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/AMS4785JAEROSPACEMATERIAL SPECIFICATIONAMS4785 REV. JIssued 1968-11Cancelled 2007-03Revised 2
5、015-12Superseding AMS4785HGold-Palladium-Nickel Alloy, Brazing Filler Metal, High Temperature30Au 34Pd 36Ni2075 to 2130 F (1135 to 1166 C) Solidus-Liquidus Range(Composition similar to UNS P00300)RATIONALEAMS4785J incorporates the industry standard requirements of AWS A5.8 and is a Five Year Review
6、and update of this specification.1. SCOPE1.1 FormThis specification covers a gold-palladium-nickel alloy in the form of wire, rod, sheet, strip, foil, pig, powder, shot, chips, preforms, and a viscous mixture (paste) of the powder in a suitable binder.1.2 ApplicationThis filler metal has been used t
7、ypically for joining corrosion and heat-resistant steels and alloys where corrosion and oxidation-resistant joints with good strength at elevated temperatures are required, but usage is not limited to such applications. 1.3 ClassificationFiller metal supplied to this specification is classified as f
8、ollows:Class 1 Standard composition (AWS A5.8M/A5.8 BAu-5)Class 2 Supplementary composition control1.3.1 Where no class is specified, Class 1 shall apply.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
9、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 document has been specified, the last published issue of that document shall apply.SAE INTERNATIONAL
10、 AMS4785J Page 2 of 62.1 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, Copper and Copper Alloy Sheet, Strip, and PlateAMS2224 Tolerances,
11、 Copper and Copper Alloy Wire2.2 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 Sieve Analysis of Granular Metal Powders2.3 AWS PublicationsAvailable from American Welding Society,
12、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 REQUIREMENTS3.1 CompositionProducts shall meet the requirements of AWS A5.8 BAu-5 and the following:Table 1 - Compo
13、sitionElement min maxGold 29.50 30.50Palladium 33.50 34.50Nickel 35.50 36.50Other Elements, total (3.1.1) - 0.153.1.1 Determination not required for routine acceptance.3.1.2 For Class 2, copper shall be limited to 0.06% maximum, carbon to 0.005% maximum, and the following elements shall be limited t
14、o 0.002% maximum each; aluminum, cadmium, lead, magnesium, phosphorus, silicon, titanium, and zinc. The total of these elements shall not exceed 0.05% maximum.3.2 ConditionThe product shall be supplied in the as fabricated condition.3.2.1 PasteUnless otherwise specified by the purchaser, shall consi
15、st of 84 to 90% by weight powder in a suitable binder and shall not contain flux.3.2.1.1 Paste shall have a shelf life of not less than 6 months from date of manufacture; not more than thorough mixing shall be required to restore paste for use during that time.3.2.1.2 Paste without flux shall leave
16、no adherent residue when heated in a protective atmosphere to a temperature higher than 1000 F (538 C).SAE INTERNATIONAL AMS4785J Page 3 of 63.3 QualityThe product, as received by purchaser, shall be uniform in color, quality, and condition and free from foreign materials and from imperfections detr
17、imental to its working qualities. 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.3.4 Sizes and TolerancesThe product shall be s
18、upplied in the following standard sizes and to the tolerances shown:3.4.1 Wire and Rod3.4.1.1 Nominal DiametersShall be as shown in Table 2Table 2 - Standard diameter sizesInch Millimeters0.005 0.130.007 0.180.010 0.250.015 0.380.025 0.640.031 0.790.040 1.020.047 1.190.062 1.570.094 2.390.125 3.180.
19、175 4.440.188 4.780.225 5.720.250 6.353.4.1.2 Diameter Tolerances for Wire and RodWhen not specified by AWS A5.8, AMS2224 as applicable to refractory alloys.3.4.2 Sheet, Strip, and Foil3.4.2.1 Nominal ThicknessesShall be as shown in Table 3.Table 3 - Standard thicknessesInch Millimeters0.001 0.0250.
20、0015 0.0380.002 0.050.003 0.080.004 0.100.005 0.130.006 0.150.008 0.200.010 0.250.014 0.360.020 0.510.030 0.76SAE INTERNATIONAL AMS4785J Page 4 of 63.4.2.2 TolerancesIn accordance with AWS A5.8 except that no roll shall weigh more than 75 pounds (34 kg).3.4.3 Powder3.4.3.1 Mesh Designations60, 100,
21、140, 200, and 325.3.4.3.2 Powder shall be supplied in accordance with the limits on particle size distribution shown in Table 4, unless some other distribution is specified. Tests shall be in accordance with ASTM B214.3.4.3.2.1 When a mesh designation is not specified, 140F mesh shall be supplied.Ta
22、ble 4 - 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. 100
23、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% maxim
24、um325 On a No. 200 sieve - 0.5% maximumOn a No. 325 sieve - 10% maximumThrough a No. 325 sieve - 90% minimum4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe producer of the product shall supply all samples for producers tests and shall be responsible for the performance of allrequ
25、ired tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsAll technical requirements, other than shelf life of paste (3.2.1.1), are accepta
26、nce tests and shall be performed on each lot.SAE INTERNATIONAL AMS4785J Page 5 of 64.2.2 Periodic TestsShelf life of paste (3.2.1.1) is a periodic test and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser.4.3 Sampling and TestingShall b
27、e in accordance with the following:4.3.1 CompositionOne sample shall be taken from each furnace charge.4.3.2 Properties Except Shelf Life of PasteOne sample from each lot.4.3.3 A lot shall be all product, other than powder or paste, which has been tested and found to conform to the composition requi
28、rements of AWS A5.8 and 3.1.1 when applicable, in the same temper and size, and presented for producers inspection 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 this specification, and presented for pr
29、oducers 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 producers inspection at one time.4.4 ReportsThe producer of the product shall furnish with each shipment a report sh
30、owing the results of tests to determine conformance to the composition requirements and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, lot number or numbers, AMS4785J, form, size, and quantity.4.5 Resampling and RetestingNo
31、t applicable.5. PREPARATION FOR DELIVERY5.1 Identification5.1.1 Shall be as agreed upon by purchaser and producer.5.1.2 Each exterior container or package shall be permanently and legibly marked with not less than AMS4785J, lot number, form, manufacturers identification, nominal sizes, and weight.5.
32、1.2.1 Each container and package of paste shall also be marked with 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
33、Packages of filler metal 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 filler metal to ensure carrier acceptance and safe delivery.SAE INTERNATIONAL AMS478
34、5J Page 6 of 66. ACKNOWLEDGMENTA producer shall mention this specification number and its revision letter in 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
35、.8. NOTES:8.1 Revision IndicatorA 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 comple
36、te revision of the document, including technical revisions. Change bars 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 2075 F (1135 C) and an approximate liquidus temperature of 2130
37、F (1166 C).8.3 Accepted industry standards for the wet chemical analysis of alloys containing gold with nickel and/or palladium have not been established.8.4 Terms used in AMS are clarified in ARP1917.8.5 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dime
38、nsions 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.8.6 Purchase documents should not specify not less than the following:AMS4785JClassForm and size of filler metal desiredQuantity of filler metal.PREPARED BY AMS COMMITTEE “F”
