Brazing Foil and Preforms

Metglas Icon - Metal Joining - Brazing Foil

METGLAS HIGH PERFORMANCE BRAZING FILLER METALS

Metglas® Brazing Foils (MBF’s) and preforms provide extensive manufacturing and performance advantages over conventional metal joining materials. This unique form of amorphous nickel based brazing filler metal can substitute for previously used copper foil or nickel powder to braze stainless steel base metal. This amorphous nickel foil provides high strength and outstanding corrosion resistance of brazed joints.

*Metglas Brazing Foils can be slit to specific widths and/or stamped into precise shapes for any application.

Metglas Brazing Foils Compositions

BRAZING ALLOYS

Quote AWS & AMS Classifications Nominal Composition, wt %  Melting Tempt °C (°F) Braze Temp.
(Approx.)
°C (°F)
Density
g/cm3 (lb/in3)
 Cr Fe Si C* B P Mo Ni Solidus Liquidus
MBF15  –  13.0  4.2  4.5 0.03 2.8 Bal  965
(1769)
 1103
(2017)
1135
(2075)
7.2
(0.283)
MBF20  AWS BNi2
AMS 4777
 7.0  3.0 4.5  0.06 3.2  – Bal 969
(1776)
1024
(1875)
1055
(1931)
7.88
(0.285)
MBF30  AWS BNi3
AMS 4778
 4.5 0.06 3.2 Bal 984
(1803)
 1054
(1929)
1085
(1985)
8.07
(0.291)
MBF50  AWS BNi5a  19.0 7.3 0.08 1.5 Bal 1052
(1924)
 1144
(2091)
1170
(2138)
7.70
(0.278)
MBF51  AWS BNi5b  15.0 7.25 0.06 1.4 Bal 1030
(1886)
1126
(2058)
1195
(2183)
7.73
(0.278)
MBF53  – 15.0 7.3 0.06 1.4 5.0 Bal 1045
(1900)
1127
(2060)
1195
(2183)
7.75
(0.280)
 MBF60  AWS BNi6  – 0.10 11.0  – Bal  883
(1621)
921
(1688)
950
(1742)
8.14
(0.294)
MBF62  21.0 <1 0.5 0.5 8.0 1.0 Bal 878
(1612)
940
(1724)
1020
(1868)
7.74
(0.280)
 MBF64  –  17.5 4.0 3.0 0.75 5.0 1.0 Bal 913
(1675)
978
(1792)
1010
(1850)
7.68
(0.277)
 MBF67  –  25 <1 1.5 0.5 6.0 1.5 Bal 890
(1634)
970
(1778)
1100
(2012)
7.70
(0.278)
 MBF601  –  16.0 32 1.5 0.5 6.0 1.5 Bal  960
(1760)
1030
(1886)
 1060
(1940)
 7.57
(0.273)
 MBF602  –  11.0 35 1.5 0.5 6.0 1.5 Bal 910
(1670)
1020
(1868)
1050
(1922)
7.6
(0.275)
 MBF80  AWS BNi9  15.2 0.06 4.0 Bal 1048
(1918)
1091
(1996)
1120
(2045)
7.94
(0.278)

*Maximum concentration

SPECIALTY ALLOYS

Quote Nominal Composition, wt %  Melting Tempt °C (°F) Braze Temp.
(Approx.)
°C (°F)
Density
g/cm3 (lb/in3)
 Cr Co Pd Si C* B Mo Nb Ni Solidus Liquidus
MBF90 20.0 4.0 2.7 Bal 966
(1770)
1060
(1940)
1090
(1994)
8.39
(0.303)
MBF91 14.0 9.0 4.0 4.0 Bal 1065
(1949)
1104
(2019)
1140
(2084)
8.0
(0.289)
MBF92 14.0 9.0 4.0 Bal 1064
(1947)
1082
(1980)
1110
(2030)
8.01
(0.289)
MBF1005 46.7 6.1 Bal 810
(1490)
851
(1564)
880
(1616)
9.93
(0.358)
MBF1011 5.0 45.5 5.0 4.5 Bal 847
(1557)
895
(1643)
925
(1697)
9.11
(0.329)
MBF1012 10.5 36.0 0.5 3.0 Bal 820
(1508)
960
(1760)
990
(1814)
8.80
(0.318)

*Maximum concentration

APPLICATIONS FOR BRAZING FOIL

METGLAS HIGH PERFORMANCE BRAZING FILLER METALS

Metglas® Brazing Foils (MBF’s) and preforms provide extensive manufacturing and performance advantages over conventional metal joining materials. This unique form of amorphous nickel based brazing filler metal can substitute for previously used copper foil or nickel powder to braze stainless steel base metal. This amorphous nickel foil provides high strength and outstanding corrosion resistance of brazed joints.

*Metglas Brazing Foils can be slit to specific widths and/or stamped into precise shapes for any application.

Metglas Brazing Foil Compositions

*Maximum concentration

*Maximum concentration

APPLICATIONS FOR BRAZING FOIL

ADVANTAGES AND BENEFITS OF MBFs

Metglas Brazing Foils (MBF’s) provide extensive manufacturing and performance advantages over conventional brittle brazing filler metals. Some of these advantages include a wide variety of widths and thickness for any type of project, corrosive resistance for long lasting stability and ease of installation.

Click to see Benefits
  • Unique 100% metallic foil form possesing outstanding ductility
    • MBF’s bend 180° without fracturing to comply with complex joint geometries to ease placement fixturing; ductile enough to be mechanically stamped and shaped to three-dimensional configurations.
  • Wide range of brazing temperatures
    • Covering melting temperatures from 950°C (1742°F) to 1195°C (2183°F).
  • Contaminant-free
    • For prolonged brazing furnace life.
  • Fast melting and outstanding wetting and flow
    • For void-free, optimum strength joints.
  • Wide range of base metals successfully brazed
    • Covering but not limited to all stainless steels, super alloys, hard cemented carbides and low carbon steels.
  • Wide range of widths
    • For easy brazing of small and large areas.
  • Range of thicknesses available
    • For optimized joint gaps, including very thin foil, 20µm (0.78 mil) for decreased erosion of base metal.
  • Ease of assembling automation
    • For enhanced manufacturing efficiency.
  • Consistent performance
    • A virtually reject-free brazing operation in one heating cycle.
  • Precise metering and ability to be used as preforms
    • Eliminates waste and creates high quality joints.
  • Unlimited shelf life
Click to see Advantages
  • VS. Mechanically-fastened joints
    • MBF’s provides higher strength, leak tightness, and superior resistance to shock and vibration. Lighter gauge base metals may be used for substantial weight savings since MBF’s provide continuous, uniform joints.
  • VS. Welding
    • MBF’s provides much higher processing efficiency. The lower melting temperature of MBF’s eliminates melting of base metals. No joint cleaning or finishing is required.
  • VS. Adhesive bonding and soldering
    • MBF’s offers superior strength, flexibility and temperature and oxidation resistance.
  • VS. Powder, paste and tape forms of brazing
    • MBF’s contains no organic binders, thus eliminating contaminating residues and reducing furnace cycle times. Completely homogeneous, 100% metal MBF’s alloy optimizes brazed joint formation and performance. Reliable melting and flow reduces rework and rejects too.

MAXIMUM WIDTHS BY THICKNESSES

Metglas® Brazing Foils can be produced in a number of widths and thickness configurations, use this chart to determine if we have a standard size that will fit your application. Widths and thicknesses not on this chart may be custom ordered.

Click to see Widths
Quote Standard Foil Thickness  MSDS PDFs
 0.0010 “
(25.4 µm)
 0.0015 “
(38.1µm)
 0.0020 “
(50.8 µm)
 0.0025 “
(63.5 µm)
 0.0030 “
(76.2 µm)
MBF15  4.0 “
(101.6 mm)
4.0 “
(101.6 mm)
PDF
MBF20 8.5 “
(215.6 mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
PDF
MBF30 8.5 “
(215.6mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
8.5 “
(215.6mm)
PDF
MBF50* 6.7 “
(170.2 mm)
6.7 “
(170.18 mm)
PDF
MBF51  8.5 “
(215.6 mm)
8.5 “
(215.6 mm)
8.5 “
(215.6 mm)
PDF
MBF53  4.0 “
(101.6 mm)
4.0 “
(101.6 mm)
PDF
MBF60 3.0 “
(76.2 mm)
2.0 “
(50.8 mm)
PDF
MBF62 6.7″
(170.2 mm)
8.5″
(215.6 mm)
4.0″
(101.6 mm)
PDF
MBF64 6.7″
(170.2 mm)
 8.5″
(215.9 mm)
PDF
MBF67 6.7 “
(170.18 mm)
8.5″
(215.9 mm)
 PDF
MBF601  6.7 “
(170.18 mm)
 8.5″
(215.9 mm)
 
MBF602  6.7 ”
(170.18 mm)
 8.5″
(215.9 mm)
MBF80 2.0 ”
(50.8 mm)
2.0 ”
(50.8 mm)
PDF

* Available at thickness dow to 0.00078″ (20 µm).
 Specialty Alloys available in 2.0 inch widths and various thickness

AVAILABLE WIDTHS & THICKNESSES REFERENCE

Metglas® Brazing Foils can be produced in a number of widths and thickness configurations, use this chart to determine if we have a standard size that will fit your application. Widths and thicknesses not on this chart may be custom ordered.

Click to Expand

* Available at thickness dow to 0.00078″ (20 µm).
 Specialty Alloys available in 2.0 inch widths and various thickness

SPECIFICATIONS & CROSS REFERENCES

Quote AWS AMS Pratt
&
Whitney
General
Electric
Garrett
Engine
Division
EMS 54752
SNECMA
DMR 35
Rolls Royce
MSRR9500
MSDS
MBF15  – PWA996
CPW494
 – -XIII
705F
MBF20 BNi2 4777 -II .302
97F
MBF30 BNi3 4778  – B50TF205 -I .034
114F
MBF50 BNi5a  – B50TF217*
722F
MBF51 BNi5b  – PDF
MBF60 BNi6 WA3610 -XI
727F
MBF80 BNi9  – B50TF207 VIII .307
719F
MBF1012  – PWA36099
CPW475
PDF

* Alternative to GEB50TF81 powder and AMS 4782

Specifications & Cross Reference
Mobile Version- Specifications and Cross References Table

* Alternative to GEB50TF81 powder and AMS 4782