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This specification covers brazing filler metals for use in electron devices in a nonoxidizing atmosphere. Material covered by this specification consists of vacuum grade (Grades 1 and 2) brazing filler metals manufactured in the form of strip, wire, or preforms made by blanking the trip or bending the wire. Brazing filler metals in the form of powder are also available. Filler metals in wire form shall be in soft temper condition, most suitable for hand feeding or ring winding in mandrels, while those in strip form shall be in hard as-rolled temper condition to facilitate clean blanking of thin shims or preforms. The surface of the filler metal, whether strip, wire, or preform, shall be as smooth and free of dirt, oxide, pits, deep scratches, seams, slivers, stains, scale, blisters, edge cracks, trimming burrs, waves, wrinkles, and other defects as commercially possible. Melting test for cleanness and spatter shall be performed and shall conform to the requirements specified.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers requirements or filler metals suitable for brazing internal parts and other critical areas of electron devices in a nonoxidizing atmosphere (Note 1).
1.2 These materials are available in strip or wire or preforms made by blanking the strip or bending the wire. Powders are also available.
Note 1—Brazing filler metals for general applications are specified in AWS Specification A 5.8.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B214 Test Method for Sieve Analysis of Metal Powders
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
F19 Test Method for Tension and Vacuum Testing Metallized Ceramic Seals
American Welding SocietyC3.3 Recommended Practices for Design, Manufacture and Inspection of Critical Brazed Components
ICS Number Code 25.160.50 (Brazing and soldering)
UNSPSC Code 26121500(Electrical wire)
ASTM F106-12, Standard Specification for Brazing Filler Metals for Electron Devices , ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top