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ISO Certified Since 1994
Brazing Material Classifications
Metglas® Brazing Foil & Preforms
 

Components with rigid dimensional tolerances and high strength/stiffness-to-weight ratios are needed to handle the stresses inherent in aerospace applications. Metglas® Brazing Foil (MBF) from Metglas, Inc. is produced as thin as 18 µm (0.7 mil) to satisfy these requirements. It gives consistently reliable and strong joints. Metglas® High Purity Brazing Alloy can meet todays demanding industrial, automotive, and aerospace brazing applications.


MBF
Alloy


AWS & AMS
Classifications


Nominal Composition, wt. %

Cr

Fe

Si

C*

B

P

W

Co

Ni

15

 

13.0

4.2

4.5

0.03

2.8

-

-

1.0*

Bal

20

AWS BNi2/AMS 4777

7.0

3.0

4.5

0.06

3.2

-

-

-

Bal

30

AWS BNi3/AMS 4778

-

-

4.5

0.06

3.2

-

-

-

Ba

50

AWS BNi-5a

19.0

-

7.3

0.08

1.5

-

-

-

Bal

51

  AWS BNi-5b

15.0

 

7.25

0.06

1.4

-

-

 

Bal

55

 

5.3

-

7.3

0.08

1.4

-

-

-

Bal

60

AWS BNi6

-

-

-

0.10

-

11.0

-

 

Bal

80

 

15.2

-

-

0.06

4.0

-

-

-

Bal

Foils are available with more rigid dimensional tolerances as specialty or "A" grades
* Maximum concentration



MBF
Alloy


AWS & AMS
Classifications


Melting Temp.
°C (°F)


Braze Temp.
(Approx.)


Density
g/cm3 (lbm/in3)

Solidus

Liquidus

oC (oF)

 

15

 

965
(1769)

1103
(2017)

1135
(2075)

7.82
(0.283)

20

AWS BNi2/AMS 4777

969
(1776)

1024
(1875)

1055
(1931)

7.88
(0.285)

30

AWS BNi3/AMS 4778

984
(1803)

1054
(1929)

1085
(1985)

8.07
(0.291)

50

AWS BNi-5a

1052
(1924)

1144
(2091)

1170
(2138)

7.70
(0.278)

51

AWS BNi-5b 

1030
(1886)

1126
(2058)

1195
(2183)

7.73
(0.278)

55

 

950
(1742)

1040
(1904)

1070
(1958)

7.72
(0.279)

60

AWS BNi6

883
(1621)

921
(1688)

950
(1742)

8.14
(0.294)

80

 

1048
(1918)

1091
(1996)

1120
(2045)

7.94
(0.278)

 

Aerospace Brazing Applications
Compressor Vane and Shroud Assemblies (Stators)
Rotating Blade Porous Metal (Feltmetal) Seals
Available Foil Geometry
Brazing Honeycomb
Other Applications

Metglas® Brazing Foils And Preforms(104k)

All Metglas® Technical Bulletins
Metglas Brazing Filler Metal "Brazing Alloy", is the preferred choice in many demanding applications. From Aerospace applications that require consistent, strong joints, to catalytic converters, that require high heat and corrosion resistance, Metglas Brazing Alloy has continuously met and exceeded manufactures requirements in most brazing applications.

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