Precious Metal Brazing Alloys

Meta-Braze™ Gold Based Brazing Alloys

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’.

Product Forms

  • Wire
  • Powder
  • Brazing Paste
  • Foil
  • Preforms
  • Rings
Key Products Trade Name Au Cu Ni Ag Pd Mn Melting Range ℃ AMS AWS A5.8 EN1044: 1999 ISO 17672: 2016
Meta-Braze™ Au 375 37.5%Au/62.5%Cu 37.5 62.5 - - - - 980-998 - BAu-1 AU103 Au 375 V1
Meta-Braze™ Au 354 35%Au/65%Cu 35 65 - - - - 970-1005 - - - Au 354
Meta-Braze™ Au 025 Palnicorum 10 25 37 10 - 15 13 970-1013 - - - -
Meta-Braze™ Au 295 30%Au/70%Cu 30 70 - - - - 996-1018 - - AU104 Au 295 V1
Meta-Braze™ Au 351 Nicoro 35 62 3 - - - 1000-1030 - BAu-3 - Au 351
Meta-Braze™ Au 070 70%Au/30%Ag 70 - - 30 - - 1030-1040 - - - -
Meta-Braze™ Au 700 Palniro 7 70 - 22 - 8 - 1005-1045 4786 BAu-6 - Au 700
Meta-Braze™ Au 507 Palniro 1 50 - 25 - 25 - 1102-1121 4784 - - Au 507
Meta-Braze™ Au081 Nicoro 80 81.5 16.5 2 - - - 910-925 - - - -
Meta-Braze™ Au 800 80%Au/20%Cu 80 20 - - - - 890 - BAu-2 - Au 800
Meta-Braze™ Au 625 62%Au/38%Cu 62.5 37.5 - - - - 930-940 - - AU102 Au 625 V1
Meta-Braze™ Au 827 Nioro 82 - 18 - - - 950 4787 BAu-4 AU105 Au 827 V1
Meta-Braze™ Au 503 50%Au/50%Cu 50 50 - - - - 955-970 - - - Au 503

Meta-Braze™ Palladium Bearing Brazing Alloys

High purity palladium containing brazing alloys find use in a variety of applications including electronic components for imaging, aerospace, oil and gas and chemical. The alloys in this range are often selected because they can be produced in ultra pure V1 grade, sometimes called ‘vacuum tube grade’, making them suitable for brazing metallised ceramics in electronic components. Palladium bearing alloys also exhibit good corrosion resistance and strength at elevated temperatures.

Product Forms

  • Wire
  • Powder
  • Brazing Paste
  • Foil
  • Preforms
  • Rings
Key Products Trade Name Pd Ag Cu Ni Other Melting Range ℃ AWS A5.8 EN1044: 1999 ISO 17672: 2016
Meta-Braze™ Pd 030 - 30 70 - - - 1150-1225 - - -
Meta-Braze™ Pd 647 Palni 60 - - 40 - 1237 - PD201 Pd 647 V1
Meta-Braze™ Pd 047 Palnisi 47 46.7 - - 47.2 - 851 - - -
Meta-Braze™ Pd 065 Palco 65 - - - - 1219 BPd-1 - -
Meta-Braze™ Pd 388 - 10 67.5 22.5 - - 834-840 - PD104 Pd 388 V1
Meta-Braze™ Pd 387 Palcusil 10 10 58 32 - - 824-850 BAg-31 PD105 Pd 387 V1
Meta-Braze™ Pd 481 Palcusil 15 15 65 20 - - 856-880 - PD103 Pd 481 V1
Meta-Braze™ Pd 484 Palcusil 20 20 52 28 - - 876-900 - PD102 Pd 484 V1
Meta-Braze™ Pd 587 Palcusil 25 25 54 21 - - 901-950 BAg-32 PD101 Pd 587 V1
Meta-Braze™ Pd 288 Palsil 5 5 95 - - - 970-1010 - PD204 Pd 288 V1
Meta-Braze™ Pd 483 18%Pd/82%Cu 18 - 82 - - 1080-1090 - PD203 Pd 483 V1
Meta-Braze™ Pd 485 Palmansil 5 20 75 - - - 1000-1120 - - Pd 485
Meta-Braze™ Pd 287 Palcusil 5 5 68.5 26.5 - - 807-810 BAg-30 PD106 Pd 287 V1

Meta-Braze™ High Purity Silver Brazing Alloys

High purity silver containing brazing alloys find use in a variety of applications predominantly in electronic components. A major use is for joining metallised ceramics used in vacuum tube devices. The addition of nickel to Meta-Braze™ Ag 071 improves wetting on stainless steel components, whilst the indium containing Meta-Braze™ Ag 063 and Meta-Braze™ Ag 061 provide the possibility for a step brazing operation when used with Meta-Braze™ Ag 272.

Product Forms

  • Wire
  • Powder
  • Brazing Paste
  • Foil
  • Preforms
  • Rings
Key Products Trade Name Ag Cu Ni Other Melting Range ℃ AWS A5.8 EN1044: 1999 ISO 17672: 2016
Meta-Braze™ Ag 272 Cusil 72 28 - - 778 BAg-8 AG401 Ag 272 V1
Meta-Braze™ Ag 071 Nicusil 3 71.15 28.1 0.75 - 780-795 BAg-8b - -
Meta-Braze™ Ag 063 Incusil 10 63 27 - - 685-730 - - -
Meta-Braze™ Ag 061 Incusil 15 61.5 23.5 - - 605-725 - - -