Composition Selection Of Solder Alloys
4-6 Lead-free Solder Bar Alloy Composition Selection Guide
4-6-1 Sn-Cu Alloys
|
Series
WH-10 |
Alloy Composition
S-Sn99.90 |
Melting Point(℃)
232 |
Proposed Temperature
240-260 |
Recommendation
|
| WH-11 |
S-Sn98Cu2 |
-- |
-- |
|
| WH-22 |
S-Sn99.7Cu0.3 |
227 |
240-260 |
|
| WH-23 |
S-Sn99.3Cu0.7 |
227 |
240-260 |
Widely Used,Economical |
| WH-24 |
S-Sn99Cu1 |
227-240 |
240-260 |
|
| WH-25 |
S-Sn97Cu3 |
227-275 |
240-260 |
|
| WH-323 |
S-Sn99Cu0.6Ni0.4 |
226 |
240-260 |
|
4-6-2 Sn-Ag Alloys
|
Series
WH-10 |
Alloy Composition
S-Sn99.90 |
Melting Point(℃)
232 |
Proposed Temperature
240-260 |
Recommendation
|
| WH-26 |
S-Sn97Ag3 |
221-230 |
240-260 |
|
| WH-27 |
S-Sn96.5Ag3.5 |
221 |
240-260 |
|
| WH-28 |
S-Sn96Ag4 |
221-225 |
240-260 |
|
| WH-331 |
S-Sn77In20Ag3 |
178-189 |
240-260 |
|
| WH-372 |
S-Sn99Ag1 |
— |
— |
|
4-6-3 Sn-Ag-Cu Alloys
|
Series
WH-10 |
Alloy Compostion
S-Sn99.90 |
Melting Point(℃)
232 |
Proposed Temperature
240-260 |
Recommendation
|
| WH-316 |
S-Sn97Ag1Cu2 |
— |
— |
|
| WH-326 |
S-Sn96.5Ag3Cu0.5Ce |
217-219 |
240-260 |
Widely use for high-end electronic products |
| WH-327 |
S-Sn95.5Ag3.5Cu1 |
218 |
240-260 |
|
| WH-328 |
S-Sn93Ag5Cu2 |
217 |
240-260 |
|
| WH-329 |
S-Sn95Ag4Cu1 |
206-219 |
240-260 |
|
| WH-373 |
S-Sn99Ag0.3Cu0.7 |
— |
— |
For general electronic products |
| WH-404 |
S-Sn92Ag5Cu2Sb1 |
— |
— |
Military used |
| WH-402 |
S-Sn96.5Ag2Cu1Sb0.5 |
216-222 |
240-260 |
|
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