Tin lead series powder of type3 and type 4 (20~45micron)Sn63Pb37 and Sn62Pb36Ag2,Sn62.6Pb37Ag0.4 Sn-Pb and Sn-Pb-Ag series solder powder,comon size of powder 20~45micron.
1.The welding powder is ball shaped,the dark part is a tin rich area and the light part is a lead rich area.The pictures show the good sphericity, homogenous alloy composition and smooth surface of the product.2.Particle size classification and final typing technology enables stable particle size of the product provided to customers.
3. Low oxygen content
Oxygen content is strictly controlled during production and packing of allalloy welding powder.Leco oxygen determinator is adopted to determine the surface oxygen content and chemical assay is adopted to determine the total oxygen content.
4.Advanced powder classification and collection technology enables Type 2-Type 3 alloy welding powder free of powder smaller than 20um.
1.Common alloy composition and characteristics: (appendix)
| SN | Alloy Brand | Solidus Temperature | LiquidusTemperature | Density g/cm3 |
| 1 | Sn63Pb37 | 183 | 183 | 8.4 |
| 2 | Sn60Pb40 | 193 | 190 | 8.8 |
| 3 | Sn62.6pb37Ag0.4 | 183 | 216 | 9.3 |
| 4 | Sn62pb36Ag2 | 183 | 202 | 9.13 |
2.Sn-Pb,Sn-Pb-Ag series powder Product specifications:
B can provide conforms to the J – STD – 005 standard specifications welding powder products; Typical particle size distribution table as follows, if you have any special request, please contact with us (another schedule).
| Specification | Particle size classification | Particle size | Reference Standard | ||
| 2.5# | -230/+500 -230/+500mesh |
>63μm | 25-63μm | <25μm | J-STD-005 |
| max1wt% | min85wt% | max5.0wt% | |||
| 2.3# | -230/+400 -230/+400mesh |
>63μm | 38-63μm | <38μm | |
| max1wt% | min85wt% | max5.0wt% | |||
| 3# | -325/+500 -325/+500mesh |
>45μm | 25-45μm | <25μm | |
| max1wt% | min85wt% | max10.0wt% | |||
| 4# | -400/+500 -400/+500mesh |
>38μm | 20-38μm | <20μm | |
| max1wt% | min85wt% | max10.0wt% | |||
3.Sn-Pb,Sn-Pb-Ag series powder oxygen content: (appendix)
| specification | particle size | oxygen content(ppm) |
| 2.5# | 25-63μm | <80 |
| 2.3# | 38-63μm | <70 |
| 3# | 25-45μm | <90 |
| 4# | 20-38μm | <120 |
| 5# | 15-25μm | <180 |
| 6#、7# | 5-15μm | <220 |
Usage of Sn63Pb37 ,Sn62Pb36Ag2 and Sn62.6Pb37Ag0.4 tin lead,tin lead silver series solder powder
spherical alloy solder powder, under accurate monitoring by the computer,are carrying out the high quality standard of the alloy solder powder, can satisfy with the high quality demand of the solder paste . We can also according to customer requirements produce all kinds of special performance products.
Packaging:All powder is packaged in 5kg metallized mylar bags under inert gas. FIVE bags are packed in sealed polyethylene containers to prevent damage. Alternative packaging is available to satisfy customer requirements.
20kg/case20-25kg
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