KESTER Flux-core solder
Product Code: Info
Product Description
| Kester standard flux-core sizes |
| For applications where a smaller flux core is preferred to reduce flux smoking and residue other core sizes are available. |
| Standard wire diameters |
| Kester flux-core and solid wire solders are manufactured in many alloys including those conforming to Federal Specification QQ-S-571 and ASTM B32. Wire solders of any diameter from 6.00 to0.25mm are available. The following are the most commonly specified diameters |
| Inch | Commonly specified diameters English wire gauge equivalent | Approximate mm equivalent |
| 0.125 | 11 | 3.17 |
| 0.093 | 13 | 2.36 |
| 0.062 | 16 | 1.57 |
| 0.50 | 18 | 1.26 |
| 0.040 | 19 | 1.02 |
| 0.031 | 21 | 0.78 |
| 0.025 | 23 | 0.63 |
| 0.020 | 25 | 0.50 |
| 0.015 | 28 | 0.40 |
| 0.10 | 31 | 0.25 |
Alloy Properties
ALLOY:TIN-LEAD | MELTING RANGE F/ C | WIRE | BAR | SOLDERPASTE | PREFORMS |
Sn63Pb37 | 361/183 | X | X | X | X |
Sn60Pb40 | 361-374/183-190 | X | X |
| X |
Sn55Pb45 | 361-397/183-203 | X | X |
| X |
Sn50Pb50 | 361-420/183-214 | X | X |
| X |
Sn45Pb55 | 361-440/183-225 | X | X |
| X |
Sn40Pb60 | 361-460/183-238 | X | X |
| X |
Sn35Pb65 | 361-477/183-247 | X | X |
| X |
Sn30Pb70 | 361-496/183-258 | X | X |
| X |
No. 123 | 366-503/186/262 | X | X |
|
|
Sn25Pb75 | 361-514/183-268 | X | X |
| X |
Sn20Pb80 | 361-536/268-302 | X | X |
| X |
Sn10Pb90 | 514-576/268-302 | X | X | X | X |
Sn05Pb95 | 574-597/301-314 |
|
|
| X |
LEAD-FREE | MELTING RANGE F/ C | WIRE | BAR | SOLDERPASTE | PREFORMS |
Sn96.5Ag3.5 | 430/221 | X | X | X | X |
Sn96Ag04 | 430-444/221-229 | X | X |
| X |
Sn95Ag05 | 430-473/221-245 | X | X |
| X |
100%Sn | 450/232 | X | X |
| X |
Sn95Sb05 | 450-464/232-240 | X | X | X | X |
Sn99.3Cu0.7 | 440/227 | X | X |
| X |
Sn96.6Ag3.0Cu0.5 | 422-428/217-220 | X | X | X | X |
Sn95.5Ag3.8Cu0.7 | 422-430/217-221 | X |
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