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Normally not used for copper or silver-based alloys; flow point close to melting point of silver, and too readily alloys with copper. Low penetration of base metal, suitable for brazing thin parts, e.g. thin-wall tubing or vacuum tubes. Does not produce severe intergranular penetrations characteristic for boron-containing nickel brazing alloys.
Silver brazing may cause defects in certain alloys, e.g. stress-induced inter-granular cracking in copper-nickel. One special silver brazing method is called pinbrazing or pin brazing. It has been developed especially for connecting cables to railway track or for cathodic protection installations. The method uses a silver- and flux-containing ...
CuSil is a tradename for an alloy of 72% silver and 28% copper (± 1%) marketed by Morgan Advanced Materials. It is a eutectic alloy primarily used for vacuum brazing. [1] CuSil should not be confused with the similarly named Cusil-ABA, which has a different composition (Ag – 63.0%, Cu – 35.25%, Ti – 1.75%)
Heusler alloy, a range of ferromagnetic alloys (66% copper, cobalt, iron, manganese, nickel or palladium) High-entropy alloys; Intermetallic compounds; List of brazing alloys; Pot metal; inexpensive casting metal of non-specific composition
Cadmium and zinc are the worst common offenders. Silver, a common component of brazing alloys, can be problematic at higher temperatures and lower pressures. A silver-copper eutectic, named e.g. Cusil, is recommended. A superior alternative is a copper-silver-tin alloy called Cusiltin. Copper-silver-phosphorus alloys, e.g. Sil-Fos, are also ...
Soldering performed using alloys with a melting point above 450 °C (840 °F; 720 K) is called "hard soldering", "silver soldering", or brazing. In specific proportions, some alloys are eutectic — that is, the alloy's melting point is the lowest possible for a mixture of those components, and coincides with the freezing point.