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Brazing Alloys

Brazing Alloys

Brazing has been defined as a group of joining processes specially arranged in a manner to produce coalescence of materials. The process involves heating of these materials at a brazing temperature by using a filler metal which has a liquidus above 840°F (450°C), and below the solidus of the base metals. Also, the filler metal is distributed in the joint by capillary action.

The brazing process consists of the broad heating of the base metals to the point where the filler metal, applied to the joint area, will be melted and drawn by capillary action through the entire joint. After cooling, the brazed joint constitutes a strong metallurgical bond between the filler metal and the two base metals.

Two outstanding characteristics of a brazed joint are its high strength, and the low heat at which it is made. A properly made brazed joint will generally be stronger than the metals being joined. And the temperature at which the joint is made is much lower than the melting temperature of the metals being joined.

Brazing Alloy Products

Team Tron Services supplies an array of Brazing Alloys. Some of our products include:

Product Id: Cu62Au35Ni3

Specifications:
  • Brazing Temperature Range High: 1950℉ / 1066℃
  • Brazing Temperature Range Low: 1900℉ / 1038℃
  • Liquidus: 1850℉ / 1010℃
  • Solidus: 1814℉ / 990℃
Typical Composition:
  • Cu: 62%
  • Au: 35%
  • Ni: 3%

Product Id: AU80CU20

Product Id: AU80CU20

Alternate Names
  • AWS: BAu-2
  • UNS: P00800
Specifications
  • Brazing Temperature Range High: 1735℉ / 946℃
  • Brazing Temperature Range Low: 1635℉ / 891℃
  • Liquidus: 1635℉ / 891℃
  • Solidus: 1635℉ / 891℃
Typical Composition
  • Cu: 80%
  • Au: 20%
  • Ni: -
Product Id: Au82Ni18

Product Id: Au82Ni18

Alternate Names
  • AMS: 4787
  • AWS: BAu-4
  • UNS: P00820
Specifications
  • Brazing Temperature Range High: 1845℉ / 1004℃
  • Brazing Temperature Range Low: 1790℉ / 977℃
  • Liquidus: 1740℉ / 949℃
  • Solidus: 1740℉ / 949℃
Typical Composition
  • Cu: 82%
  • Au: 18%
  • Ni: -

High-purity Gold/Copper Alloy for Vacuum Brazing

Nominal composition by weight: 50% Au and 50% Cu (±1%).

Features
Prime Features

Suitable for brazing assemblies of copper, nickel and Kovar (Ni-Co-Fe alloy) High-integrity brazed joint duties.

Specifications

Nominal Composition by weight: 50% Au and 50% Cu (±1%).

Impurity Limits
  • ZN: less than 0.001%
  • CD: less than 0.001%
  • PB: less than 0.002%
  • P: less than 0.002%
  • C: less than 0.01%

Supplied as: Foil, Flexi braze, Wire, Powder, Paste

Physical Properties
  • Liquidus Temperature 970 ℃: 1778 ℉
  • Solidus Temperature 955 ℃: 1751 ℉

Product Id: Ni50Pd36Cr10.5B3Si0.5

Specifications:
  • Brazing Temperature Range High: 1860℉ / 1016℃
  • Brazing Temperature Range Low: 1810℉ / 988℃
  • Liquidus: 1760℉ / 960℃
  • Solidus: 1508℉ / 820℃
Typical Composition:
  • Ni: 504%
  • Pd: 36%
  • Cr: 10.5%
  • B: 3%
  • Si: 0.5%
Equivalent to:
  • AWS: BAu-3
  • UNS: P00350

Product Id: Ni36Pd34Au30

Specifications:
  • Brazing Temperature Range High: 2230℉ / 1221℃
  • Brazing Temperature Range Low: 2180℉ / 1193℃
  • Liquidus: 2130℉ / 1166℃
  • Solidus: 2075℉ / 1135℃
  • Standard: AWS: BAu-5
Typical Composition:
  • Ni: 36%
  • Pd: 34%
  • Au: 30%

Silver Copper Brazing Alloy (Braze 72)

Description

Silver Braze 72 is generally used to join silver, copper and nickel base alloys. It is also widely used to join metallized ceramics to metals in a vacuum. The VTG version of Silver Braze 72 is designed for all types of moderate temperature vacuum systems.

Silver Braze 72 conforms to American Welding Society (AWS) A5.8/A5.8M BAg-8. Silver Braze VTG Grades 1 and 2 conform to BVAg-8.

Features & Specifications
Available Forms:

Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.

Specifications:
  • Brazing Temperature Range High: 1535℉ / 835℃
  • Brazing Temperature Range Low: 1435℉ / 779℃
  • Liquidus: 1435℉ / 779℃
  • Solidus: 1435℉ / 779℃
Typical Composition:
  • Ag: 72%
  • Cu: 28%

Silver Copper Palladium Brazing Alloys

Ag65Cu20.3Pd14.7

Product Id: Ag65Cu20.3Pd14.7

Specifications:
  • Brazing Temperature Range High: 1752℉ / 956℃
  • Brazing Temperature Range Low: 1702℉ / 928℃
  • Liquidus: 1652℉ / 900℃
  • Solidus: 1562℉ / 850℃
Typical Composition:
  • Ag: 65%
  • Cu: 20.3%
  • Pd: 14.7%
Ag58Cu32Pd10

Product Id: Ag58Cu32Pd10

Specifications:
  • Brazing Temperature Range High: 1665℉ / 907℃
  • Brazing Temperature Range Low: 1615℉ / 879℃
  • Liquidus: 1565℉ / 852℃
  • Solidus: 1515℉ / 824℃
Typical Composition:
  • Ag: 58%
  • Cu: 32%
  • Pd: 10%
Equivalent to:
  • UNS: P07587
  • AWS: BVAg-31

Product Id: Ag60Cu30Sn10

Specifications:
  • Brazing Temperature Range High: 1425℉ / 774℃
  • Brazing Temperature Range Low: 1375℉ / 746℃
  • Liquidus: 1325℉ / 718℃
  • Solidus: 1115℉ / 602℃
Typical Composition:
  • Ag: 60%
  • Cu: 30%
  • Sn: 10%
Equivalent to:
  • AMS: 4773
  • AWS: BAg-18
  • UNS: P07600

Product Id: Ag40Cu30Zn28Ni2

Specifications:
  • Brazing Temperature Range High: 1535℉ / 835℃
  • Brazing Temperature Range Low: 1485℉ / 807℃
  • Liquidus: 1435℉ / 779℃
  • Solidus: 1220℉ / 660℃
Typical Composition:
  • Ag: 40%
  • Cu: 30%
  • Zn: 28%
  • Ni: 2%
Equivalent to:
  • AWS: BAg-4
  • UNS: P07400

Product Id: Ag56Cu22Zn17Sn5

Specifications:
  • Brazing Temperature Range High: 1305℉ / 707℃
  • Brazing Temperature Range Low: 1255℉ / 679℃
  • Liquidus: 1205℉ / 652℃
  • Solidus: 1145℉ / 618℃
Typical Composition:
  • Ag: 56%
  • Cu: 22%
  • Zn: 17%
  • Sn: 5%
Equivalent to:
  • AMS: 4763
  • AWS: BAg-7
  • UNS: P07563

Product Id: Ag54Pd25Cu21

Specifications:
  • Brazing Temperature Range High: 1840℉ / 1004℃
  • Brazing Temperature Range Low: 1790℉ / 977℃
  • Liquidus: 1740℉ / 949℃
  • Solidus: 1650℉ / 899℃
Typical Composition:
  • Ag: 54%
  • Pd: 25%
  • Cu: 21%

Product Id: Ag49Zn23Cu16Mn7.5Ni4.5

Specifications:
  • Brazing Temperature Range High: 1390℉ / 754℃
  • Brazing Temperature Range Low: 1340℉ / 727℃
  • Liquidus: 1290℉ / 699℃
  • Solidus: 1260℉ / 682℃
Typical Composition:
  • Ag: 49%
  • Zn: 23%
  • Cu: 16%
  • Mn: 7.5%
  • Ni: 4.5%
Equivalent to:
  • AWS: BAg-22
  • EN: AG-502
  • UNS: P07490

 About Us

Team Tron Services Inc.
35 Giordano Way
Vaughan, ON L6A 0H4
Canada

Supplier of Electronics, Advanced Materials, Automation & Technology