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 andsuggestions.Copyright 2014 SAE InternationalAll rights reserved. No part of this public
3、ation 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 (outs
4、ide 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/AMS5388KAEROSPACE MATERIAL SPECIFICATIONAMS5388 REV. KIssued 1952-06Revised 2014-04Superseding
5、 AMS5388JNickel Alloy, Corrosion and Heat-Resistant, Investment Castings53.3Ni - 16.5Cr - 17Mo - 4.5W - 5.8Fe - 0.40V (CW-12MW)As-Cast(Composition similar to UNS N10002)RATIONALEAMS5388K corrects an error in the reports paragraph (4.5).1. SCOPE1.1 FormThis specification covers a corrosion and heat-r
6、esistant nickel alloy in the form of investment castings.1.2 ApplicationThese castings have been used typically for parts, such as nozzle guide vanes, requiring good corrosion resistance and strength up to 1500 F (816 C), and oxidation resistance up to 1800 F (982 C), but usage is not limited to suc
7、h applications (See 8.3).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 extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specifi
8、ed. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada)
9、 or 724-776-4970 (outside USA), www.sae.org.AMS2175 Castings, Classification and Inspection ofAMS2269 Chemical Check Analysis Limits, Nickel, Nickel Alloys, and Cobalt AlloysAMS2360 Room Temperature Tensile Properties of CastingsAMS2361 Elevated Temperature Tensile Properties of CastingsSAE INTERNAT
10、IONAL AMS5388K Page 2 of 9AMS2694 In-Process Welding of CastingsAMS2804 Identification, Castings2.2 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 E 8/E 8M Tension Testing of Metallic Ma
11、terialsASTM E 21 Elevated Temperature Tension Tests for Metallic MaterialsASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt AlloysASTM E 1417/E 1417M Liquid Penetrant TestingASTM E 1742/E 1742M Radiographic Examination3. TECHNICAL REQU
12、IREMENTS3.1 CompositionShall conform to the percentages 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 (See 8.2.1 and 8.2.2).TABLE 1 COMPOSITIONElement min maxCarbon - 0.
13、15Manganese - 1.00Silicon - 1.00Phosphorus - 0.03Sulfur - 0.03Chromium 15.50 17.50Molybdenum 16.00 18.00Tungsten 3.75 5.25Iron 4.50 7.00Vanadium 0.20 0.60Cobalt - 2.50Other Elements (3.1.1) - -Nickel Remainder3.1.1 Vendor may test for any element not otherwise listed in Table 1 and include this anal
14、ysis in the report of 4.5. Limits of acceptability may be specified by purchaser (See 8.2.3).3.1.2 Check AnalysisComposition variations shall meet the applicable requirements of AMS2269.3.2 Melting PracticeCastings and specimens shall be poured at casting vendors facility either from a melt (See 8.2
15、.4) of a master heat, or directly from a master heat (See 3.4.2 and 8.2.5).SAE INTERNATIONAL AMS5388K Page 3 of 93.2.1 Revert (gates, sprues, risers, and rejected castings) may be used only in the preparation of master heats; revert shall not be remelted directly without refining for pouring of cast
16、ings. Melting of revert creates a new master heat.3.2.2 Portions of two or more qualified master heats (See 3.4.2) may be melted together and poured into castings using a procedure authorized by purchaser (See 8.2.6).3.2.3 If melts (See 8.2.4) are modified by replenishment (See 8.2.7), vendor shall
17、have a written procedure acceptable to purchaser which defines the controls, test, and traceability criteria for both castings and separately-cast specimens. Control factors of 4.4.2.2 shall apply.3.3 ConditionCastings shall be delivered in the as-cast condition.3.4 Test SpecimensSpecimens shall be
18、either separately-cast, integrally-cast (See 8.2.8), or machined from a casting, and shall conform to 3.2.3.4.1 If specimens are separately-cast, vendor shall have a written procedure acceptable to purchaser. Control factors of 4.4.2.2 shall apply.3.4.2 Each master heat shall be qualified by evaluat
19、ion of chemical and tensile specimens.3.4.2.1 If replenishments are made at remelt as in 3.2.3, frequency of sampling and testing used by the vendor for qualification to 3.4.2 shall be acceptable to purchaser.3.4.2.2 Tensile tests of 3.4.2 are not required if these tests are conducted using integral
20、ly-cast specimens (4.3.3.2) or specimens machined-from-casting (4.3.3.3).3.4.3 Chemical Analysis SpecimensShall be of any convenient size and shape.3.4.4 Tensile SpecimensShall be of standard proportions in accordance with ASTM E 8/E 8M (See 8.4) with 0.250-inch (6.35-mm) diameter at the reduced par
21、allel gage section.3.4.4.1 Separately-cast and integrally-cast specimens may be either cast to size, and/or cast oversize and subsequently machined to 0.250-inch (6.35-mm) diameter.3.4.4.2 When integrally-cast specimens and/or specimens machined-from-casting are specified, specimen size and location
22、 shall be agreed upon by purchaser and vendor (See 8.2.9 and 8.6).3.5 Heat TreatmentNot applicable.3.6 PropertiesConformance shall be based upon testing of separately-cast specimens unless purchaser specifies integrally-cast specimens or specimens machined-from-casting. Properties for integrally-cas
23、t specimens and specimens machined-from-casting shall be as specified by purchaser (See 8.6).3.6.1 Room Temperature Tensile PropertiesTensile properties may be specified by purchaser in accordance with AMS2360.SAE INTERNATIONAL AMS5388K Page 4 of 93.6.2 Elevated Temperature Tensile Properties at 150
24、0 F (816 C)Shall be as shown in Table 2, determined on separately-cast specimens in accordance with ASTM E 21 on specimens heated to and tested at 1500 F 5 (816 C 3). Properties other than those listed in Table 2 may be defined as specified in AMS2361.TABLE 2 - MINIMUM ELEVATED TEMPERATURE TENSILE P
25、ROPERTIES OF SEPARATELY-CAST SPECIMENSProperty ValueTensile Strength 50 ksi (345 MPa)Elongation in 4D 10%3.6.3 HardnessNot applicable.3.7 Quality3.7.1 Castings, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimen
26、tal to usage of the castings. Castings shall be free of cracks, laps, hot tears, and cold shuts, and free of scale and other process induced surface contamination which would obscure defects.3.7.2 Castings shall be produced under radiographic control. This control shall consist of radiographic exami
27、nation of each casting part number until foundry manufacturing controls in accordance with 4.4.2 have been established. Additional radiography shall be conducted in accordance with the frequency of inspection specified by purchaser, or as necessary to ensure continued maintenance of internal quality
28、.3.7.2.1 Radiographic inspection shall be conducted in accordance with ASTM E 1742/E 1742M or other method specified by purchaser.3.7.3 When specified, castings shall be subjected to fluorescent penetrant inspection in accordance with ASTM E 1417/E 1417M or other method specified by purchaser.3.7.4
29、Acceptance standards for radiographic, fluorescent penetrant, visual, and other inspection methods shall be as agreed upon by purchaser and vendor (See 8.2.9). AMS2175 may be used to specify acceptance standards (casting grade) and frequency of inspection (casting class).3.7.4.1 When acceptance stan
30、dards are not specified, Grade C of AMS2175 as applicable to steel castings shall apply for each specified method of inspection.3.7.5 Castings shall not be peened, plugged, impregnated, or welded unless authorized by purchaser.3.7.5.1 When authorized by purchaser, welding in accordance with AMS2694
31、or other welding program acceptable to purchaser may be used.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for inspectionThe vendor of castings shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample an
32、d to perform any confirmatory testing deemed necessary to ensure that the castings conform to specified requirements.SAE INTERNATIONAL AMS5388K Page 5 of 94.2 Classification of Tests4.2.1 Acceptance TestsComposition (3.1), room temperature tensile properties if specified (3.6.1), elevated temperatur
33、e tensile properties (3.6.2),and the applicable requirements of quality (3.7) are acceptance tests and shall be performed as specified in 4.3.4.2.2 Periodic TestsRadiographic soundness (3.7.2) is a periodic test and shall be performed at a frequency selected by the vendor unless a frequency of testi
34、ng is specified by purchaser.4.2.3 Preproduction TestsAll technical requirements are preproduction tests and shall be performed on sample castings (4.3.2), when a change in control factors occurs (4.4.2.2), and when purchaser deems confirmatory testing to be required.4.3 Sampling and TestingThe mini
35、mum testing performed by vendor shall be in accordance with the following:4.3.1 One chemical analysis specimen or a casting from each master heat shall be tested for conformance with Table 1; if 3.4.2.1 applies, test frequency shall be acceptable to purchaser.4.3.2 One preproduction casting in accor
36、dance with 4.4 shall be tested to requirements of the casting drawing and to all technical requirements.4.3.2.1 Dimensional inspection sample quantity shall be as specified by purchaser.4.3.3 Tensile property tests shall be conducted to determine conformance with 3.6.2. Sampling and test frequency i
37、s dependent upon the type and origin of the specimen specified by purchaser (See 3.4.4 and 3.6) or selected by vendor (See 4.3.3.4). When 3.4.2.1 applies, specimen source and test frequency shall be acceptable to purchaser.4.3.3.1 For separately-cast specimens in the as-cast condition, one specimen
38、from each master heat shall be tested for conformance to 3.6.2.4.3.3.2 For integrally-cast specimens in the as-cast condition, two specimens shall be randomly selected from each lot (See 8.2.10) and tested for conformance with properties specified by purchaser (See 8.6).4.3.3.3 For specimens machine
39、d-from-casting, one casting shall be randomly selected from each lot and tested in the as-cast condition at each location shown on the engineering drawing for conformance with properties specified by purchaser (See 8.6).4.3.3.3.1 When size and location of specimens are not shown, two specimens shall
40、 be tested, one from the thickest section and one from the thinnest section. Once established under 4.4.2.2, test locations may be changed only as agreed upon by purchaser and vendor.4.3.3.4 When acceptable to purchaser, specimens machined-from-casting may be used in lieu of both separately-cast and
41、 integrally-cast specimens, and integrally-cast specimens may be used in lieu of separately-cast specimens. In each case, the resultant properties shall conform to the requirements of 3.6 or to alternative requirements specified by purchaser (See 8.6).4.3.3.4.1 When specimens are selected for test a
42、s in 4.3.3.4 from an origin other than that specified by purchaser, vendor shall include in the report of 4.5 a description of the source of the specimen that was tested.4.3.3.5 When casting size, section thickness, gating method, or other factors do not permit conformance with 4.3.3.2 or 4.3.3.3, s
43、ampling and testing shall be agreed upon by purchaser and vendor.SAE INTERNATIONAL AMS5388K Page 6 of 94.3.4 Castings shall be inspected in accordance with 3.7 to the methods, frequency, and acceptance standards specified by purchaser.4.4 Approval4.4.1 Sample casting(s) from new or reworked master p
44、atterns produced under the casting procedure of 4.4.2 shall be approved by purchaser before castings for production use are supplied, unless such approval be waived by purchaser.4.4.2 For each casting part number, vendor shall establish parameters for process control factors that will consistently p
45、roduce castings and test specimens meeting the requirements of the casting drawing and this specification. These parameters shall constitute the approved casting procedure and shall be used for production of subsequentcastings and test specimens. If necessary to make any change to these parameters,
46、vendor shall submit a statement of the proposed change for purchaser reapproval. When requested, vendor shall also submit test specimens, sample castings, or both to purchaser for reapproval.4.4.2.1 Production castings produced prior to receipt of purchasers approval shall be at vendors risk.4.4.2.2
47、 Control factors for producing castings and separately-cast specimens include, but are not limited to, the following factors. Suppliers procedures shall identify tolerances, ranges, and/or control limits, as applicable. Control factors for separately-cast specimens must generally represent, but need
48、 not be identical to, those factors used for castings (See 3.2.3 and 3.4.1):Composition of ceramic cores, if usedArrangement and number of patterns in the mold (including integrally-cast specimens, if applicable)Size, shape, and location of gates and risersMold refractory formulationGrain refinement
49、 methods, if applicableMold back-up material (weight, thickness, or number of dips)Type of furnace, atmosphere, and charge for meltingMold preheat and metal pouring temperaturesFluxing or deoxidation procedureReplenishment procedure, if applicableTime molten metal is in furnaceSolidification and cooling proceduresCleaning operations (mechanical and chemical)Welding procedure, if applicableStraighteningFinal inspection me
