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2% silver solder
Alias: Material 209(L209)
Conforms to GB BCu91PAg
Equivalent to AWS BCuP-6
Description :
2% silver solder is a copper-phosphorus filler metal containing 2% silver, with moderate melting point, slightly better plasticity, good ability to fill uneven gaps, good mechanical properties of joints, is widely used copper-phosphorus filler metal.
Application:
Widely used in refrigerator, air conditioning and other refrigeration industry and motor, instrument industry brazing copper and copper alloy.
Chemical composition of brazing metal (%)
P | Cu | Ag |
6.8-7.2 | Rem | 1.8-2.2 |
Physical properties (approximate)
fusing temperature(℃) | specific gravity kg/dm3 | specific conductance %IACS | |
solidus curve | liquidus | ||
643 | 788 | 8.2 | 5.5 |
Mechanical properties of brazing metal (reference value)
brazing filler metal | Tensile strength of brazed copper joint MPa | |
| ||
550 6 | 200-250 |
Note:
1. Before brazing, grease, oxide and other dirt must be strictly removed from the brazing site and the surface of the brazing filler metal.
2. No brazing flux is required when brazing copper, but silver flux should be used when brazing copper alloy.
We will use professional export fumigation-free wood, according to the actual number of products customized wooden boxes, wooden trays, etc. It should be noted that different products have different packaging, the specific model and specifications to determine, of course, we are very willing to package according to customer requirements. The transportation mode is mainly sea and land transportation, and the specific need to negotiate with the customer to determine.
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