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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication m
3、ay 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 (outside U
4、SA) 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/AMS4776H AEROSPACE MATERIAL SPECIFICATION AMS4776 REV. H Issued 1956-07 Reaffirmed 2000-08 Re
5、vised 2010-10Superseding AMS4776G Nickel Alloy, Brazing Filler Metal 73Ni - 4.5Si - 14Cr - 3.1B - 4.5Fe (Low Carbon) 1790 to 1970 F (977 to 1077 C) Solidus-Liquidus Range (Composition similar to UNS N99610) RATIONALE AMS4776H revises permissible testing methods (3.3.1.2) and results from a Five Year
6、 Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a nickel alloy in the form of wire, rod, strip, foil, and powder and a viscous mixture (paste) of the powder in a suitable binder. 1.2 Application This filler metal has been used typically for joining corrosion and
7、 heat-resistant steels and alloys requiring corrosion and oxidation resistant joints with good strength at elevated temperatures, but usage is not limited to such applications. Also may be used as a corrosion and oxidation resistant hard coating. 2. APPLICABLE DOCUMENTS The issue of the following do
8、cuments 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 revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding docume
9、nt has been specified, the last published issue of that document shall apply. SAE AMS4776H Page 2 of 7 2.1 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 214 Sieve Analysis of Granul
10、ar Metal Powders ASTM D 638 Tensile Properties of Plastics ASTM E 18 Rockwell Hardness of Metallic Materials ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percen
11、tages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 354, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon Silicon Phosphorus Sulfur Chromium Boron Iron Cobalt (3.1.1) Titanium A
12、luminum Selenium (3.1.1) Zirconium Nickel - 4.00 - - 13.00 2.75 4.00 - - - - - remainder0.06 5.00 0.02 0.02 15.00 3.50 5.00 0.10 0.05 0.05 0.005 (50 ppm) 0.05 3.1.1 Determination not required for routine acceptance. 3.2 Condition The product shall be supplied in the following condition: 3.2.1 Wire a
13、nd Strip Powder bonded in a suitable plastic. 3.2.2 Rod As cast, with fins and projections removed. 3.2.3 Foil and Powder As fabricated. SAE AMS4776H Page 3 of 7 3.2.4 Paste Shall consist of 84 to 90% by weight powder in a suitable binder and, unless otherwise ordered, shall not contain flux. 3.3 Pr
14、operties Filler metal shall conform to the following requirements: 3.3.1 Wire and Strip 3.3.1.1 Burn-Off of Plastic The plastic used for bonding powder to form wire and strip shall burn off, leaving no adherent residue, when the product is heated to a temperature not higher than 1850 F (1010 C). 3.3
15、.1.2 Tensile Strength Shall be not lower than 360 psi (2.48 MPa), determined in accordance with ASTM D 638, Speed B. 3.3.1.3 Metallic Content The ratio of volume of powder to volume of plastic binder shall be the largest possible consistent with the requirements of 3.3.1.1 and 3.3.1.2. 3.3.2 Rod, Fo
16、il, and Powder When specified, properties shall be as agreed upon by purchaser and vendor. 3.3.3 Paste 3.3.3.1 Paste shall have a shelf life of not less than six months; not more than thorough mixing shall be required to restore paste for use during that time. 3.3.3.2 Paste, without flux, shall leav
17、e no adherent residue when heated in a protective atmosphere to a temperature higher than 1000 F (538 C). 3.3.4 When used as a hard coating, alloy shall melt quickly and shall flow freely under neutral oxyacetylene flame, without bubbling or boiling, to produce an adherent deposit free from porosity
18、 due to blow-holes, gas cavities, or slag inclusions. 3.3.4.1 Alloy, deposited as in 3.3.4, shall have hardness not lower than 40 HRC, or equivalent (See 8.3), determined in accordance with ASTM E 18. 3.4 Quality The product, as received by purchaser, shall be uniform in color, quality, and conditio
19、n and free from foreign materials and from imperfections detrimental to its working qualities. Rod and powder shall have a metallic luster. Wire, strip, and foil shall be clean, sound, smooth, and free from ragged edges, splitting, damaged ends, and other imperfections detrimental to usage of the pr
20、oduct. SAE AMS4776H Page 4 of 7 3.5 Sizes and Tolerances The product shall be supplied in the following standard sizes and to the following tolerances: 3.5.1 Wire 3.5.1.1 Nominal Diameters Shall be as shown in Table 2. TABLE 2 - STANDARD DIAMETER SIZES Inch Millimeters 0.031 0.062 0.125 0.188 0.79 1
21、.57 3.18 4.78 3.5.1.2 Diameter Tolerance Shall be 0.004 inch (0.10 mm). 3.5.2 Rod 3.5.2.1 Nominal Diameters Shall be as ordered. 3.5.2.2 Diameter Tolerances Shall be as shown in Table 3. TABLE 3 - DIAMETER TOLERANCES DiameterInch Diameter Millimeters Tolerance, %of Diameter 0.031 0.062 0.125 0.188 0
22、.79 1.57 3.18 4.78 20 15 10 10 3.5.2.3 Concentricity When long lengths are supplied as welded composites of cast lengths, the diameters of the adjacent sections shall be concentric within 0.031 inch (0.79 mm). 3.5.3 Strip and Foil When specified, tolerances shall be as agreed upon by purchaser and v
23、endor. SAE AMS4776H Page 5 of 7 3.5.4 Powder 3.5.4.1 Mesh Designations Shall be 60, 100, 140, 200, and 325. 3.5.4.2 Powder shall be supplied in accordance with the limits on particle size distribution shown in Table 4, unless another distribution is specified. Tests shall be in accordance with ASTM
24、B 214. TABLE 4 - PARTICLE SIZE DISTRIBUTION Mesh Designation U.S. Standard Sieve 60 100 140C 140F 200 325 Through a No. 40 sieve - 100 % Through a No. 60 sieve - 95 % min Through a No. 325 sieve - 10 % max Through a No. 60 sieve - 100 % Through a No. 100 sieve - 95 % min Through a No. 325 sieve - 15
25、 % max On a No. 100 sieve - 0.5 % max On a No. 140 sieve - 10 % max Through a No. 325 sieve - 20 % max On a No. 100 sieve - 0.5 % max On a No. 140 sieve - 10 % max Through a No. 325 sieve - 55 % max On a No. 140 sieve - 0.5 % max On a No. 200 sieve - 10 % max Through a No. 325 sieve - 65 % max On a
26、No. 200 sieve - 0.5 % max On a No. 325 sieve - 10 % max Through a No. 325 sieve - 90 % min 3.5.4.2.1 When a 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
27、 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 requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests All technical r
28、equirements, other than shelf life of paste (3.3.3.1), are acceptance tests and shall be performed on each heat or lot as applicable. SAE AMS4776H Page 6 of 7 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 the vendor unless fre
29、quency 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 except that powder produced from consecutive furnace charges and collected together, without teardown of the atomizing
30、 equipment, shall constitute a batch, from which one sample shall be taken. 4.3.2 Properties Except Shelf Life of Paste One sample from each lot. 4.3.2.1 A lot shall be all product, other than powder or paste, which has been tested and found to conform to Table 1, in the same temper and size, and pr
31、esented for vendors inspection at one time. 4.3.2.2 A lot of powder shall be a uniform blend of powder produced from one or more furnace charges, each meeting the requirements of Table 1, as modified by 4.3.1, and presented for vendors inspection at one time. 4.3.2.3 A lot of paste shall be that pas
32、te 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 shipment a report showing the results of tests on each lot or batch to determine conformanc
33、e 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, AMS4776H, form, size, and quantity. 4.5 Resampling and Retesting Not applicable. 5. PREPARATION FOR DELIVERY 5.1 Id
34、entification 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 the following information: Nickel alloy, brazing filler metal AMS4776H Lot number Manufacturers identification Nominal dimensions We
35、ight SAE AMS4776H Page 7 of 7 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, and boxed or otherwise packaged for protection against injury and contamination during shipment and under no
36、rmal 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 pertaining to the handling, packaging, and transportation of the filler metal to ensure carrier acceptance and saf
37、e 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 metal not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.
38、 8. NOTES 8.1 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 revision of the
39、 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 1790 F (977 C) and an approximate liquidus temperature of 1970 F (1077 C). 8.3 Ha
40、rdness conversion tables for metals are presented in ASTM E 140. 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; 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. 8.6 Purchase documents should specify not less than the following: AMS4776H Form and size of filler metal desired Quantity of filler metal desired. PREPARED BY AMS COMMITTEE “F“
