1、Designation:F10606 Designation: F106 12Standard Specification forBrazing Filler Metals for Electron Devices1This standard is issued under the fixed designation F106; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last
2、revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope *1.1 This specification covers requirements or filler metals suitable for brazing internal parts and other critical areas of elect
3、rondevices 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 alsoavailable.NOTE 1Brazing filler metals for general applications are specified in AWS Specification A 5.8.1.3The values stated
4、 in inch-pound units are to be regarded as the standard. The values given in parentheses are for informationonly.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only an
5、d are not considered standard.2. Referenced Documents2.1 ASTM Standards:2B214 Test Method for Sieve Analysis of Metal PowdersE11 Specification for Woven Wire Test Sieve Cloth and Test SievesF19 Test Method for Tension and Vacuum Testing Metallized Ceramic Seals2.2 American Welding Society:3A 5.8 Spe
6、cification for Brazing Filler MetalsC 3.2 Method for Evaluating the Strength of Brazed JointsC 3.3 Recommended Practices for Design, Manufacture and Inspection of Critical Brazed Components3. Classification3.1 Brazing filler metals which are vacuum grade and are classified on the basis of chemical c
7、omposition shown in Table 1. Thedifference between Grade 1 and 2 areis the allowable impurity limitations.content. Grade 1 requiredrequires generally lower levelsof impurities.4. Ordering Information4.1 Orders for material to this specification shall include the following information:4.1.1 Quantity,
8、4.1.2 Dimensions and tolerances (Table 1Table 2),4.1.3 Form (rod, bar, wire, etc.),4.1.4 AWS classification (Table 2Table 1),4.1.5 Grade 1,4.1.6 Special requirements or exceptions, and4.1.7 Certification State if certification is required.5. Materials and Manufacture5.1 The brazing filler metals sha
9、ll be vacuum grade and fabricated by any method that yields a product conforming to therequirements of this specification.1This specification is under the jurisdiction of ASTM Committee F01 on Electronics and is the direct responsibility of Subcommittee F01.03 on Metallic Materials.Current edition a
10、pproved Jan.Feb. 1, 2006.2012. Published January 2006.March 2012. Originally approved in 1969 as F106 69 T. Last previous edition approved in20002006 as F106 006. DOI: 10.1520/F0106-06.10.1520/F0106-12.2For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Servic
11、e at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126.1This document is not an ASTM standard and is intended only to provide the u
12、ser of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard
13、as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Chemical Composition6.1 The finished brazing filler metal shall conform to the chemical composition shown in Table 2 Tab
14、le 1 for Grade 1 material.7. Mechanical Properties7.1 Unless otherwise specified, wire shall be furnished in soft temper most suitable for hand feeding or ring winding onmandrels. A minimum elongation of 10 % in 2 in. (50.8 mm) indicates that the wire is annealed.7.2 Unless otherwise specified, stri
15、p shall be furnished in hard as-rolled temper to facilitate clean blanking of thin shims orpreforms. A maximum elongation of 5 % in 2 in. (50.8 mm) designates the strip as hard.8. Dimensions and Permissible Variations8.1 These materials must conform to the dimensional limitations listed in Table 2 f
16、or strip, wire, and preforms or to Table 3 forthe size distribution of powdered brazing filler metals.9. Finish9.1 The surface of strip, wire, or preforms shall be as smooth and free of dirt, oxide, pits, deep scratches, seams, slivers, stains,scale, blisters, edge cracks, trimming burrs, waves, wri
17、nkles, and other defects as best commercial practice will permit.10. Melting Test (for Cleanness and Spatter)10.1 Requirements Since cleanness and spattering are important considerations in the use of these materials, a special meltingtest is used to determine their suitability. For this test, the m
18、elting temperatures required are listed in Table X1.1. The material shallalso comply with the requirements of 10.2.4.10.2 Procedure:10.2.1 The melting test is performed on an “as-received” sample. Cut approximately 1 g (with clean, dry tools) into a clean,dense polycrystalline 99.5 % alumina crucibl
19、e or clean, fused silica crucible or boat which has been precleaned by air firing at1100C (2012F),2012F (1100C), min, and stored in a dry, dust-free location until required.10.2.2 Place samples and crucible in a dense polycrystalline or fused silica combustion tube muffle or equivalent, purge withdr
20、y 40F (40C) (40F) hydrogen, and heat to 20C (36F)36F (20C) above the liquidus, hold for 10 min, and then cool tounder 65C (149F)149F (65C) before stopping the hydrogen flow and removing the sample for inspection.TABLE 2 1 Chemical Composition Requirements (in Wt. %) for Vacuum Grade Filler Metals fo
21、r Electron DevicesA,B,CNOTE 1All finished material shall be reasonably smooth and bright and free from dirt, oil, grease, or other foreign material.NOTE 2 A complete designation of specified material must include the grade designation number (for example, BVAg-6b, Grade 1).NOTE 3Single values shown
22、are maximum percentages, except where otherwise specified.AWSClassifi-cationUNSDesigna-tionAg Au Cu Ni Co Sn Pd In Zn Cd Pb P CGrade 1-Vacuum grade filler metalsBVAg-0 P07017 99.95 min. . . . 0.05 . . . . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAg-6b P07507 49.051.0 . . . Remainder . .
23、. . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAg-8 P07727 71.073.0 . . . Remainder . . . . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAg-8b P07728 70.572.5 . . . Remainder 0.30.7 . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAg-18 P07607 59.061.0 . . . Remainder . . . .
24、 . . 9.510.5 . . . . . . 0.001 0.001 0.002 0.002 0.005BVAg-29 P07627 60.562.5 . . . Remainder . . . . . . . . . . . . 14.015.0 0.001 0.001 0.002 0.002 0.005BVAg-30 P07687 67.069.0 . . . Remainder . . . . . . . . . 4.55.5 . . . 0.001 0.001 0.002 0.002 0.005BVAg-31 P07587 57.059.0 . . . 31.033.0 . . .
25、 . . . . . . Remainder . . . 0.001 0.001 0.002 0.002 0.005BVAg-32 P07547 53.055.0 . . . 20.022.0 . . . . . . . . . Remainder . . . 0.001 0.001 0.002 0.002 0.005BVAu-2 P00807 . . . 79.580.5 Remainder . . . . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAu-3 P00351 . . . 34.5-35.5 Remainder 2.
26、5-3.5 . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAu-4 P00827 . . . 81.582.5 . . . Remainder . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAu-7 P00507 . . . 49.550.5 . . . 24.525.5 0.06 . . . Remainder . . . 0.001 0.001 0.002 0.002 0.005BVAu-8 P00927 . . . 91.093.0 . . . . . . .
27、. . . . . Remainder . . . 0.001 0.001 0.002 0.002 0.005BVAu-9 P00354 . . . 34.5-35.5 Remainder . . . . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVAu-10 P00503 . . . 49.5-50.5 Remainder . . . . . . . . . . . . . . . 0.001 0.001 0.002 0.002 0.005BVPd-1 P03657 . . . . . . . . . 0.06 Remainder
28、 . . . 64.066.0 . . . 0.001 0.001 0.002 0.002 0.005Grade 2 - Vacuum grade filler metalsBVCu-1x C14181 . . . . . . 99.99 min. . . . . . . . . . . . . . . . 0.002 0.002 0.002 0.002 0.005AAll vacuum grade filler metals are considered to be spatter free (refer to Melting Test, Section 10).BAll other ele
29、ments in addition to those listed in the table above, with a vapor pressure higher than 107Torr at 932F (500C) (such as Mg, Sb, K, Na, Li, Tl, S, Cs,Rb, Sc, Hg, Tc, Sr, and Ca) are limited to 0.001 % max each for Grade 1 vacuum grade filler metals and 0.002 % max each for Grade 2 vacuum grade filler
30、 metals. Theaccumulative total of all these high vapor pressure elements including zinc, cadmium, and lead is limited to 0.010 % max. The total of other impurities not included in thepreceding list is limited to 0.05 % max, except for BVCu-1x, which shall be 0.01 max.CFor the braze alloys shown, ana
31、lysis shall regularly be made only for the major alloying elements specified and the elements Zn, Cd, Pb, P, C (by Melting Test), Hg,Mg, and Sb. However, the presence of the other elements (listed above in Footnote B), with a vapor pressure higher than 107Torr at 932F (500C), outside the limitsspeci
32、fied shall constitute cause for rejection of the material.F106 122NOTE 2If the sample does not melt under these conditions, the composition is wrong or the temperature measurement is incorrect.10.2.3 If it is desired also to test for spattering, bridge the crucible or boat by a nickel channel whose
33、legs are designed to allowa small clearance, 0.06 in. (1.6 mm) max. above the crucible. An additional requirement is that the bridge be no more than 0.38in. (9.5 mm) above the metal bead.10.2.4 Examine the metal bead at 53 magnification. Just a light smokiness with no discrete black specks is the wo
34、rst that ispermitted. Since this examination depends on experience and judgment, standards can be developed by running carbondeterminations and comparing with the maximum carbon limitation listed in Table 2Table 1.10.2.5 If the spatter test is run, examine the bottom side of the nickel bridge, also
35、at 53 magnification, for evidence of anyspatter.11. Rejection11.1 The sellers responsibility will be limited to replacement of any filler metal that does not conform to the requirements ofthis specification.12. Certification12.1 A certification, when requested by the user, based on the manufacturers
36、 quality control that the material conforms to theTABLE 1 2 Dimensional Tolerances (All Plus or Minus)Width Tolerances, in. (mm)Thickness 8 in. (200 mm) wide and under Over 8 in. (200 mm) wideLess than 0.020 (0.5)0.020 to 0.050 (0.5 to 1.25), incl0.005 (0.125)0.010 (0.250)0.015 (0.38)0.015 (0.38)Thi
37、ckness TolerancesStripThickness, in. (mm) 8 in. (200 mm) wide and under Over 8 in. (200 mm) wideUp 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 0.0003 (0.0075) 0.0006 (0.015)Over 0.003 to 0.004 (0.075 to 0.10), incl 0.0004 (0.010) 0.0007 (0.018)Over 0
38、.004 to 0.006 (0.10 to 0.15), incl 0.0005 (0.0125) 0.0008 (0.02)Over 0.006 to 0.013 (0.15 to 0.33), incl 0.0010 (0.025) 0.0013 (0.033)Over 0.013 to 0.021 (0.33 to 0.53), incl 0.0015 (0.038) 0.0018 (0.046)Over 0.021 to 0.026 (0.53 to 0.66), incl 0.0020 (0.05) 0.0020 (0.05)Over 0.026 to 0.050 (0.66 to
39、 0.125), incl 0.0020 (0.05) 0.0050 (0.125)Camber TolerancesStrip (Edgewise Bowl)0.5 in. (12.5 mm) max in 6 ft (1.8 m)Diameter TolerancesWireDiameter, in. (mm) Tolerance, in. (mm)0.010 to 0.020 (0.250 to 0.5) 0.0003 (0.0075)Over 0.020 to 0.030 (0.5 to 0.75) 0.0005 (0.0125)Over 0.030 to 0.040 (0.75 to
40、 1.0) 0.0007 (0.018)Over 0.040 to 0.050 (1.0 to 1.25) 0.0008 (0.02)Over 0.050 to 0.060 (1.25 to 1.5) 0.0010 (0.025)Over 0.060 to 0.080 (1.5 to 2.0) 0.0015 (0.038)Over 0.080 to 0.250 (2.0 to 6.3) 0.0020 (0.05)TABLE 3 Standard Sieve AnalysesA100 mesh through No. 60 sieve100 % minthrough No. 100 sieve9
41、5 % min140C mesh on No. 100 sievetraceon No. 140 sieve10 % maxthrough No. 325 sieve20 % max140F mesh on No. 100 sievetraceon No. 140 sieve10 % maxthrough No. 325 sieve55 % max325 mesh on No. 200 sievetraceon No. 325 sieve10 % maxthrough No. 325 sieve90 % minAThese are standardASTM sieve sizes select
42、ed from Table12ofSpecificationE11. Sieve tests are conducted in accordance with the latest edition ofTest MethodB214.F106 123requirements of this specification, shall be furnished upon request of the purchaser, provided the request is made at the time of costquotation and at the time of order placem
43、ent.13. Packaging and Marking13.1 PackagingThe brazing filler metal shall be packaged in such a way that it will arrive at its destination clean andundamaged.13.2 MarkingAll packages of brazing filler metal shall be marked with:13.2.1 AWS specification numbers and classifications,13.2.2 Sellers name
44、 and trade designation,13.2.3 Size or part description in the case of preforms.13.2.4 Net weight or scale count in the case of preforms, and13.2.5 Lot, control or heat number.14. Keywords14.1 braze alloys; electron devices; melting test for cleanness and spatterAPPENDIX(Nonmandatory Information)X1.
45、GUIDE TO AWS CLASSIFICATION OF VACUUM GRADE FILLER METALSFOR ELECTRON DEVICE APPLICATIONSX1.1 GeneralX1.1.1 This guide is appended to this specification as a source of information; it is not mandatory and does not form amandatory part of this specification. It has been prepared as an aid to users of
46、 vacuum grade brazing filler metals to help themdetermine which classification of filler metal is best for a particular application.X1.1.2 This specification is intended to provide both the supplier and the user of brazing filler metals with a means of productioncontrol and a basis of acceptance thr
47、ough mutually acceptable standard requirements.X1.1.3 Brazing filler metals are metals that are added when making a braze. They have melting points below those of the metalsbeing brazed and above 840F (450C) with properties suitable for making joints by capillary attraction between closely fittedsur
48、faces.X1.1.4 All classifications of filler metals in this specification are considered to be spatter-free.X1.2 Method of ClassificationX1.2.1 The classification method for brazing filler metals is based on chemical composition rather than on mechanical propertyrequirements. The mechanical properties
49、 of a brazed joint depend, in part, on the base materials and filler metal used. Therefore,a classification method based on mechanical properties would be misleading since it would only apply to the specific combinationof base material and filler metal that generated the data. If a user of brazing filler metal desires to determine the mechanicalproperties of a given base metal, filler metal, and joint design combination, tests should be conducted using either Test MethodF19 or the latest edition of AWS Me
