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 2015 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/AMS4774G AEROSPACE MATERIAL SPECIFICATION AMS4774 REV. G Issued 1959-01 Reaffirme
5、d 2009-06 Revised 2015-12 Superseding AMS4774F Silver Alloy Brazing Filler Metal 63Ag 28.5Cu 6.0Sn 2.5Ni 1275 to 1475 F (691 to 802 C) Solidus-Liquidus Range UNS P07630 RATIONALE AMS4774G incorporates the industry standard requirements of AWS A5.8 and is a Five Year review and update of this specifi
6、cation. 1. SCOPE 1.1 Form This 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 This material has been used typically for joining ferrous metals, including aust
7、enitic steels and alloys, requiring moderate joint strength up to 700 F (371 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 aluminum, magnesium, or titanium, but usage is not limited to such applications. 1.2.1
8、The nickel content helps minimize crevice corrosion in corrosion resistant steels. 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 subsequent revisio
9、n 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 AMS4774G Page 2 of 6 2.1 SAE Publications Available from SAE Interna
10、tional, 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 Plate AMS2224 Tolerances, Copper and Copper Alloy Wire 2.2 ASTM Publications Available fro
11、m 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 Powders 2.3 AWS Publications Available from American Welding Society, 8669 NW 36 Street, #130, Miami, FL 33166-6672, Tel: 1-800-44
12、3-9353 or 305-443-9353, www.aws.org. AWS A5.8M/5.8 Specification for Filler Metals for Brazing and Braze Welding 3. TECHNICAL REQUIREMENTS 3.1 Composition Products shall meet the requirements of AWS A5.8 BAg-21 and the following: 3.2 Condition As fabricated unless otherwise specified. 3.2.1 Paste Pa
13、ste not containing flux (3.2.1.1) shall be supplied unless paste containing flux (3.2.1.1) is specified. 3.2.1.1 Paste Without Flux Shall consist of 84 to 90% by weight powder in a suitable binder unless otherwise specified by purchaser. 3.2.1.2 Paste Containing Flux Shall consist of 55 to 80% by we
14、ight powder in a suitable binder and flux combination unless otherwise specified by purchaser. 3.3 Properties 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. 3.3.2 Pas
15、te without flux shall leave no adherent residue when heated in a protective atmosphere to 1000 F (538 C) or higher. SAE INTERNATIONAL AMS4774G Page 3 of 6 3.4 Quality The product, as received by purchaser, shall be uniform in color, quality, and condition and free from foreign materials and from imp
16、erfections 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. Pig, powder, shot, and chips shall have a metallic luster. 3.5 Sizes and Tolerances T
17、he product shall be supplied in the following standard sizes and tolerances: 3.5.1 Wire and Rod 3.5.1.1 Nominal Diameters Table 1 - Standard diameter sizes Inch Millimeters 0.005 0.062 0.13 1.57 0.007 0.094 0.18 2.39 0.010 0.125 0.25 3.18 0.015 0.175 0.38 4.44 0.025 0.188 0.64 4.78 0.031 0.225 0.79
18、5.72 0.040 0.250 1.02 6.35 0.047 1.19 3.5.1.2 Diameter Tolerances for Wire and Rod When not specified in AWS A5.8, AMS2224 as applicable to refractory alloys. 3.5.2 Sheet, Strip, and Foil 3.5.2.1 Nominal Thicknesses Table 2 - Standard thicknesses Inch Millimeter 0.001 0.006 0.025 0.15 0.0015 0.008 0
19、.038 0.20 0.002 0.010 0.05 0.25 0.003 0.014 0.08 0.36 0.004 0.020 0.10 0.51 0.005 0.030 0.13 0.76 3.5.2.2 Tolerances of Sheet, Strip and Foil 3.5.2.2.1 Thickness In accordance with AWS A5.8 except that no roll shall weigh more than 75 pounds (34 kg). SAE INTERNATIONAL AMS4774G Page 4 of 6 3.5.3 Powd
20、er Sizes 3.5.3.1 Mesh Designations 60, 100, 140, 200, and 325. 3.5.3.2 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. Table 3 - Particle size distribution
21、Mesh Designation U.S. Standard Sieve 60 Through a No. 40 sieve - 100% Through a No. 60 sieve - 95% minimum Through a No. 325 sieve - 10% maximum 100 Through a No. 60 sieve - 100% Through a No. 100 sieve - 95% minimum Through a No. 325 sieve - 15% maximum 140C On a No. 100 sieve - 0.5% maximum On a N
22、o. 140 sieve - 10% maximum Through a No. 325 sieve - 20% maximum 140F On a No. 100 sieve - 0.5% maximum On a No. 140 sieve - 10% maximum Through a No. 325 sieve - 55% maximum 200 On a No. 140 sieve - 0.5% maximum On a No. 200 sieve - 10% maximum Through a No. 325 sieve - 65% maximum 325 On a No. 200
23、 sieve - 0.5% maximum On a No. 325 sieve - 10% maximum Through a No. 325 sieve - 90% minimum 3.5.3.2.1 When mesh designation is not specified, 140F mesh shall be supplied. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendors
24、 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 Tests 4.2.1 Acceptance Tests All technic
25、al requirements, except shelf life of paste (3.3.1), are acceptance tests and shall be performed on each lot. 4.2.2 Periodic Tests Shelf life of paste (3.3.1) is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. SAE IN
26、TERNATIONAL AMS4774G Page 5 of 6 4.3 Sampling and Testing Shall be in accordance with the following: 4.3.1 Composition For all product except powder, one sample from each lot; for powder, one sample from each furnace charge. 4.3.2 Other Technical Requirements As agreed upon by purchaser and vendor.
27、4.3.3 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 the composition of AWS A5.8. 4.3.4 A lot of powder shall be a uniform blend of powder produced from one or more furnace charges, each meeting t
28、he requirements of this specification, 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 from the same manufacturing batch and presented for vendors inspection at one time. 4.4 Reports The vendor of th
29、e 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. This report shall include the purchase order number, lot number or numbers, AMS4774G, f
30、orm, size, and quantity. 4.5 Resampling and Retesting Not applicable. 5. PREPARATION FOR DELIVERY 5.1 Identification 5.1.1 The product shall be identified as agreed upon by purchaser and vendor. 5.1.2 Each exterior container or package shall be permanently and legibly marked with not less than the f
31、ollowing information: SILVER ALLOY BRAZING FILLER METAL AMS4774G LOT NUMBER _ MANUFACTURERS IDENTIFICATION _ NOMINAL DIMENSIONS _ WEIGHT _ 5.1.2.1 Each container and package of paste shall also be marked with the date of manufacture. 5.2 Packaging 5.2.1 The product shall be suitably wrapped, sealed,
32、 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 practice and in compliance with applicable rules and regulations perta
33、ining to the handling, packaging, and transportation of the filler metal to ensure carrier acceptance and safe delivery. SAE INTERNATIONAL AMS4774G Page 6 of 6 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase
34、 orders. 7. REJECTIONS Filler metal not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 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 revisi
35、ons, 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 used in original publications, nor in documents that contain ed
36、itorial changes only. 8.2 This filler metal has an approximate solidus temperature of 1275 F (691 C) and an approximate liquidus temperature of 1475 F (802 C). 8.3 Terms used in AMS are clarified in ARP1917. 8.4 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primar
37、y; 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: AMS4774G Form and size of filler metal desired Quantity of filler metal desired Size of containers desired. PREPARED BY AMS COMMITTEE “D“
