ALUMINUM ALLOYS / ZINC- ALUMINIUM ALLOYS
ALUMINUM ALLOYS / ZINC- ALUMINIUM ALLOYS
Alloys containing aluminum and silicon are most commonly used for brazing aluminum and its alloys. Such bonds guarantee good strength parameters and are highly resistant to corrosion. Fluxes with appropriate activity should be used during brazing due to the emergence of a tight layer of oxides on the surface of aluminum. The choice of flux should be determined by the chemical composition of the brazed metals and the type of alloys used.
| Product | Composition % | Melting temp. range | Working temperature | Standard PN-EN ISO 17672 (PN-EN 1044) | Standard AWS 5.8 | ||
|---|---|---|---|---|---|---|---|
| Al | Zn | Si | °C | °C | |||
 ZnAl2 | 2 | 98 | - | 382-385 | 385 | - | - |
| ZnAl4 | 4 | 96 | - | 382-418 | 410 | - | - |
| ZnAl4 FC | 4 | 96 | - | 382-418 | 410 | - | - |
| ZnAl22 | 22 | 78 | - | 426-485 | 485 | - | - |
| AlSi12 | 88 | - | 12 | 575-585 | 610 | Al 112 (Al 104) | BAlSi-4 |
| AlSi12 z top. | 88 | - | 12 | 577-582 | 610 | BAlSi-4 | |
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