1、AEROSPACE MATERIAL SPECIFICATIONAMS 4773FIssued 1959-01Revised 1999-04Superseding AMS 4773ESilver Alloy, Brazing Filler Metal60Ag - 30Cu - 10Sn1115 to 1325 F (602 to 718 C) Solidus-Liquidus RangeUNS P076001. SCOPE:1.1 Form: This specification covers a silver alloy in the form of wire, rod, sheet, st
2、rip, 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, particularly austenitic steels and alloys, requiring high joint strength up to 600 F (316 C) for short-time service
3、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. This filler metal is particularly suitable for brazing in hydrogen or inert atmosphere.2. APPLICABLE DOCUMENTS
4、: The following publications form a part of this specification to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order.2.1 SAE Publications: Available from SAE, 400 Com
5、monwealth Drive, Warrendale, PA 15096-0001.AMS 2222 Tolerances, Copper and Copper Alloy Sheet, Strip, and PlateMAM 2222 Tolerances, Metric, Copper and Copper Alloy Sheet, Strip, and PlateAMS 2224 Tolerances, Copper and Copper Alloy WireMAM 2224 Tolerances, Metric, Copper and Copper Alloy WireReaffir
6、med 2009-06 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 ari
7、sing therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2009 SAE International All rights reserved. No part of this pub
8、lication 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: 724-776-4970 (ou
9、tside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AMS4773F Copyright SAE International Provided by IHS under license with SAENot for Resa
10、leNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 2 -2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM B 214 Sieve Analysis of Granular Metal PowdersASTM E 56-90 Chemical Analysis of Silver Brazing A
11、lloys (Discontinued - See 8.6)3. TECHNICAL REQUIREMENTS: 3.1 Composition: Shall conform to the percentages by weight shown in Table 1. Methods for analysis may be spectrochemical or other methods acceptable to purchaser, but in case of dispute, the referee methods shall be ASTM E 56-90 for silver an
12、d copper (See 8.5 and 8.6).3.1.1 Determination not required for routine acceptance.3.1.2 The requirements of 3.1 apply to paste after removal of the binder.3.2 Condition: The product shall be supplied in the following condition:3.2.1 Wire: Bright and clean. Annealed temper, unless otherwise specifie
13、d.3.2.2 Rod: As-fabricated temper, and cleaned.3.2.3 Sheet, Strip, and Foil: Cold rolled, in hard temper (See 8.4).3.2.4 Pig, Powder, Shot, and Chips: As fabricated.3.2.5 Paste: Paste not containing flux (3.2.5.1) shall be supplied unless paste containing flux (3.2.5.2) is specified.TABLE 1 - Compos
14、itionElement min maxSilver 59.0 61.0Copper 29.0 31.0Tin 9.5 10.5Phosphorus - 0.025Other Elements, total (3.1.1) - 0.15Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 3 -3.2.5
15、.1 Paste Without Flux: Shall consist of 84 to 90% by weight powder in a suitable binder.3.2.5.2 Paste Containing Flux: Shall consist of 55 to 80% by weight powder in a suitable binder and flux combination.3.3 Properties: Filler metal shall conform to the following requirements:3.3.1 Color: Shall be
16、yellow-white.3.3.2 Flatness: When unrolled, strip and foil shall lie flat with no undue tendency to recoil.3.3.3 Paste: 3.3.3.1 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 tim
17、e.3.3.3.2 Paste without flux shall leave no adherent residue when heated in a protective atmosphere to 1000 F (538 C) or higher.3.4 Quality: The product, as received by purchaser, shall be uniform in color, quality, and condition and free from foreign materials and from imperfections detrimental to
18、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: The product shall be suppli
19、ed in the following standard sizes and to the tolerances shown:3.5.1 Wire and Rod: 3.5.1.1 Nominal Diameters: TABLE 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 1.0
20、2 6.350.047 1.19Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 4 -3.5.1.2 Diameter Tolerances for Drawn Wire and Rod: AMS 2224 or MAM 2224 as applicable to refractory alloys
21、.3.5.1.3 Diameter Tolerance for Rolled or Extruded Wire and Rod: 3.5.2 Sheet, Strip, and Foil: 3.5.2.1 Nominal Thicknesses: TABLE 3A - Diameter Tolerances, Inch/Pound UnitsNominal Diameter or DistanceBetween Parallel SidesInchTolerance, InchPlus and MinusRoundsTolerance, InchPlus and MinusSquares0.0
22、31 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 0.010TABLE 3B - Diameter Tolerances, SI UnitsNominal Diameter or DistanceBetween Parallel SidesMillimetersTolerance, MillimeterPlus and MinusRoundsTolerance, Millime
23、terPlus 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 0.25TABLE 4 - 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
24、0.510.005 0.030 0.13 0.76Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 5 -3.5.2.2 Tolerances: 3.5.2.2.1 Thickness: Nominal thicknesses under 0.002 inch (0.05 mm) shall have
25、 a tolerance of 0.0002 inch (5 m); nominal thicknesses 0.002 inch (0.05 mm) and over shall have tolerances conforming to AMS 2222 or MAM 2222 as applicable to refractory alloys.3.5.2.2.2 Width of Individual Rolls: Nominal widths under 6 inches (152 mm) shall vary not more than 0.010 inch (0.25 mm) f
26、rom the width ordered. Nominal widths 6 inches (152 mm) and over shall vary not more than 0.015 inch (0.38 mm) from the width ordered.3.5.2.2.3 Length in Individual Roll: Shall not be limited except that no roll shall weigh more than 75 pounds (34 kg).3.5.3 Powder Size: 3.5.3.1 Mesh Designations: 60
27、, 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 5 unless some other distribution is specified. Tests shall be in accordance with ASTM B 214.TABLE 5 - Particle Size DistributionMesh Designation U.S. Standard Sieve60
28、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. 100 sieve - 0.5% maximumOn a No. 140 sieve - 10% maximumThrough a No. 325 sie
29、ve - 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% maximum325 On a No. 200 sieve - 0.5% maximumOn a No. 325 sieve - 10% maximumTh
30、rough a No. 325 sieve - 90% minimumCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 6 -3.5.3.2.1 When mesh designation is not specified, 140F mesh shall be supplied.4. QUALITY
31、 ASSURANCE PROVISIONS: 4.1 Responsibility for Inspection: The 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 perform any confirmatory testing deemed necessary to ensure
32、 that the product conforms to the specified requirements.4.2 Classification of Tests: 4.2.1 Acceptance Tests: All technical requirements, except shelf life of paste (3.3.3.1), are acceptance tests and shall be performed on each lot.4.2.2 Periodic Tests: Shelf life of paste (3.3.3.1) is a periodic te
33、st and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser.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 furna
34、ce charge.4.3.2 Properties Except Shelf Life of Paste: One sample from each lot.4.3.3 Other Technical Requirements: As 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
35、 conform to the requirements of Table 1.4.3.5 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.4.3.6 A lot of paste shall be that paste produced from a single lot of po
36、wder combined with binder from the same manufacturing batch and presented for vendors inspection at one time.4.4 Reports: The 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 pro
37、duct conforms to all other technical requirements. This report shall include the purchase order number, lot number or numbers, AMS 4773F, form, size, and quantity.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license f
38、rom IHS-,-,-AMS 4773F SAE AMS 4773F- 7 -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
39、 less than the following information:SILVER ALLOY BRAZING FILLER METALAMS 4773FLOT 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 wrappe
40、d, 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 practice and in compliance with applicable rules and regulati
41、ons pertaining to the handling, packaging, and transportation of the filler metal to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENT: A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONS: Filler
42、metal not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4773F SAE AMS 4773F- 8 -8. NO
43、TES: 8.1 The 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 revision of the
44、document.8.2 This filler metal has an approximate solidus temperature of 1115 F (602 C) and an approximate liquidus temperature of 1325 F (718 C).8.3 Terms used in AMS are clarified in ARP1917.8.4 The hard temper is obtained by rolling with an 11 to 60% reduction, but this specification does not con
45、trol the degree of rolling or resultant hardness.8.5 A referee method for the determination of tin in silver brazing alloys has not been established. Tin may be determined by difference.8.6 ASTM E 56 has been discontinued. Copies of ASTM E 56-90 are also obtainable from UMI Infosource, 300 N, Zeeb R
46、oad, Ann Arbor, MI 48106-1346.8.7 Dimensions in inch/pound units and the Fahrenheit temperatures are primary; dimensions in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information.8.8 Procurement documents should spec
47、ify not less than the following:AMS 4773FForm and size of filler metal desiredQuantity of filler metal desiredSize of containers desired8.9 Similar Specifications: AWS A5.8, Class BAg-18, is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “D“Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
