SAE AMS 3411E-2016 Flux Silver Brazing High Temperature.pdf

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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 there

2、from, 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 2016 SAE International All rights reserved. No part of this p

3、ublication 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: +1 724-776-497

4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS3411E AEROSPACE MATERIAL SPECIFICATION AMS3411 REV. E Issued 1958-08 Reaffirme

5、d 2010-11 Revised 2016-06 Superseding AMS3411D Flux, Silver Brazing High Temperature RATIONALE AMS3411E revises 3.2.7 to specify braze fillers for flow testing that do not contain Cd and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a silver braz

6、ing flux in the form of paste. 1.2 Application This flux has been used typically for silver brazing nonferrous metals, excluding aluminum, magnesium, and zinc alloys, and ferrous metals including austenitic steels, at temperatures in the range 1100 to 1800 F (593 to 982 C), but usage is not limited

7、to such applications. Flux may also be used for critical applications involving long heating cycles for high temperature brazing or for uneven heating cycles such as quick induction heating applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes descr

8、ibed or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take

9、necessary precautionary measures to ensure the health and safety of all personnel involved. 2. APPLICABLE DOCUMENTS The 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 subsequen

10、t 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. SAE INTERNATIONAL AMS3411E Page 2 of 5 2.1 SAE Publications Available from SA

11、E 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. AMS4763 Silver Alloy, Brazing Filler Metal 56Ag - 22Cu - 17Zn - 5.0Sn 1145 to 1205 F (618 to 652 C) Solidus-Liquidus Range AMS4788 Silver Alloy

12、 Brazing Filler Metal 50Ag - 28Zn - 20Cu - 2.0Ni 1220 to 1305 F (660 to 707 C) Solidus-Liquidus Range AMS5510 Steel, Corrosion and Heat-Resistant, Sheet, Strip and Plate 18Cr - 10.5Ni - 0.40Ti (SAE 30321) Solution Heat Treated 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor

13、Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E11 Woven Wire Test Sieve Cloth and Test Sieves 2.3 U.S. Government Publications Copies of these documents are available online at http:/quicksearch.dla.mil. FED-STD-313 Material Safety Data, Transportation

14、 Date and Disposal Data for Hazardous Materials Furnished to Government Activities 3. TECHNICAL REQUIREMENTS 3.1 Material The flux shall be a blended mixture of uniform consistency and shall be an acid fluoride base containing 0.5 to 1.5% powdered metallic boron and not more than 35% water by weight

15、. It shall not separate in the container to an extent that it cannot be restored to uniform consistency by stirring. 3.2 Properties The flux shall conform to the following requirements: 3.2.1 The flux, diluted with water as required, shall have acceptable fusibility and acceptable application and fl

16、uxing characteristics, and shall produce satisfactory brazed joints, of any type on copper alloys, nickel alloys, all types of steel including corrosion resistant alloys and tungsten and chromium carbides, when used in conjunction with silver brazing filler metal. 3.2.2 During heating to 1650 F (899

17、 C), flux shall fuse at 1100 F (593 C) or lower; on cooling from 1650 F (899 C), flux shall remain in the liquid state until temperature drops to 1150 F (621 C) or lower. 3.2.3 Flux, placed on a U.S. Standard 30-mesh (600 m) sieve conforming to ASTM E11 and worked lightly with a brush, shall pass co

18、mpletely through the sieve. If the flux has partially agglomerated in the container, the flux may, before conducting the test, be warmed over a water bath until it has returned to its normal consistency. 3.2.4 Flux shall not produce, during use, a flame or smoke of sufficient intensity to obscure th

19、e work; however, the dark opaque nature of the flux is a distinctive feature when it initially fuses or melts. 3.2.5 Flux shall be soluble in water at 175 F (79 C) or lower after being subjected to normal brazing operations. 3.2.6 Flux shall have a shelf life of not less than six months; not more th

20、an thorough mixing shall be required to restore flux for use during that time. SAE INTERNATIONAL AMS3411E Page 3 of 5 3.2.7 When applied to AMS5510 corrosion-resistant steel, using AMS4763 or AMS4788 filler metal and heated in air to 1350 to 1400 F (732 to 760 C), flux shall cause braze filler metal

21、 to flow with no evidence of balling or dewetting. 3.3 Quality Flux, as received by purchaser, shall be uniformly blended, free from contaminants and from foreign materials detrimental to the usage of the flux. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of flux shal

22、l 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 perform any confirmatory testing deemed necessary to ensure that the flux conforms to the specified requirements. 4.2 Classification of Tests 4.2.1

23、 Acceptance Tests All technical requirements, except shelf life (3.2.6), are acceptance tests and shall be performed on each lot. 4.2.2 Periodic Tests Shelf life (3.2.6) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purcha

24、ser. 4.3 Sampling and Testing At least one randomly selected sample of flux shall be randomly selected from each lot. A lot shall be all flux in an identifiable quantity produced in a single run from the same batches of raw materials and presented for vendors inspection at one time. 4.4 Reports The

25、vendor of flux shall furnish with each shipment a report stating that the flux conforms to all technical requirements. This report shall include the purchase order number, lot number, AMS3411E, date of manufacture, identification and quantity. 4.4.1 A material safety data sheet in accordance with FE

26、D-STD-313, or equivalent, shall be supplied to each purchaser with the first shipment of flux for production use. Each request for modification of flux formulation shall be accompanied by a revised data sheet for the proposed formulation. 4.5 Resampling and Retesting If any sample used in the above

27、tests fails to meet the specified requirements, disposition of the flux may be based on the results of testing three additional samples for each original nonconforming sample. Failure of any retest sample to meet the specified requirements shall be cause for rejection of the flux represented. Result

28、s of all tests shall be reported. SAE INTERNATIONAL AMS3411E Page 4 of 5 5. PREPARATION FOR DELIVERY 5.1 Identification 5.1.1 Flux shall be assigned a name unique to this product, a code consisting of letters and/or numbers, or other identification traceable to a specific set of raw materials, ingre

29、dients, manufacturing processes, procedures and sequences, and methods of inspection. If necessary to make any changes in the raw materials, ingredients, manufacturing processes, procedures or sequences, or methods of inspection, the identifying name or code shall also be changed. 5.1.2 Each package

30、 of flux shall permanently and legibly marked with not less than the following information: FLUX, SILVER BRAZING, HIGH TEMPERATURE AMS3411E PURCHASE ORDER NUMBER MANUFACTURERS NAME MANUFACTURERS DESIGNATION (see 5.1.1) LOT NUMBER DATE OF MANUFACTURE DIRECTIONS FOR MIXING AND APPLICATION WEIGHT OF CO

31、NTENTS 5.2 Packaging 5.2.1 A lot of flux may be packaged in small quantities and delivered under the basic lot acceptance provided lot identification is maintained. 5.2.2 Containers of flux shall be packaged to ensure that the flux, during shipment and storage, will be protected against exposure to

32、moisture, weather, or any other normal hazard. 5.2.3 Packages of flux shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the flux to ensure carrier acceptance and s

33、afe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Flux not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NO

34、TES 8.1 Revision Indicator A change bar (l) located 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 re

35、vision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. SAE INTERNATIONAL AMS3411E Page 5 of 5 8.2 Terms used in AMS are clarified in ARP1917. 8.3 Dimensions and properties in inch/pound u

36、nits 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. 8.4 Procurement documents should specify not less than the following: AMS3411E Type and size of containers desired (see 5.2.1) Quantity of flux desired. 8.5 Flux meeting the requirements of this specification has been classified under Federal Supply Classification (FSC) 3439. PREPARED BY AMS COMMITTEE “B”