SILVER BRAZING ALLOYS – SPECIAL APPLICATIONS
The following are brazing alloys that, thanks to the addition of specific elements, or to their particular composition, have improved characteristics that make them suitable for specific applications or to operate in difficult conditions.
In particular, the addition of Nickel helps in joining difficult-to-braze materials (such as stainless steel, tool steel, tungsten carbide, nickel and nickel alloys, etc.) and improves corrosion resistance.
Manganese helps in brazing carbides.
Alloys without Copper are ammonia resistant.
Alloys without Zinc are suitable for brazing in oven and may be used to join stainless steels in wet conditions to avoid interfacial corrosion problems.
Alloys with Indium are suitable to join pieces that will undergo TiN coating.
| Code | Composition % | Melting Range SOL-LIQ | Density | Tensile strength | Standard | |||||||||
| Ag | Cu | Zn | Ni | Mn | Sn | In | °C | g/cm3 | kg/mm2 | ISO 17672 | EN 1044 | AWS A5.8 | ||
Alloys with Nickel |
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| Ag27MnNi | 27 | 38 | 20 | 5,5 | 9,5 | – | – | 680-830 | 8,7 | – | Ag 427 | AG 503 | — |  |
| Ag38MnNi | 38 | 26 | 24 | 4,5 | 7,5 | – | – | 650-690 | 8,9 | – | — | — | — | |
| Ag40Ni | 40 | 30 | 28 | 2 | – | – | – | 670-780 | 8,9 | – | Ag 440 | — | BAg-4 | |
| Ag49MnNi | 49 | 16 | 23 | 4,5 | 7,5 | – | – | 680-705 | 8,9 | 55 | Ag 449 | AG 502 | BAg-22 | |
| Ag49MnNi/1 | 49 | 27 | 21 | 0,5 | 2,5 | – | – | 670-690 | 8,9 | – | — | — | — | |
| Ag50Ni | 50 | 20 | 28 | 2 | – | – | – | 660-705 | 9,0 | 45 | Ag 450 | — | BAg-24 | |
| Ag54Ni | 54 | 40 | 5 | 1 | – | – | – | 720-855 | 9,6 | – | Ag 454 | — | BAg-13 | |
Alloys without Copper (Ammonia resistant) |
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| Ag72Zn | 72 | – | 28 | – | – | – | – | 710-730 | 8,4 | 44 | — | — | — | |
| Ag85Mn | 85 | – | – | – | 15 | – | – | 960-970 | 10 | – | Ag 485 | AG 501 | BAg-23 | |
Alloys without Zinc (for brazing in oven) |
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| Ag40Ni/1 | 40 | 58 | – | 2 | – | – | – | 780-900 | 9,6 | 35 | — | — | — | |
| Ag60Sn/1 | 60 | 30 | – | – | – | 10 | – | 600-730 | 9,8 | – | Ag 160 | AG 402 | BAg-18 | |
| Ag72 | 72 | 28 | – | – | – | – | – | 780-780 | 10 | 35 | Ag 272 | AG 401 | BAg-8 | |
| Ag72Cu V1 | 72 | 28 | – | – | – | – | – | 780 | 10 | 35 | Ag272 V1 | AG 401 V1 | BVAg-8 Grade 1 | |
| Ag72Cu V2 | 72 | 28 | – | – | – | – | – | 780 | 10 | 35 | Ag272 V2 | AG 401 V2 | BVAg-8 Grade 2 | |
| Ag99,99 | 99,99 | – | – | – | – | – | – | 960-960 | 10,5 | – | — | — | — | |
Alloys with Indium (for TiN coating) |
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| Ag56InNi | 56 | 27 | – | 2,5 | – | – | 14,5 | 600-710 | 9,6 | – | — | AG 403 | — | |
| Ag64MnNiln | 64 | 26 | – | 2 | 2 | – | 6 | 730-780 | 9,6 | – | — | — | — | |
| Make-up | ||||
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Rods | Ø; | 0,5 ÷ 4 mm |
Length: 500 / 1.000 mm |
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Coated rods | Ø: | 1,5 – 2 – 2,5 – 3 mm | Length: 500 mm / Different kinds of coating available in various colours |
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Wires | Ø: | 0,25 ÷ 3 mm |
Coils and Spools |
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Strips | Thickness: | 0,1 ÷ 1 mm |
Width: 1,3 → 80 mm |
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Powder and Paste | |||
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Rings | |||
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Preforms from Wire and from Strip | |||