1、Gold-Nickel Alloy, Brazing Filler Metal, High Temperature82Au - 18Ni1740 F (949 C) Solidus-Liquidus TemperatureP008201. SCOPE:1.1 Form: This specification covers a gold-nickel alloy in the form of wire, rod, sheet, strip, foil, pig, powder, shot, chips, preforms and a viscous mixture (paste) of the
2、powder in a suitable binder.1.2 Application: This filler metal has been used typically for joining corrosion and heat resistant steels and alloys where corrosion and oxidation resistant joints with good strength up to 1300 F (704 C), but usage is not limited to such application. This filler metal is
3、 normally used for brazing, without flux, using a protective atmosphere.1.3 Classifications: Filler metal supplied to this specification is classified as follows:Class 1 Standard compositionClass 2 Supplementary composition control2. APPLICABLE DOCUMENTS:The following publications form a part of thi
4、s 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.AEROSPACE MATERIAL SPECIFICATIONAMS 4787FIssued 1971-11Revised 2000-04Reaffirmed 2008-11Supersed
5、ing AMS 4787ESAE 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 ar
6、ising 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 2008 SAE International All rights reserved. No part of this pu
7、blication 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 (o
8、utside 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/AMS4787F Copyright SAE International Provided by IHS under license with SAENot for Res
9、aleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4787F- 2 -2.1 SAE Publications:Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 2222 Tolerances, Copper and Copper Alloy Sheet, Strip, and PlateMAM 2222 Tolerances, Metric, Copper and C
10、opper Alloy Sheet, Strip, and PlateAMS 2224 Tolerances, Copper and Copper Alloy WireMAM 2224 Tolerances, Metric, Copper and Copper Alloy Wire2.2 ASTM Publications:Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM B 214 Sieve Analysis of Granular Metal Powders3. TECHNI
11、CAL REQUIREMENTS: 3.1 Composition: Shall conform to the percentages by weight shown in Table 1, determined by spectrochemical methods or other analytical methods acceptable to purchaser (See 8.6).3.1.1 Determination not required for routine acceptance.3.1.2 For Class 2, copper shall be limited to 0.
12、06% maximum, carbon to 0.005% maximum, and the following elements shall be limited to 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 Condition: The product shall be supplied in the follo
13、wing condition:3.2.1 Wire: Clean and bright. Annealed, unless otherwise specified.3.2.2 Rod: As fabricated and cleaned.3.2.3 Sheet, Strip, and Foil: Cold rolled, hard.TABLE 1 - CompositionElement min maxGold 81.50 82.50Nickel 17.50 18.50Other Elements, total (3.1.1) - 0.15Copyright SAE International
14、 Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4787F- 3 -3.2.4 Pig, Powder, Shot, and Chips: As fabricated.3.2.5 Paste: Unless otherwise specified by the purchaser, shall consist of 84 to 90% by weight powde
15、r in a suitable binder and shall not contain flux.3.2.6 Preforms: As fabricated.3.3 Properties: Filler metal shall conform to the following requirements:3.3.1 Color: Shall be as follows:3.3.1.1 Wire, Rod, Sheet, Strip, and Pig: Gold to yellow-white.3.3.1.2 Powder, Shot, and Chips: Nickel gray.3.3.2
16、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 time.3.3.3.2 Paste wit
17、hout flux shall leave no adherent residue when heated in a protective atmosphere to a temperature higher than 1000 F (538 C).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 its
18、 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.Copyright SAE International Provided by IHS under license wi
19、th SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4787F- 4 -3.5 Sizes and Tolerances: The product shall be supplied in the following standard sizes and to the tolerances shown:3.5.1 Wire and Rod: 3.5.1.1 Nominal Diameters: Shall be as shown in
20、 Table 2.3.5.1.2 Diameter Tolerances for Drawn Wire and Rod: AMS 2224 or MAM 2224 as applicable to refractory alloys.3.5.1.3 Diameter Tolerances for Rolled or Extruded Wire and Rod: Shall be as shown in Table 3.TABLE 2 - Standard Diameter SizesInch Millimeters0.005 0.130.007 0.180.010 0.250.015 0.38
21、0.025 0.640.031 0.790.040 1.020.047 1.190.062 1.570.094 2.390.125 3.180.175 4.440.188 4.780.225 5.720.250 6.35TABLE 3A - Diameter Tolerances, Inch/Pound UnitsNominal Diameter or DistanceBetween Parallel SidesInchTolerances, InchPlus and MinusRoundsTolerances, InchPlus and MinusSquares0.031 to 0.062,
22、 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 0.010Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4787F
23、- 5 -3.5.2 Sheet, Strip, and Foil: 3.5.2.1 Nominal Thicknesses: Shall be as shown in Table 4.3.5.2.2 Tolerances: 3.5.2.2.1 Thickness: Nominal thicknesses under 0.002 inch (0.05 mm) shall have a tolerance of 0.0002 inch (5 m); nominal thicknesses 0.002 inch (0.05 mm) and over shall have tolerances co
24、nforming 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) from the width ordered. Nominal widths 6 inches (152 mm) and over shall vary not more than 0.015 inch (0.38 mm
25、) 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 TABLE 3B - Diameter Tolerances, SI UnitsNominal Diameter or DistanceBetween Parallel SidesMillimetersTolerances, MIllimeterPlus and MinusRoundsTolerances, MillimeterPlus and M
26、inusSquares0.79 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 Millimeters0.001 0.0250.0015 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 0.510.0
27、30 0.76Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4787F- 6 -75 pounds (34 kg).3.5.3 Powder: 3.5.3.1 Mesh Designations: 60, 100, 140, 200, and 325.3.5.3.2 Powder shall be suppli
28、ed 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 214.3.5.3.2.1 When a mesh designation is not specified, 140F mesh shall be supplied.4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibili
29、ty 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 that the product conforms to specified
30、 requirements.4.2 Classification of Tests: TABLE 5 - 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
31、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% maximum200 On a No. 140 sieve - 0.5% maximumOn a No. 200 sieve - 1
32、0% 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% minimumCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
33、,-AMS 4787F SAE AMS 4787F- 7 -4.2.1 Acceptance Tests: All technical requirements, other than 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 test and shall be performed at a frequency selected by
34、 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: One sample shall be taken from each furnace charge.4.3.2 Properties Except Shelf Life of Paste: One sample from each lot.4.3.3 A lot shall be all p
35、roduct, 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 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.
36、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 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 s
37、hipment a report showing 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, AMS 4787E, form, size, and quantity.4.5 Resamp
38、ling and Retesting: Not applicable.5. PREPARATION FOR DELIVERY: 5.1 Identification: 5.1.1 Shall be 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 AMS 4787E, lot number, form, manufacturers identification, nom
39、inal sizes, and weight.5.1.2.1 Each container and package of paste shall also be marked with the date of manufacture.5.2 Packaging: Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AMS 4787F SAE AMS 4
40、787F- 8 -5.2.1 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 accordance with commercial practice a
41、nd 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. ACKNOWLEDGMENT: A vendor shall mention this specification number and its revision letter in all quotations and when a
42、cknowledging purchase 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 The change bar ( l ) located in the left margin is for the convenience of the user in locating areas where technical re
43、visions, not editorial changes, have been made to the previous issue of this specification. An (R) symbol to the left of the document title indicates a complete revision of the specification.8.2 This filler metal is nominally of eutectic composition, having a liquidus and solidus temperature of appr
44、oximately 1740 F (949 C). Brazing temperatures are usually in the range 1800 to 1950 F (982 to 1066 C).8.3 Dimensions in inch/pound units and the Fahrenheit temperatures are primary; dimensions in SI units and the Celsius temperatures are shown as approximate equivalents of the primary units and are
45、 presented only for information.8.4 Procurement documents should specify not less than the following: AMS 4787EClassForm and size of filler metal desiredQuantity of filler metal desired.8.5 Similar Specifications: AWS A5.8, Class BAu-4, is listed for information only and shall not be construed as an
46、 acceptable alternate unless requirements of this AMS are met.8.6 Accepted industry standards for the wet chemical analysis of alloys containing gold with nickel have not been established.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “F”Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
