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| Contact us |
 Tel：0755-28131066
28131067 128131068 |
Fax：0755-29809588 |
Q Q：491580109 |
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| Lead-free Solder Wire |
To match the requirement of Lead free electronic assembly.Several Lead-free solder wires,e.g: Sn-Cu,Sn-Ag,Sn-Bi,Sn-Sb,Sn-Ag-Cu,have been developed in our company,The Pb content in all of the products,is strictly controlled to be below 500ppm,Furthermore,modified flux is available to provide enough activity under higher soldering temperature,It will be helpful for you to smoothly transfer to Lead-free processing。 |
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Shape &tolerance |
Wire |
| Appearance |
Lucent, no dirt on surface |
| Weight |
10KG/box or so |
Packing explanation |
Can make to order according to customer request（700-1000G Packaging） |
| Features |
Made of pure tin and pure copper from Yunnan Tin Industry Co., Ltd.,
advanced processing with high purity |
| Purpose |
Leadless soldering in high temperature for electronics industry |
| Physical properties： |
| （ 1 ）Liquid temperature：about 227℃ |
| （ 2 ）Specific gravity：about 7.4 |
| Alloy composition： |
Tin
（Sn） |
Cuprum
（Cu） |
Plumbum
（Pb ） |
Stibium
（Sb ） |
Bismuth
（Bi ） |
Zincum
（Zn ） |
Ferrum
（Fe ） |
Aluminum
（Al ） |
Arsenic
（As ）
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Cadmium
（Cd ） |
| 99.3 |
0.7±0.2 |
<0.1 |
<0.02 |
<0.01 |
<0.02 |
<0.02 |
<0.02 |
<0.03 |
<0.02 |
| Physical properties： |
Spec.（colophony content） |
Melting point |
Specific gravity (g/cm2) |
1.1% |
227 ℃ |
7.38 |
2.2% |
227 ℃ |
7.34 |
3.3% |
227 ℃ |
7.40 |
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Classification and Characteristics of Leadless Soldering Alloy |
Alloy Series |
Composition（wt%） |
Melting Temperature（℃）
Solidus/Liquidus |
Remarks |
Sn and other Metals |
Sn 9.0Zn |
198 |
Suitable for soldering in inactive atmosphere |
Sn 0.75Cu |
277 |
Suitable for mobile soldering and manual soldering |
Sn 0.7Cu 0.3Sb |
277-229 |
Suitable for mobile soldering,manual soldering,and dip soldering |
Sn 5.0Sb |
240-243 |
Suitable for mobile soldering and manual soldering |
Sn 1.0Ag 1.0Sb |
228-234 |
Suitable for dip soldering |
Sn An Cu |
Sn 3.5Ag 0.75Cu |
217-219 |
Suitable for reflux soldering,mobile soldering,and manual soldering |
Sn 3.0Ag 0.5Cu |
217-220 |
Suitable for reflux soldering,mobile soldering,and manual soldering |
Sn 2.0Ag 0.5Cu |
217-223 |
Suitable for reflux soldering,mobile soldering,and manual soldering |
Sn 0.3Ag 0.7Cu |
217-227 |
Suitable for reflux soldering,mobile soldering,and manual soldering |
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