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Solder Alloy

SOLDER ALLOY GUIDE
Nominal Composition
Weight %		 Liquidus Solidus Density Nominal Composition
Weight %		 Liquidus Solidus Density
°F °C °F °C lb/c.i. g/cc °F °C °F °C lb/c.i. g/cc
100 Sn 0 Pb 450 232 --- --- .264 7.30 97 Sn 3 Cu 590 310 441 227 .0265 7.33
95 Sn 5 Pb 432 222 361 183 .269 7.43 97 Sn 3 Sb 460 238 449 232 .262 7.25
90 Sn 10 Pb 417 214 361 183 .274 7.57 95 Sn 5 Sb 464 240 450 232 .262 7.28
85 Sn 15 Pb 404 207 361 183 .279 7.71 35 Sn 63 Pb 2 Sb 470 243 365 185 .342 9.47
80 Sn 20 Pb 394 201 361 183 .284 7.86 96.5 Sn 3.5 Ag 430 221 --- --- .266 7.36
75 Sn 25 Pb 383 195 361 183 .290 8.01 95 Sn 5 Ag 465 241 430 221 .267 7.39
70 Sn 30 Pb 376 191 361 183 .295 8.17 62 Sn 36 Pb 2 Ag 355 179 --- --- .304 8.41
65 Sn 35 Pb 367 186 361 183 .301 8.34 5 Sn 92.5 Pb 2.5 Ag 536 280 --- --- .398 11.02
63 Sn 37 Pb 361 183 --- --- .304 8.41 97.5 Pb 2.5 Ag 579 304 --- --- .409 11.32
60 Sn 40 Pb 372 189 361 183 .308 8.51 58 Bi 42 Sn 281 138 --- --- .309 8.55
55 Sn 45 Pb 392 200 361 183 .314 8.69 33 Sn 34 Bi 33 Pb 289 143 203 95 .331 9.16
50 Sn 50 Pb 414 212 361 183 .321 8.88 16 Sn 52 Bi 32 Pb 201 94 --- --- .349 9.66
45 Sn 55 Pb 433 223 361 183 .328 9.08 12.5 Sn 50 Bi 25 Pb 12.5 Cd 163 73 154 68 .344 9.52
40 Sn 60 Pb 455 235 361 183 .335 9.28 12 Sn 49 Bi 18 Pb 21 In 136 58 --- --- .325 9.00
35 Sn 65 Pb 473 245 361 183 .343 9.50 100 In 313 157 --- --- .264 7.30
30 Sn 70 Pb 491 255 361 183 .351 9.72 50 In 50 Sn 257 125 244 118 .264 7.30
25 Sn 75 Pb 513 267 361 183 .360 9.96 37.5 Sn 37.5 Pb 25 In 348 181 274 134 .304 8.41
20 Sn 80 Pb 536 280 361 183 .369 10.21 70 Sn 18 Pb 12 In 324 162 --- --- .281 7.78
15 Sn 85 Pb 554 290 433 223 .377 10.47 75 Pb 25 In 508 264 482 250 .360 9.96
10 Sn 90 Pb 572 300 514 267.5 .388 10.74 92.5 Pb 5 In 2.5 Ag 572 300 --- --- .398 11.02
5 Sn 95 Pb 599 315 572 300 .399 11.03 60 Sn 40 Zn 645 341 390 200 .260 7.20
0 Sn 100 Pb 621 327 --- --- .410 11.34  
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