Solder Materials - Soft Alloys

Solder Joint Design Calculations

Solder filler materials soft alloys engineering and chemical composistion, specification and uses. Braze Filler temperature operation range.

Nominal Composition [%] Melting Ranges [oC] Uses
Sn Pb Sb Ag
70 30 - - 183 - 192 for coating metals
63 37 - - 183 - 183 as lowest melting solder for dip and hand soldering methods
60 40 - - 183 - 190 "fine solder" - for general purposes, but particularly where the temperature requirements are critical
50 50 - - 183 - 216 for general purposes, most popular of all
40 60 - - 183 - 238 wiping solder for joining lead pipes and cable sheaths, for automobile radiator cores and heating units
35 65 - - 183 - 247 general purpose and wiping solder
30 70 - - 183 - 255 for machine and torch soldering
20 - 80 - 183 - 277 for coating and joining metals, for filling dents or seams in automobile bodies
10 90 - - 268 - 299 for coating and joining metals
35 63.2 1.8 - 185 - 243 for wiping and all uses except on galvanized iron
25 73.7 1.3 - 184 - 262 for torch and machine soldering, except on galvanized iron
95 - 5 - 233 - 240 for joints on cooper in electrical, plumbing and heating work
1 97.5 - 1.5 309 - 309 for use on copper, brass and similar metals with torch heating

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