Gold Based Brazing Alloys

Product Uses and Applications

High purity gold containing brazing alloys find use in a variety of applications including electronic components, imaging equipment, aerospace, oil and gas and chemical. The alloys in this range are normally selected because of their ability to withstand chemical attack and retain strength at elevated temperature or because they can be produced in ultra pure V1 grade sometimes called ‘vacuum tube grade’.

Key ProductsAuCuNiAgPdMnMelting Range °CAMSAWS A5.8EN1044:1999ISO 17672:2016Product Info
Meta-Braze Au 8008020----890-BAu-2-Au 800View product info

Meta-Braze Au 800

Meta-Braze Au 800 is a high purity gold-copper alloy with a eutectic composition. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper.

Meta-Braze Au 800 shows good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten and due to its good ductility is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
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Meta-Braze Au 08181.516.52---910-925----View product info

Meta-Braze Au 081

Meta-Braze Au 081 is a high purity gold-copper-nickel vacuum brazing alloy. The addition of nickel to the alloy means that it is less free flowing than gold-copper alloys but shows excellent wetting on nickel, molybdenum, stainless steel, and Kovar (Ni-Co-Fe alloy). It is suitable for brazing ceramic components that have been metallized with moly-manganese.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
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Meta-Braze Au 62562.537.5----930-940--AU102Au 625 V1View product info

Meta-Braze Au 625

Meta-Braze Au 625 is a high purity gold-copper alloy with a short melting range. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper. Meta-Braze Au 625 has good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten. Due to its good ductility it is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
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Meta-Braze Au 82782-18---9504787BAu-4AU105Au 827 V1View product info

Meta-Braze Au 827

Meta-Braze Au 827 is a widely specified high purity gold-nickel alloy with a eutectic composition. It is extensively used in aerospace components and thermionic valve / vacuum tube devices as well as in other specialised applications. Meta-Braze Au 827 has excellent high temperature strength up to 500˚C and oxidation resistance up to 800°C making it suitable for aero-engine components. Meta-Braze Au 827 is suitable for brazing components that operate at elevated temperatures in ultra high vacuum, such as vacuum tube devices.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 5035050----955-970---Au 503View product info

Meta-Braze Au 503

Meta-Braze Au 503 is a high purity gold-copper alloy with a short melting range. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper. Meta-Braze Au 503 has good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten. Due to its good ductility it is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings

Downloads

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Meta-Braze Au 37537.562.5----980-998-BAu-1AU103Au 375 V1View product info

Meta-Braze Au 375

Meta-Braze Au 375 is a high purity gold-copper alloy with a eutectic composition. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper. Meta-Braze Au 375 shows good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten. Due to its good ductility it is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 3543565----990-1010---Au 354View product info

Meta-Braze Au 354

Meta-Braze Au 354 is a high purity gold-copper alloy with a eutectic composition. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper. Meta-Braze Au 354 shows good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten. Due to its good ductility it is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 025253710-1513970-1013----View product info

Meta-Braze Au 025

Meta-Braze Au 025 is a specialised gold-copper-palladium-nickel-manganese alloy. It melts between 970 and 1013°C. This alloy has found use for brazing superalloys and for specialised tungsten carbide tooling applications where it exhibits high strength joints and excellent wetting on difficult to wet materials.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 2953070----995-1020--AU104Au 295 V1View product info

Meta-Braze Au 295

Meta-Braze Au 295 is a high purity gold-copper alloy with a eutectic composition. Gold-copper braze alloys have good resistance to oxidation at elevated temperatures and excellent corrosion resistance in many chemical environments. They are suitable for use in the fabrication of vacuum tube / thermionic valve devices due to their high purity and the low vapour pressures of both gold and copper. Meta-Braze Au 295 shows good wetting on alloys of copper, nickel, iron, cobalt, molybdenum, niobium and tungsten. Due to its good ductility it is suitable for use on metallised ceramics.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 35135623---975-1030-BAu-3-Au 351View product info

Meta-Braze Au 351

Meta-Braze Au 351 is a high purity gold-copper-nickel vacuum brazing alloy. The addition of nickel to the alloy means that it is less free flowing than gold-copper alloys but shows excellent wetting on nickel, molybdenum, stainless steel, and Kovar (a Ni-Co-Fe alloy). It is suitable for brazing ceramic components that have been metallized with moly-manganese.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 07070--30--1030-1040----View product info

Meta-Braze Au 070

Meta-Braze Au 070 is a specialised gold-silver brazing alloy. It has a short melting range melting between 1030 and 1040°C.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 70070-22-8-1005-10454786BAu-6-Au 700View product info

Meta-Braze Au 700

Meta-Braze Au 700 is a widely specified high purity gold-nickel-palladium alloy. It is used in aerospace components as well as in other specialised applications. Meta-Braze Au 700 has excellent high temperature strength and oxidation resistance making it suitable for aero-engine components. Meta-Braze Au 700 is suitable for brazing components that operate at elevated temperatures in ultra high vacuum, such as vacuum tube devices.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
×
Meta-Braze Au 50750-25-25-1102-11214784--Au 507View product info

Meta-Braze Au 507

Meta-Braze Au 507 is a high purity gold-nickel-palladium alloy. It is used in aerospace components as well as in other specialised applications. Meta-Braze Au 507 has excellent high temperature strength and oxidation resistance making it suitable for aero-engine components. Meta-Braze Au 507 is suitable for brazing components that operate at elevated temperatures in ultra high vacuum, such as vacuum tube devices.

Product Forms

  • wire
  • powder
  • braze-paste
  • foil
  • preform
  • rings
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