubes for joining fins.
[9]
Pb
80
Sb
15
Sn
5
300
Pb
White Metal Capping. Used for locking mineshaft winding ropes into their tapered end sockets or 'capels'.
[11]
Pb
75
Sn
25
183
266
[5]
Pb
No
Crude solder for construction plumbing works, flame-melted. Used for soldering car engine radiators. Used for machine, dip and hand soldering of plumbing fixtures and fittings.
Superior body solder.
[9]
Pb
70
Sn
30
185
183
255
257
[6]
Pb
No
Sn30, UNS L54280, crude solder for construction plumbing works, flame-melted, good for machine and torch soldering.
[12]
Used for soldering car engine radiators. Used for machine,
dip and hand soldering of plumbing fixtures and fittings. Superior body solder.
[9]
Pb
68
Sn
32
253
Pb
No
"Plumber solder", for construction plumbing works
[13]
Pb
68
Sn
30
Sb
2
185
243
[6]
Pb
No
Pb68
Sn
30
Pb
50
Zn
20
177
288
[14]
Pb
No
Kapp GalvRepair Economical solder for repairing & joining most metals including Aluminum and cast Iron. Have been used for cast Iron and galvanized surface repair.
[14]
Sn
33
Pb
40
Zn
28
230
275
[14]
Pb
No
Economical solder for repairing & joining most metals including Aluminum and cast Iron. Have been used for cast Iron and galvanized surface repair.
[14]
Pb
67
Sn
33
187
230
Pb
No
PM 33, crude solder for construction plumbing works, flame-melted, temperature depends on additives
Pb
65
Sn
35
183
250
[6]
Pb
No
Sn35. Used as a cheaper alternative of Pb
60
Sn
40
for wiping and sweating joints.
[9]
Pb
60
Sn
40
183
238
[5]
247
[6]
Pb
No
Sn40, UNS L54915. For soldering of brass and car radiators.
[12]
For bulk soldering, and where wider melting point range is desired. For joining cables. For wiping and joining lead
pipes. For repairs of radiators and electrical systems.
[9]
Pb
55
Sn
45
183
227
[9]
Pb
No
For soldering radiator cores, roof seams, and for decorative joints.
Sn
50
Pb
50
183
216
[5]
212
[6]
Pb
No
Sn50, UNS L55030. "Ordinary solder", for soldering of brass, electricity meters, gas meters, formerly also tin cans. General purpose, for standard tinning and sheetmetal work.
Becomes brittle below ?150 °C.
[15][13]
Low cost and good bonding properties. Rapidly dissolves gold and silver, not recommended for those.
[8]
For wiping and assembling plumbing
joints for non-potable water.
[9]
Sn
50
Pb
48.5
Cu
1.5
183
215
[16]
Pb
No
Savbit, Savbit 1, Sav1. Minimizes dissolution of copper. Originally designed to reduce erosion of the soldering iron tips. About 100 times slower erosion of copper than ordinary
tin/lead alloys. Suitable for soldering thin copper platings and very thin copper wires.
[17]
Sn
60
Pb
40
183
190
[5]
188
[6]
Pb
Near
Sn60, ASTM60A, ASTM60B. Common in electronics, most popular leaded alloy for dipping. Low cost and good bonding properties. Used in both SMT and through-hole electronics.
Rapidly dissolves gold and silver, not recommended for those.
[8]
Slightly cheaper than Sn
63
Pb
37
, often used instead for cost reasons as the melting point difference is insignificant in
practice. On slow cooling gives slightly duller joints than Sn
63
Pb
37
.
[17]
Sn
60
Pb
38
Cu
2
183
190
[6][18]
Pb
Cu2. Copper content increases hardness of the alloy and inhibits dissolution of soldering iron tips and part leads in molten solder.
Sn
60
Pb
39
Cu
1
Pb
No
Sn
62
Pb
38
183
Pb
Near
"Tinman's solder", used for tinplate fabrication work.
[13]
Sn
63
Pb
37
183
[19]
Pb
Yes
Sn63, ASTM63A, ASTM63B. Common in electronics; exceptional tinning and wetting properties, also good for stainless steel. One of the most common solders. Low cost and good
bonding properties. Used in both SMT and through-hole electronics. Rapidly dissolves gold and silver, not recommended for those.
[8]
Sn
60
Pb
40
is slightly cheaper and is often used
instead for cost reasons, as the melting point difference is insignificant in practice. On slow cooling gives slightly brighter joints than Sn
60
Pb
40
.
[17]
Sn
63
Pb
37
P
0.0015–0.04
183
[20]
Pb
Yes
Sn63PbP. A special alloy for HASL machines. Addition of phosphorus reduces oxidation. Unsuitable for wave soldering as it may form metal foam.
Sn
62
Pb
37
Cu
1
183
[18]
Pb
Yes
Similar to Sn
63
Pb
37
. Copper content increases hardness of the alloy and inhibits dissolution of soldering iron tips and part leads in molten solder.
Sn
70
Pb
30
183
193
[5]
Pb
No
Sn70