Friday, 2 January 2015

Solder Alloys, 2

This is an updated version of a table on various possibly useful solders.
Solder Alloy  Composition  Solidus  Liquidus Uses
25/75 Sn/Pb 183C 266C general plumbing, car radiators
30/70 Sn/Pb 183C 256C general plumbing, car radiators
30/50/20 Sn/Pb/Zn 177C 288C economical solder for aluminium, Zinc and Cast iron
40/60 Sn/Pb 183C 238C brass, plumbing, car radiators
50/50 Sn/Pb 183C 216C general purpose, plumbing, not for gold, silver
50/48.5/1.5 Sn/Pb/Cu 183C 215C reduces copper erosion on irons
60/40 Sn/Pb 183C 190C electronics, good wetting, duller surface than 63/37
63/37 Sn/Pb 183C 183C eutetic, eletrionics, stainless steel, bright joints
62/37/1 Sn/Pb/Cu 183C 183C similar to 63/37 and reduces erosion on irons
90/10 Sn/Pb 183C 213C
95/5 Sn/Pb 238C 238C plumbing and heating
96.5/3/0.5 Sn/Ag/Cu 217C 220C recommended lead free for electronics 
95.8/3.5/0.7 Sn/Ag/Cu 217C 218C wave and dip soldering
95.6/3.5/0.9 Sn/Ag/Cu 217C 217C eutectic
95.5/3.8/0.7 Sn/Ag/Cu 217C 217C European preference for wave and dip soldering
96.5/3.5 Sn/Ag 221C 221C wide use, poor wetting, strong lead free joints, stainless steel
95/5 Sn/Ag 221C 254C strong, ductile joints on copper, stainless steel
94/6 Sn/Ag 221C 279C strong, ductile joints on copper, stainless steel
93/7 Sn/Ag 221C 302C strong, ductile joints on copper, stainless steel



Ag = Silver
Cd = Cadmium
Cu =Copper
PB = Lead
Sn = Tin
Sb = Antimony