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    SAE AMS 4788B-2015 Silver Alloy Brazing Filler Metal 50Ag - 28Zn - 20Cu - 2 0Ni 1220 to 1305 (660 to 707 Solidus-Liquidus Range (UNS P07505).pdf

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    SAE AMS 4788B-2015 Silver Alloy Brazing Filler Metal 50Ag - 28Zn - 20Cu - 2 0Ni 1220 to 1305 (660 to 707 Solidus-Liquidus Range (UNS P07505).pdf

    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/AMS4788BAEROSPACEMATERIAL SPECIFICATIONAMS4788 REV. BIssued 1990-07Reaffirmed 2009-06Revised

    5、2015-12Superseding AMS4788ASilver Alloy Brazing Filler Metal50Ag - 28Zn - 20Cu - 2.0Ni1220 to 1305 F (660 to 707 C) Solidus-Liquidus Range(UNS P07505)RATIONALEAMS4788B incorporates the industry standard requirements of AWS A5.8 and is a Five Year review and update of this specification.1. SCOPE1.1 F

    6、ormThis specification covers a silver alloy in the form of wire, rod, sheet, strip, foil, pig, powder, shot, and chips, and a viscousmixture (paste) of powder in a suitable binder.1.2 ApplicationPrimarily for joining ferrous metals, particularly austenitic steels and alloys, where high joint strengt

    7、h up to 400 F (204 F) is required, and for joining nonferrous metals except those having a base of aluminum or magnesium.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 supp

    8、lier 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 document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE Internation

    9、al, 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, Copper and Copper Alloy Sheet, Strip, and PlateAMS2224 Tolerances, Copper and Copper Alloy WireSAE INTERNATIONAL AMS4788B Page 2 of 62.2

    10、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 Sieve Analysis of Granular Metal Powders2.3 AWS PublicationsAvailable from American Welding Society, 8669 NW 36 Street, #130, Miami, F

    11、L 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 REQUIREMENTS3.1 CompositionProducts shall meet the requirements of AWS A5.8 BAg-243.2 ConditionAs fabricated unless otherwise specified.3.2.1 PasteP

    12、aste 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 Not Containing FluxShall consist of 84 to 90% by weight powder in a suitable binder.3.2.1.2 Paste Containing FluxShall consist of 55 to 80% by weight powder in a suitable binder and

    13、 flux combination.3.3 Properties3.3.1 Paste 3.3.1.1 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.3.3.1.2 Paste without flux shall leave no adherent residue when heated in

    14、a protective atmosphere to 1000 F (538 C) or higher.3.4 QualityThe product, as received by purchaser, shall be uniform in color, quality, and condition and free from foreign materials and from imperfections detrimental to its working qualities. Wire, rod, sheet, strip, and foil shall be clean, sound

    15、, bright, and free from slivers, splitting, ragged edges, damaged ends, and other injurious imperfections. Pig, powder, shot, and chips shall have a metallic luster.SAE INTERNATIONAL AMS4788B Page 3 of 63.5 Sizes and TolerancesThe product shall be supplied in the following standard sizes and toleran

    16、ces:3.5.1 Wire and Rod3.5.1.1 Nominal DiametersTable 1 - 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 Tolerances for Wire and RodWhe

    17、n not specified by AWS A5.8, AMS2224 as applicable to refractory alloys.3.5.2 Sheet, Strip, and Foil3.5.2.1 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 0.7

    18、63.5.2.2 TolerancesIn accordance with AWS A5.8 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.SAE INTERNATIONAL AMS4788B Page 4 of 63.5.3.2 Powder shall be supplied in accordance with the limits on particle size distributio

    19、n shown in Table 3 unless some other distribution is specified. Tests shall be in accordance with ASTM B214.Table 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 N

    20、o. 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. 140 sieve - 10% maximumThrough a No. 325 sieve - 55% m

    21、aximum200 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 designation is not specified, 140F mesh shall be supplied.4. Q

    22、UALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of the product shall supply all samples for vendors tests and shall be responsible for performing all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that

    23、the product conforms to the requirements of this specification.4.2 Classification of Tests4.2.1 Acceptance TestsAll technical requirements, other than shelf life of paste (3.3.1.1), are acceptance tests and shall be performed on each lot.4.2.2 Periodic TestsShelf life of paste (3.3.1.1) is a periodi

    24、c test 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 sample from each furna

    25、ce charge.SAE INTERNATIONAL AMS4788B Page 5 of 64.3.2 Other Technical RequirementsAs agreed upon by purchaser and vendor.4.3.3 A lot shall be all product, other than powder or paste, which has been tested and found to conform to 3.1, in the same temper and size, and presented for vendors inspection

    26、at one time.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 combined with binder fr

    27、om 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 to the other tec

    28、hnical requirements. This report shall include the purchase order number, lot number or numbers, AMS4788B, 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

    29、.2 Each exterior container or package shall be permanently and legibly marked with not less than the following information:SILVER ALLOY BRAZING FILLER METALAMS4788BLOT NUMBER MANUFACTURERS IDENTIFICATION NOMINAL DIMENSIONS WEIGHT 5.1.2.1 Each container and package of paste shall also be marked with

    30、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 shipment in accordanc

    31、e 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 revision letter in

    32、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 AMS4788B Page 6 of 68. NOTES8.1 Revision IndicatorA change bar (l) located in the left mar

    33、gin 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 revisions. Change bars

    34、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 1220 F (660 C) and an approximate liquidus temperature of 1305 F (707 C).8.3 Dimensions and properties in inch/pound units and the Fahre

    35、nheit 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.8.4 For direct U.S. Military procurement, purchase documents should specify not less than the following:Title, number and date of this specificationForm and size of filler metal desiredQuantity of filler metal desiredSize of containers desiredLevel A packaging, if required (see 5.2.3).PREPARED BY AMS COMMITTEE “D“


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