ASTM F106-95

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: F 106 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
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Brazing Filler Metals for Electron Devices
This standard is issued under the fixed designation F 106; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4.1.1 Quantity,
4.1.2 Dimensions and tolerances (Table 1),
1.1 This specification covers requirements or filler metals
4.1.3 Form (rod, bar, wire, etc.),
suitable for brazing internal parts and other critical areas of
4.1.4 AWS classification (Table 2),
electron devices in a nonoxidizing atmosphere (Note 1).
4.1.5 Grade 1 or 2,
1.2 These materials are available in strip or wire or preforms
4.1.6 Special requirements or exceptions, and
made by blanking the strip or bending the wire. Powders are
4.1.7 Certification—State if certification is required.
also available.
NOTE 1—Brazing filler metals for general applications are specified in 5. Materials and Manufacture
AWS Specification A 5.8.
5.1 The brazing filler metals shall be vacuum grade and
1.3 The values stated in inch-pound units are to be regarded
fabricated by any method that yields a product conforming to
as the standard. The values given in parentheses are for
the requirements of this specification.
information only.
6. Chemical Composition
2. Referenced Documents
6.1 The finished brazing filler metal shall conform to the
2.1 ASTM Standards:
chemical composition shown in Table 2 for Grade 1 or Grade
B 214 Test Method for Sieve Analysis of Granular Metal 2 material.
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Powders
7. Mechanical Properties
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
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poses
7.1 Unless otherwise specified, wire shall be furnished in
F 19 Test Method for Tension and Vacuum Testing Metal-
soft temper most suitable for hand feeding or ring winding on
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lized Ceramic Seals mandrels. A minimum elongation of 10 % in 2 in. (50.8 mm)
2.2 American Welding Society:
indicates that the wire is annealed.
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A 5.8 Specification for Brazing Filler Metals 7.2 Unless otherwise specified, strip shall be furnished in
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C 3.2 Method for Evaluating the Strength of Brazed Joints
hard as-rolled temper to facilitate clean blanking of thin shims
or preforms. A maximum elongation of 5 % in 2 in. designates
3. Classification
the strip as hard.
3.1 Brazing filler metals which are vacuum grade and are
8. Dimensions and Permissible Variations
classified on the basis of chemical composition shown in Table
1. The difference between Grade 1 and 2 are the impurity 8.1 These materials must conform to the dimensional limi-
limitations. Grade 1 required generally lower levels of impu-
tations listed in Table 2 for strip, wire, and preforms or Table
rities. 3 for size of powdered brazing filler metals.
4. Ordering Information 9. Finish
9.1 The surface of strip, wire, or preforms shall be as
4.1 Orders for material to this specification shall include the
following information: smooth and free of dirt, oxide, pits, deep scratches, seams,
slivers, stains, scale, blisters, edge cracks, trimming burrs,
waves, wrinkles, and other defects as best commercial practice
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This specification is under the jurisdiction of ASTM Committee F-1 on
will permit.
Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic
Materials.
10. Melting Test (for Cleanness and Spatter)
Current edition approved Nov. 10, 1995. Published January 1996. Originally
10.1 Requirements—Since cleanness and spattering are im-
published as F 106 – 69 T. Last previous edition F 106 – 84 (1991).
2
Annual Book of ASTM Standards, Vol 02.05.
portant considerations in the use of these materials, a special
3
Annual Book of ASTM Standards, Vol 14.02.
melting test is used to determine their suitability. For this test,
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Annual Book of ASTM Standards, Vol 10.04.
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the melting temperatures required are listed in Table X1.1. The
Available from American Welding Society, 2501 Northwest 7th St., Miami, FL
33125. material shall also comply with the requirements of 10.2.4.
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F 106
TABLE 1 Dimensional Tolerances (All Plus or Minus)
Width Tolerances, in. (mm)
Thickness 8 in. (200 mm) wide and under Over 8 in. (200 mm) wide
Less than 0.020 (0.5) 0.005 (0.125) 0.015 (0.38)
0.020 to 0.050 (0.5 to 1.25), incl 0.010 (0.250) 0.015 (0.38)
Thickness Tolerances—Strip
Thickness, in. (mm) 8 in. (200 mm) wide and under Over 8 in. (200 mm) wide
Up to 0.002 (0.05), incl 0.0002 (0.005) 0.0005 (0.0125)
Over 0.002 to 0.003 (0.05 to 0.075), incl 0.00
...