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Alloy Properties | Kester

The alloy temperature chart lists the alloys that are available from Kester. This chart includes the alloy’s melting temperature and lists the available forms for each alloy. Download Chart

Kester Solder Alloys
ALLOY Melting Range °C Melting Range °F SOLDER PASTE WIRE PREFORMS BAR
HIGH-TEMP
Sn5Pb93.5Ag1.5 296-301 565-574 X X X
Sn10Pb88Ag2 268-299 514-570 X X X X
Sn5Pb92.5Ag2.5 287-347 549-565 X X
MID-RANGE
Sn40Pb60 183-238 361-460 X X X
Sn50Pb50 183-216 361-420 X X X
Sn60Pb40 183-190 361-374 X X X
Sn63Pb37 183 361 X X X X
Sn62Pb36Ag2 179 354 X X X X
LOW-TEMP
Sn43Pb43Bi14 144-163 291-324 X X
LEAD-FREE
Sn100 232 450 X X X
Sn99.3Cu0.7 227 441 X X X
Sn96.5Ag3.5 221 430 X X X
Sn95.5Ag3.8Cu0.7 217 423 X X X
Sn96.5Ag3Cu0.5 217-218 423-424 X X X X
Sn96.3Ag3.7 221-223 430-444 X X
K100LD 226-230 440 X X X
Sn95Sb5 232-240 450-464 X X X X
SAF-A-LLOY* 220-234 428-454 X X X X

*Sn97Ag0.2Sb0.8Cu2


For Reference Only
ALLOY Melting Range °C Melting Range °F SOLDER PASTE WIRE PREFORMS BAR
Pb100 328 622 X
Sn35Pb65 247 477 X X
Sn95.5Ag4Cu0.5 217-220 423-428 X