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 2017 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 feedback on thisTechnical Report, please visithttp:/standards.sae.org/AMS4290MAEROSPACEMATERIAL SPECIFICATIONAMS4290 REV. MIssued 1939-12Revised 2017-02Superseding AMS4290LAlumi
5、num Alloy, Die Castings9.5Si - 0.50Mg (360.0-F)As Cast(Composition similar to UNS A03600)RATIONALEAMS4290M revises Condition (3.2), Radiographic Standards (Table 2), Method and Frequency of Inspection (3.5.2), and is a Five-Year Review and update of this specification.1. SCOPE1.1 FormThis specificat
6、ion covers an aluminum alloy in the form of die castings.1.2 ApplicationThese castings have been used typically for components requiring moderate strength at room temperature, but usage is not limited to such applications.2. REFERENCES2.1 Applicable DocumentsThe issue of the following documents in e
7、ffect 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 document has been
8、specified, the last published issue of that document shall apply.2.1.1 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.AMS2175 Castings, Classification and Ins
9、pection ofAMS2694 In-Process Welding of CastingsAMS2804 Identification CastingsARP1917 Clarification of Terms Used in Aerospace Metals SpecificationsSAE INTERNATIONAL AMS4290M Page 2 of 62.1.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken
10、, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B660 Packaging/Packing of Aluminum and Magnesium ProductsASTM E29 Using Significant Digits in Test Data to Determine Conformance with SpecificationsASTM E34 Chemical Analysis of Aluminum and Aluminum-Base AlloysASTM E505 Reference Radiographs for
11、 Inspection of Aluminum and Magnesium Die CastingsASTM E607 Atomic Emission Spectrometric Analysis of Aluminum Alloys by the Point-to-Plane Technique, Nitrogen AtmosphereASTM E716 Sampling Aluminum and its Alloys for Spectrochemical AnalysisASTM E1251 Analysis of Aluminum and Aluminum Alloys by Atom
12、ic Emission SpectrometryASTM E1417/E1417M Liquid Penetrant TestingASTM E1742/E1742M Radiographic Examination2.1.3 ANSI PublicationsCopies of these documents are available online at http:/webstore.ansi.org/.ANSI H35.1/H35.1M Standard Alloy and Temper Designation System for Aluminum3. TECHNICAL REQUIR
13、EMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E34, by spectrochemical methods in accordance with ASTM E607 or ASTM E1251, or by other analytical methods acceptable to purchaser (see 3.4).Table 1 - Composit
14、ionElement Min MaxSilicon (3.1.1)Magnesium (3.1.1)IronCopperNickelZincManganeseTinOther Elements, totalAluminum9.00.40-remainder10.00.62.00.60.500.500.350.150.253.1.1 When low-pressure die casting is permitted by purchaser, silicon may be 11.0 to 13.0% in which case magnesium shall be not higher tha
15、n 0.10% (413.0 Alloy).3.1.2 Test results may be rounded in accordance with the “rounding off” method of ASTM E29.SAE INTERNATIONAL AMS4290M Page 3 of 63.2 ConditionAs cast (F temper) as defined in ANSI H35.1/H35.1M.3.3 CastingCastings shall be produced from metal conforming to 3.1, determined by ana
16、lysis of a specimen (3.4) cast after the last melt addition.3.4 Chemical Analysis SpecimensShall be cast after the last melt addition and shall be tested to qualify the melt lot as in 3.1. Spectrochemical sample shallbe prepared in accordance with ASTM E716.3.5 QualityCastings, as received by purcha
17、ser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the castings.3.5.1 Radiographic, liquid penetrant, and other quality standards shall be as agreed upon by purchaser and producer.When acceptance standards are not spe
18、cified for radiographic inspection, the requirements of Table 2 shall apply utilizing the reference radiographs of ASTM E505.Table 2 - Default radiographic acceptance standards using ASTM E505Category of DiscontinuityMaximum Acceptable Levelof Discontinuity1/8 inch (3.2 mm)Reference RadiographMaximu
19、m Acceptable Levelof Discontinuity5/8 inch (15.9 mm)Reference RadiographApplicable Casting Section Thickness up to 3/8 inch (9.5mm), inclusiveOver 3/8 inch (9.5 mm) to 1 inch (25.4 mm), inclusive (1)Category A (Porosity) #2 #2Category B (Cold Fill) #2 #3 per 1/8 inch (3.2 mm)Reference RadiographCate
20、gory C (Shrinkage) N/A #2Category D (Foreign Material) Not greater than reference radiograph Not greater than reference radiograph1 Standards for thicker casting sections shall be as agreed upon between purchaser and producer.3.5.2 Methods of inspection and frequency of inspection shall be as agreed
21、 upon by purchaser and producer. A “Casting Class” of AMS2175 may be selected to specify the method and frequency of inspection.3.5.3 Castings shall be produced under radiographic control. This control shall consist of 100% radiographic inspection of castings until process control factors (see 4.4.2
22、) have been established to ensure production of acceptable castings. Unless otherwise specified by purchaser, continued radiographic inspection of production castings shall be performed at a frequency determined by the producer to ensure continued maintenance of internal quality.3.5.3.1 Radiographic
23、 inspection shall be conducted in accordance with ASTM E1742/E1742M, unless otherwise specified by purchaser.SAE INTERNATIONAL AMS4290M Page 4 of 63.5.4 When specified by purchaser, castings shall be fluorescent penetrant tested using a method specified by purchaser, or, if not specified, a method i
24、n accordance with ASTM E1417/E1417M.3.5.5 Castings shall not be peened, plugged, impregnated, or welded unless authorized by purchaser.3.5.5.1 When authorized by purchaser, welding in accordance with AMS2694, or other welding program approved by purchaser, may be used.4. QUALITY ASSURANCE PROVISIONS
25、4.1 Responsibility for InspectionThe producer of castings shall supply all samples for producers 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 castings confo
26、rm to specified requirements.4.2 Classification of Tests4.2.1 Acceptance TestsAll technical requirements except radiographic inspection (3.5.3) are acceptance tests and shall be performed on each lot (see 4.2.2).4.2.2 Periodic TestsRadiographic inspection (3.5.3) following establishment of process c
27、ontrol (4.4.2) is a periodic test and shall be performed at a frequency determined by the producer to ensure continued maintenance of internal quality, unless frequency is specified by purchaser (see 3.5.2).4.2.3 Preproduction TestsAll technical requirements are preproduction tests and shall be perf
28、ormed prior to or on the first-article shipment of a casting to a purchaser, when a change in material and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required.4.3 Sampling and TestingShall be in accordance with the following:4.3.1 At least one
29、chemical analysis specimen from each melt for conformance to 3.1 unless another sampling frequency is agreed upon by purchaser and producer.4.3.2 One or more preproduction castings of each casting part number in accordance with 4.4.1.4.4 Approval4.4.1 Sample castings from new or reworked dies and th
30、e casting procedure shall be approved by purchaser before castings for production use are supplied, unless such approval be waived by purchaser.4.4.2 Producer shall establish, for production of sample castings of each part number, parameters for process control factors which will produce acceptable
31、castings and, when requested, sample castings and/or radiographic results; these shall constitute the approved casting procedure and shall be used for producing production castings. If necessary to make any change in parameters for process control factors, producer shall submit for reapproval a stat
32、ement of the proposed change in processing and, when requested, sample castings. Production castings incorporating the revised operations shall not be shipped prior to receipt of reapproval.SAE INTERNATIONAL AMS4290M Page 5 of 64.4.2.1 Control factors for producing castings include, but are not limi
33、ted to, the following:Type of furnaceFurnace atmosphereAlloy additions, fluxing, deoxidation, and gas removal proceduresLocation and number of gatesLocation and number of knockout pinsMold temperature and tolerancesInjection pressure and tolerancesMetal injection temperature; variation of r50 q F (r
34、28 q C) from the established limit is permissibleSolidification and cooling proceduresStraightening procedure, when applicableCleaning operationsMethods of inspectionRadiographic inspection sampling plan, if used.4.4.2.1.1 Any of the above process control factors for which parameters are considered
35、proprietary by the producer may be assigned a code designation. Each variation in such parameters shall be assigned a modified codedesignation.4.5 ReportsThe producer of castings shall furnish with each shipment a report showing the results of tests for composition of each melt and stating that the
36、castings conform to the other technical requirements. This report shall include the purchase order number, melt and lot number, AMS4290M, part number, and quantity.4.6 Resampling and RetestingIf any specimen used in the above tests fails to meet the specified requirements, disposition of the casting
37、s may be based on the results of testing two additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the castings represented. Results of all tests shall be reported.5. PREPARATION FOR DELIVERY5.
38、1 IdentificationShall be in accordance with AMS2804.5.1.1 Impregnated castings shall be marked “IMP“.5.2 PackagingCastings shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of
39、the castings to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA producer shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSCastings not conforming to this specification, or to modifications authorized
40、by purchaser, will be subject to rejection.SAE INTERNATIONAL AMS4290M Page 6 of 68. NOTES8.1 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 th
41、is 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 editorial changes only.8.2 Terms used in AMS are clarified in ARP1917 an
42、d as follows:8.2.1 MeltA single homogeneous batch of molten metal to which all melt additions and processing have been completed and from which castings are poured.8.2.2 Melt LotCastings poured from a single melt.8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are p
43、rimary; 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.8.4 Purchase documents should specify not less than the following:AMS4290MPart number or die number of castings desiredQuant
44、ity of castings desiredAcceptance standards for nondestructive inspection (see 3.5.1) plus method and frequency of inspection (see 3.5.2) when required.8.5 Similar SpecificationsAMS-QQ-A-591, Alloy 360.0 or 413.0 is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met.PREPARED BY AMS COMMITTEE “D”
