1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2015 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4762BAEROSPACEMATERIAL SPECIFICATIONAMS4762 REV. BIssued 1992-04Reaffirmed 2009-06Revised
5、2015-12Superseding AMS4762ASilver Alloy, Brazing Filler Metal40Ag 30Cu 30Zn1245 to 1340 F (674 to 727 C) Solidus-Liquidus Range(Composition similar to UNS P07402)RATIONALEAMS4762B revises Composition (3.1) to remove an obsolete referee analysis method, Condition (3.2), Classification of Tests (4.2)
6、and Sampling and Testing (4.3), and is a Five Year Review and update of this specification.1. SCOPE1.1 FormThis specification covers a silver alloy in the form of wire, rod, sheet, strip, foil, pig, powder, shot, and chips, and a viscous mixture (paste) of powder in a suitable binder.1.2 Application
7、This material has been used typically for joining ferrous metals and alloys, requiring good joint strength up to 600 F (316 C) for short-time service or up to 400 F (204 C) for long-time service, and for joining nonferrous metals except those having a base of titanium, aluminum or magnesium, but usa
8、ge is not limited to such applications.2. APPLICABLE DOCUMENTSThe issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document is
9、sue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside U
10、SA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AMS2222 Tolerances, Copper and Copper Alloy Sheet, Strip, and PlateAMS2224 Tolerances, Copper and Copper Alloy WireSAE INTERNATIONAL AMS4762B Page 2 of 72.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Bo
11、x C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B214 Sieve Analysis of Granular Metal Powders3. TECHNICAL REQUIREMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1. Methods for analysis shall be by spectrochemical methods or other analytica
12、l methods acceptable to purchaser.Table 1 - CompositionElement min maxSilver 39.0 41.0Copper 29.0 31.0Zinc 28.0 32.0Other Elements, total (3.1.1) - 0.153.1.1 Determination not required for routine acceptance.3.1.2 The requirements of 3.1 apply to paste after removal of the binder. 3.2 ConditionAs fa
13、bricated unless otherwise specified.3.2.1 PastePaste not containing flux (3.2.1.1) shall be supplied unless paste containing flux (3.2.1.2) is specified.3.2.1.1 Paste Without FluxShall consist of 84 to 90% by weight powder in a suitable binder, unless otherwise specified by purchaser.3.2.1.2 Paste C
14、ontaining FluxShall consist of 55 to 80% by weight powder in a suitable binder and flux combination, unless otherwise specified by purchaser.3.3 PropertiesFiller metal shall conform to the following requirements:3.3.1 ColorShall be yellow.3.3.2 FlatnessWhen unrolled, strip and foil shall lie flat wi
15、th no undue tendency to recoil.SAE INTERNATIONAL AMS4762B Page 3 of 73.3.3 Paste3.3.3.1 Paste shall have a shelf life of not less than six months from date of manufacture; not more than thorough mixing shall be required to restore paste for use during that time.3.3.3.2 Paste without flux shall leave
16、 no adherent residue when heated in a protective atmosphere to 1000 F (538 C) or higher.3.4 QualityThe product, as received by purchaser, shall be uniform in color, quality, condition, and free from foreign materials and imperfections detrimental to usage of the filler metal. Wire, rod, sheet, strip
17、, and foil shall be clean, sound, bright, and freefrom slivers, splitting, ragged edges, damaged ends, and other injurious imperfections. Pig, powder, shot, and chips shall have a metallic luster.3.5 Sizes and TolerancesThe product shall be supplied in the following standard sizes and to the toleran
18、ces shown in Tables 2, 3, and 4:3.5.1 Wire and Rod3.5.1.1 Nominal DiametersTable 2 - Standard diameter sizesInch Millimeters0.005 0.062 0.13 1.570.007 0.094 0.18 2.390.010 0.125 0.25 3.180.015 0.175 0.38 4.440.025 0.188 0.64 4.780.031 0.225 0.79 5.720.040 0.250 1.02 6.350.047 1.193.5.1.2 Diameter To
19、lerances for Drawn Wire and RodAMS2224 as applicable to refractory alloys.3.5.1.3 Diameter Tolerance for Rolled or Extruded Wire and RodTable 3A - Diameter tolerances, inch/pound unitsNominal Diameter or DistanceBetween Parallel SidesInchTolerance, InchPlus and MinusRoundsTolerance, InchPlus and Min
20、usSquares0.031 to 0.062, incl 0.005 0.008Over 0.062 to 0.125, incl 0.006 0.009Over 0.125 to 0.188, incl 0.007 0.009Over 0.188 to 0.250, incl 0.008 0.010SAE INTERNATIONAL AMS4762B Page 4 of 7Table 3B - Diameter tolerances, SI unitsNominal Diameter or DistanceBetween Parallel SidesMillimetersTolerance
21、, MillimeterPlus and MinusRoundsTolerance, MillimeterPlus and MinusSquares0.79 to 1.57, incl 0.13 0.20Over 1.57 to 3.18, incl 0.15 0.23Over 3.18 to 4.78, incl 0.18 0.23Over 4.78 to 6.35, incl 0.20 0.253.5.2 Sheet, Strip, and Foil3.5.2.1 Nominal ThicknessesTable 4 - Standard thicknessesInch Millimete
22、r0.001 0.006 0.025 0.150.0015 0.008 0.038 0.200.002 0.010 0.05 0.250.003 0.014 0.08 0.360.004 0.020 0.10 0.510.005 0.030 0.13 0.763.5.2.2 Tolerances3.5.2.2.1 ThicknessNominal thicknesses under 0.002 inch (0.05 mm) shall have a tolerance of 0.0002 inch (5 m); nominal thicknesses 0.002 inch (0.05 mm)
23、and over shall have tolerances conforming to AMS2222 as applicable to refractory alloys.3.5.2.2.2 Width of Individual RollsNominal widths under 6 inches (152 mm) shall vary not more than 0.010 inch (0.25 mm) from the width ordered. Nominal widths 6 inches (152 mm) and over shall vary not more than 0
24、.015 inch (0.38 mm) from the width ordered.3.5.2.2.3 Length in Individual RollShall not be limited, except that no roll shall weigh more than 75 pounds (34 kg).3.5.3 Powder3.5.3.1 Mesh Designations60, 100, 140, 200, and 325.3.5.3.2 Powder shall be supplied in accordance with the limits on particle s
25、ize distribution shown in Table 5 unless some other distribution is specified. Tests shall be in accordance with ASTM B214.SAE INTERNATIONAL AMS4762B Page 5 of 7Table 5 - Particle size distributionMesh Designation U.S. Standard Sieve60 Through a No. 40 sieve - 100%Through a No. 60 sieve - 95% minimu
26、mThrough a No. 325 sieve - 10% maximum100 Through a No. 60 sieve - 100%Through a No. 100 sieve - 95% minimumThrough a No. 325 sieve - 15% maximum140C On a No. 100 sieve - 0.5% maximumOn a No. 140 sieve - 10% maximumThrough a No. 325 sieve - 20% maximum140F On a No. 100 sieve - 0.5% maximumOn a No. 1
27、40 sieve - 10% maximumThrough a No. 325 sieve - 55% maximum200 On a No. 140 sieve - 0.5% maximumOn a No. 200 sieve - 10% maximumThrough a No. 325 sieve - 65% maximum325 On a No. 200 sieve - 0.5% maximumOn a No. 325 sieve - 10% maximumThrough a No. 325 sieve - 90% minimum3.5.3.2.1 When mesh designati
28、on is not specified, 140F mesh shall be supplied.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of the product shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perf
29、orm any confirmatory testing deemed necessary to ensure that the product conforms to the specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsAll technical requirements, other than properties (3.3) are acceptance tests and shall be performed on each lot.4.2.2 Periodic TestsPropert
30、ies (3.3) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser.4.3 Sampling and TestingShall be in accordance with the following:4.3.1 CompositionFor all product except powder, one sample from each lot; for powder, one
31、sample from each furnace charge.4.3.2 Other Technical RequirementsAs agreed upon by purchaser and vendor.SAE INTERNATIONAL AMS4762B Page 6 of 74.3.3 A lot shall be all product, other than powder and paste, produced from a single furnace charge (or melt) which has been tested and found to conform to
32、the requirements of Table 1.4.3.4 A lot of powder shall be a uniform blend of powder produced from one or more furnace charges, each meeting the requirements of 3.1, and presented for vendors inspection at one time.4.3.5 A lot of paste shall be that paste produced from a single lot of powder combine
33、d with binder from the same manufacturing batch and presented for vendors inspection at one time.4.4 ReportsThe vendor of the product shall furnish with each shipment a report showing the results of tests to determine conformance to the composition requirements and stating that the product conforms
34、to all other technical requirements. This report shall include the purchase order number, lot number or numbers, AMS4762B, form, size, and quantity.4.5 Resampling and RetestingNot applicable.5. PREPARATION FOR DELIVERY5.1 Identification5.1.1 The product shall be identified as agreed upon by purchase
35、r and vendor.5.1.2 Each exterior container or package shall be permanently and legibly marked with not less than the following informationSILVER ALLOY BRAZING FILLER METALAMS4762BLOT NUMBER _MANUFACTURERS IDENTIFICATION _NOMINAL DIMENSIONS _WEIGHT _5.1.2.1 Each container and package of paste shall a
36、lso be marked with the date of manufacture.5.2 Packaging5.2.1 The product shall be suitably wrapped, sealed, and boxed or otherwise packaged for protection against injury and contamination during shipment and under normal dry storage conditions.5.2.2 Packages of filler metal shall be prepared for sh
37、ipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the filler metal to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA vendor shall mention this specification number and its
38、 revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSFiller metal not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.SAE INTERNATIONAL AMS4762B Page 7 of 78. NOTES8.1 Revision IndicatorA change bar (l) loc
39、ated in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical rev
40、isions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.8.2 This filler metal has an approximate solidus temperature of 1245 F (674 C) and an approximate liquidus temperature of 1340 F (727 C).8.3 Terms used in AMS are clarified in ARP1
41、917.8.4 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information.8.5 Procurement documents should specify not less than the following:AMS4762BForm and size of filler metal desiredQuantity of filler metal desiredSize of containers desired.PREPARED BY AMS COMMITTEE “D“
