Braze Alloys

Precious Brazing Filler Metals

Our extensive range of high purity, low vapor pressure precious brazing filler metals is derived from silver, platinum and palladium based materials, and exceeds the most stringent requirements imposed by the Power Tube, Aerospace, Semiconductor, Medical, Electronic and Vacuum Industries in which they serve.

Precious Brazing Filler Metals Properties

The table below lists the major alloys available, and the forms produced include sheet, wire, paste, powder and preforms.

Name

Nominal Composition Percent

Liquidus

Solidus

°C

°F

°C

°F

Platinum

Pt – 99.997

1769

3216

1769

3216

Palladium

Pd – 99.99

1555

2831

1555

2831

Paloro®
(BAu-8)

Au – 92
Pd – 8

1270

2318

1200

2192

Palni®

Pd – 60
Ni – 40

1238

2260

1238

2260

Palco®
(BPd-1)

Pd – 65
Co – 35

1219

2226

1219

2226

Palnicusil®

Pd – 22.5
Ni – 10
Cu – 18.9
Ag – 48.6

1179

2155

910

1670

Palniro®-4
(AMS-4785)

Au – 30
Pd – 34
Ni – 36

1169

2136

1135

2075

Palniro®-1
(AMS-4784)

Au – 50
Pd – 25
Ni – 25

1121

2050

1102

2016

Palmansil™ 5

Au – 75
Pd – 20
Mn – 5

1072

1962

1008

1846

Palsil®-10

Ag – 90
Pd – 10

1070

1958

1025

1877

Palnicurom® 25

Au – 25
Ni – 18
Pd – 15
Mn – 11
Cu – 31

1052

1926

1017

1863

Palniro®-7
(AMS-4786)

Au – 70
Pd – 8
Ni – 22

1037

1899

1005

1841

Nicoro®
(BAu-3)

Au – 35
Cu – 62
Ni – 3

1030

1886

1000

1832

Incuro™-20

Au – 20
Cu – 78
In – 2

1025

1877

975

1787

Palnicurom®-10

Au – 25
Pd – 15
Ni – 10
Mn – 13
Cu – 37

1013

1855

970

1778

35% Gold
65% Copper

Au – 35
Cu – 65

1010

1850

990

1814

Nioroni™

Au – 73.8
Ni – 26.2

1010

1850

980

1796

37.5% Gold
62.5% Copper

Au – 37.5
Cu – 62.5

1005

1841

985

1805

RI-46

Au – 35
Ni – 14
Pd – 10
Mn – 9.5
Cu – 35.5

1004

1840

971

1780

40% Gold
60% Copper

Au – 40
Cu – 60

1000

1832

980

1796

Croniro®

Au – 72
Ni – 22
Cr – 6

1000

1832

975

1787

50% Gold
50% Copper

Au – 50
Cu – 50

970

1778

955

1751

Silver
(BAg-0)

Ag – 99.99

960

1760

960

1760

Palnicro®-36-M

Pd – 36
Cr – 10.5
B – 3
Si – 0.5
Ni – Bal

960

1760

820

1508

Nioro™
(AMS-4787; BAu-4)

Au – 82
Ni – 18

955

1751

955

1751

Palcusil®-25

Ag – 54
Cu – 21
Pd – 25

950

1742

900

1652

RI-49

Au – 31
Ni – 9.75
Pd – 9.75
Mn – 16
Cu – 33.5

949

1740

927

1700

Nicoro®-80

Au – 81.5
Cu – 16.5
Ni – 2

925

1697

910

1670

80% Gold
20% Copper

Au – 80
Cu – 20

910

1670

908

1666

Palcusil®-15

Ag – 65
Cu – 20
Pd – 15

900

1652

850

1562

Incuro™ 60

Au – 60
Cu – 37
In – 3

900

1652

860

1580

Silcoro®-75

Au – 75
Cu – 20
Ag – 5

895

1643

885

1652

Nicusil®-8
(AMS-4765)

Ag – 56
Cu – 42
Ni – 2

893

1639

771

1420

Palcusil®-10

Ag – 58.5
Cu – 31.5
Pd – 10

850

1535

805

1490

Gapasil®-9

Ag – 82
Pd – 9
Ga – 9

880

1616

845

1553

Silcoro®-60

Au – 60
Cu – 20
Ag – 20

845

1553

835

1535

95% Silver
5% Aluminium

Ag – 95
Al – 5

830

1526

780

1436

Palcusil®-5

Ag – 68.5
Cu – 26.5
Pd – 5

814

1490

794

1463

Nicusiltin™6
(AMS-4774A)

Ag – 62.5
Cu – 29
Ni – 2.5
Sn – 6

802

1476

691

1275

Nicusil®-3

Ag – 71.15
Cu – 28.1
Ni – 0.75

795

1463

780

1436

90% Silver
10% Gernamium

Ag – 90
Ge – 10

790

1454

651

1204

Cusil®
(BAg-8)

Ag – 72
Cu - 28

780

1436

780

1436

Cusiltin™-5

Ag – 68
Cu – 27
Sn – 5

760

1400

743

1369

Incusil®-10

Ag – 63
Cu – 27
In – 10

730

1346

685

1265

Cusiltin™-10
(AMS-4773)

Ag – 60
Cu – 30
Sn – 10

718

1324

602

1116

Incusil®-15

Ag – 61.5
Cu – 23.5
In – 15

725

1335

605

1120

Georo™

Au – 88
Ge – 12

361

682

361

682

Orotin™

Au – 80
Sn – 20

280

536

280

536

Special Alloys: we will be pleased to quote your special requests.

Zn – Less than .001%
Cd– Less than .001%
Pb – Less than .002%
P - Less than .002%
C - Less than .005%

Impurity limits – All other metallic impurities having a vapor pressure higher than 10-7 mm Hg at 500°C are limited to .002% each. Impurities having a vapor pressure lower than 10-7 mm Hg at 500°C are limited to a total of .050%. (Applicable to all forms except powder and extrudable paste).