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Alloy Temperature Chart

The alloy temperature charts provide the melting point of various alloys available from Electroloy. This is to provide a reference for alloy selection for Lead free as well as special application whereby temperature is critical for a successful soldering solution.

Electroloy's alloy code correspond with the alloy composition. Please make reference to the alloy code when making enquires or during ordering process.

Low – Mid-Range Temperature Lead free alloys

Alloy CodeAlloy CompositionSolidus (ºC)Liquidus (ºC)
LF- 301Sn48/In52
118EUTECTIC
LF- 302Sn42/Bi58
138EUTECTIC
LF- 303Sn99.3/Cu0.7
227EUTECTIC
LF- 304Sn98/Ag2.0
221226
LF- 305Sn96.5/Ag3.5
221EUTECTIC
LF- 306*Sn97/Ag2.5/Cu0.5
217221
LF- 307*Sn96.5/Ag3.0/Cu0.5
217219
LF- 308*Sn95.8/Ag3.5/Cu0.7
217EUTECTIC
LF- 309*Sn96/Ag3.5/Cu0.5
217219
LF- 310*Sn96.3/Ag3.0/Cu0.7
217219
LF- 312*Sn95.5/Ag3.8/Cu0.7
217EUTECTIC
LF- 313Sn99.25/Cu0.75
227EUTECTIC
LF- 314Sn97/Ag3
221230
LF- 315*Sn99/Ag0.3/Cu0.7
216228
LF-315X*Sn99/Ag0.3/Cu0.7 + Bi
216228
LF- 315BE
(Top up bar)
Sn99.7/Ag0.3
221230
LF- 316*Sn98.8/Ag0.5/Cu0.7
217226.5
LF-317*Sn97.5/Ag2/Cu0.5
217223
LF-318*Sn98.5/Ag1/Cu0.5
217226
LF-319*Sn95.5/Ag4/Cu0.5
217219
LF-320*Sn99/Ag0.7/Cu0.3
217228
LF- 321*Sn95/Ag3.8/Cu1.2
240250
LF- 322*Sn98.3/Ag1/Cu0.7217227

Low – Mid-Range Temperature Lead free alloys

Alloy CodeAlloy CompositionSolidus (ºC)Liquidus (ºC)
SN100C†Sn99.3/Cu0.6/Ni+Ge227EUTECTIC
SN100Ce†
(Top up bar)
Sn99/Cu/Ni+Ge
( Low copper )
227230
SN100CL†Sn99.3/Cu0.6/Ni+Ge227EUTECTIC
SN100CLe†
(Top up bar)
Sn99/Cu/Ni+Ge
( Low copper )
227230

High Temperature Lead free alloys

Alloy CodeAlloy CompositionSolidus (ºC)Liquidus (ºC)
LF- 331Sn95/Sb5.0235240
LF- 332Sn98/Cu2.0227280
LF- 333Sn97/Cu3.0227300
LF- 334Sn90/Sb10.0245250

* Patent No : US 5527628
†FCT Asia is in license agreement with Nihon Superior for SN100C

For special alloy requirement, please contact us [ Enquiry ]