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/AMS4761BAEROSPACEMATERIAL SPECIFICATIONAMS4761 REV. BIssued 1992-04Reaffirmed 2009-06Revised
5、2015-12Superseding AMS4761ASilver Alloy, Brazing Filler Metal38Ag 32Cu 28Zn 2.0Sn1200 to 1330 F (649 to 721 C) Solidus-Liquidus Range(Composition similar to UNS P07380)RATIONALEAMS4761B incorporates the industry standard requirements of AWS A5.8 and is a Five Year Review and update of this specifica
6、tion. 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 ApplicationThis material has been used typically for joining ferrous metals and alloys, requirin
7、g 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 usage is not limited to such applications.2. APPLICABLE DOCUMENTSThe issue of the follo
8、wing 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 issue is specified. When the referenced document has been cancelled and no superseding
9、 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 USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AMS2222 Tolerances, Cop
10、per and Copper Alloy Sheet, Strip, and PlateAMS2224 Tolerances, Copper and Copper Alloy WireSAE INTERNATIONAL AMS4761B Page 2 of 62.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B214
11、Sieve Analysis of Granular Metal Powders2.3 AWS Publications Available from American Welding Society, 8669 NW 36 Street, #130, Miami, FL 33166-6672, Tel: 1-800-443-9353 or 305-443-9353, www.aws.org.AWS A5.8M/A5.8 Specification for Filler Metals for Brazing and Braze Welding3. TECHNICAL REQUIREMENTSP
12、roducts shall meet the requirements of AWS A5.8 BAg-34 and the following:3.1 ConditionAs fabricated unless otherwise specified. 3.1.1 PastePaste not containing flux (3.1.1.1) shall be supplied unless paste containing flux (3.1.1.2) is specified.3.1.1.1 Paste Not Containing FluxShall consist of 84 to
13、 90% by weight powder in a suitable binder, unless otherwise specified by purchaser.3.1.1.2 Paste Containing FluxShall consist of 55 to 80% by weight powder in a suitable binder and flux combination, unless otherwise specified by purchaser.3.1.1.3 Paste shall have a shelf life of not less than six m
14、onths from date of manufacture; not more than thorough mixing shall be required to restore paste for use during that time.3.1.1.4 Paste without flux shall leave no adherent residue when heated in a protective atmosphere to 1000 F (538 C) or higher.3.2 QualityThe product, as received by purchaser, sh
15、all be uniform in color, quality, condition, and free from foreign materials and imperfections detrimental to usage of the filler metal. Wire, rod, sheet, strip, and foil shall be clean, sound, bright, and free from slivers, splitting, ragged edges, damaged ends, and other injurious imperfections. P
16、ig, powder, shot, and chips shall have a metallic luster.3.3 Sizes and TolerancesThe product shall be supplied in the following standard sizes and tolerances:3.3.1 Wire and Rod3.3.1.1 Nominal DiametersSAE INTERNATIONAL AMS4761B Page 3 of 6Table 1 - Standard diameter sizesInch Millimeters0.005 0.062
17、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 1.193.3.1.2 Diameter Tolerances for Wire and RodWhen not specified by AWS A5.8, AMS2224 as applicable to refractory alloys.3.3.2 Sheet, Strip, and Foil3.3.2.1
18、Nominal ThicknessesTable 2 - Standard thicknessesInch Millimeter0.001 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 0.763.3.2.2 TolerancesIn accordance with AWS A5.8, except that no roll shall weigh more than 75 pounds (34 kg).
19、3.3.3 Powder3.3.3.1 Mesh Designations60, 100, 140, 200, and 325.3.3.3.2 Powder shall be supplied in accordance with the limits on particle size distribution shown in Table 3 unless some other distribution is specified. Tests shall be in accordance with ASTM B214.SAE INTERNATIONAL AMS4761B Page 4 of
20、6Table 3 - Particle size distributionMesh Designation U.S. Standard Sieve60 Through a No. 40 sieve - 100%Through a No. 60 sieve - 95% minimumThrough 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. 1
21、00 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. 140 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% ma
22、ximum325 On a No. 200 sieve - 0.5% maximumOn a No. 325 sieve - 10% maximumThrough a No. 325 sieve - 90% minimum3.3.3.2.1 When a mesh designation is not specified, 140F mesh shall be supplied.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of the product shall supply all sa
23、mples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to the specified requirements.4.2 Classification of Tests4.2.1 Acceptance Te
24、stsAll technical requirements, other than shelf life of paste (3.1.1.3) are acceptance tests and shall be performed on each lot.4.2.2 Periodic TestsShelf life of paste (3.1.1.3) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is specified b
25、y purchaser.4.3 Sampling and TestingShall be in accordance with the following:4.3.1 CompositionFor all products except powder, one sample from each lot; for powder, one sample from each furnace charge.4.3.2 Properties Except Shelf Life of PasteOne sample from each lot.SAE INTERNATIONAL AMS4761B Page
26、 5 of 64.3.3 Other Technical RequirementsAs agreed upon by purchaser and vendor.4.3.4 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 the composition requirements of AWS A5.8.4.3.5 A lot of powder
27、shall be a uniform blend of powder produced from one or more furnace charges, each meeting therequirements of this specification and presented for vendors inspection at one time.4.3.6 A lot of paste shall be that paste produced from a single lot of powder combined with binder from the same manufactu
28、ring 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 to all other technical requirements.
29、This report shall include the purchase order number, lot number or numbers, AMS4761B, 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 purchaser and vendor.5.1.2 Each exterior cont
30、ainer or package shall be permanently and legibly marked with not less than the following information:SILVER ALLOY BRAZING FILLER METALAMS4761BLOT NUMBER _MANUFACTURERS IDENTIFICATION _NOMINAL DIMENSIONS _WEIGHT _5.1.2.1 Each container and package of paste shall also be marked with the date of manuf
31、acture.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 shipment in accordance with commercial
32、 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 revision letter in all quotations a
33、nd 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 AMS4761B Page 6 of 68. NOTES8.1 Revision IndicatorA change bar (l) located in the left margin is for the c
34、onvenience 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 revisions. Change bars and (R) are not
35、used in original publications, nor in documents that contain editorial changes only.8.2 This filler metal has an approximate solidus temperature of 1200 F (649 C) and an approximate liquidus temperature of 1330 F (721 C).8.3 Terms used in AMS are clarified in ARP1917.8.4 Dimensions and properties in
36、 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:AMS4761BForm and size of filler metal desiredQuantity of filler metal desiredSize of containers desired.PREPARED BY AMS COMMITTEE “D“
