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 feedbackon this Technical Report, please visithttp:/standards.sae.org/AMS5339GAEROSPACEMATERIAL SPECIFICATIONAMS5339 REV. GIssued 1969-11Reaffirmed 2012-04Revised 2017-03Superse
5、ding AMS5339FSteel, Maraging, Investment Castings17Ni - 10Co - 4.6Mo - 0.30Ti - 0.06AlVacuum MeltedHomogenized, Overaged, and Solution Heat Treated(Composition similar to UNS J93010)RATIONALEAMS5339G results from a Five-Year Review and update of this specification that revises radiographic acceptanc
6、e (3.7.4.1) and reports (4.5).1. SCOPE1.1 Form This specification covers an alloy steel in the form of investment castings.1.2 Application These castings have been used typically for heat treated parts of intricate design requiring ultra-high strength up to 600 F (315 C), but usage is not limited to
7、 such applications.2. APPLICABLE DOCUMENTS The 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 specified. W
8、hen 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 Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or
9、+1 724-776-4970 (outside USA), www.sae.org.AMS2175 Castings, Classification and Inspection ofAMS2248 Chemical Analysis Check Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging, and Other Highly-Alloyed Steels, and Iron Alloys AMS2360 Room Temperature Tensile Properties of CastingsSAE I
10、NTERNATIONAL AMS5339G Page 2 of 11AMS2694 In-Process Welding of CastingsAMS2750 PyrometryAMS2804 Identification CastingsARP1917 Clarification of Terms Used in Aerospace Metals Specifications2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohock
11、en, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM A370 Mechanical Testing of Steel ProductsASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb HardnessASTM
12、 E353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron AlloysASTM E1417 Liquid Penetrant TestingASTM E1444 Magnetic Particle TestingASTM E1742 Radiographic Examination3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight
13、shown in Table 1, determined by wet chemical methods in accordance with ASTM E353, by spectrochemical methods, or by other analytical methods acceptable to purchaser (see 8.3.1 and 8.3.2).Table 1 - CompositionElement Min MaxCarbonManganeseSiliconPhosphorusSulfurNickelCobaltMolybdenumTitaniumAluminum
14、-16.009.504.400.150.020.030.100.100.0100.01017.5011.004.800.450.103.1.1 Producer may test for any element not otherwise listed in Table 1 and include this analysis in the report (see 4.5). Limits of acceptability may be specified by purchaser (see 8.3.3).3.1.2 Check AnalysisComposition variations sh
15、all meet the applicable requirements of AMS2248.3.2 Melting Practice Castings and specimens shall be poured at casting producers facility either from a melt (see 8.3.4) of a master heat or directly from a master heat (see 3.4.2 and 8.3.5).SAE INTERNATIONAL AMS5339G Page 3 of 113.2.1 Revert (gates, s
16、prues, 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 castings. 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 togeth
17、er and poured into castings using a procedure authorized by purchaser (see 8.3.6).3.2.3 If melts are modified by replenishment (see 8.3.7), producer shall have a written procedure acceptable to purchaser that defines the controls, test, and traceability criteria for both castings and separately-cast
18、 specimens. Control factors of 4.4.2.2 shall apply.3.3 Condition Castings shall be delivered in the homogenized, overaged, and solution heat treated condition (see 3.5).3.4 Test Specimens Specimens shall be separately-cast, integrally-cast (see 8.3.8), or machined from a casting, and shall conform t
19、o 3.2.3.4.1 If specimens are separately-cast, producer 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 evaluation of chemical and tensile specimens.3.4.2.1 If replenishments are made at remelt as in 3.2.3, t
20、he frequency of sampling and testing used by the producer 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 integrally-cast specimens (4.3.3.2) or specimens machined-from-casting (4.3.3.3).3.4.3 Chemical Ana
21、lysis SpecimensShall be of any convenient size and shape.3.4.4 Tensile SpecimensShall be of standard proportions in accordance with ASTM A370 with 0.250 inch (6.35 mm) diameter at the reduced parallel gage section. 3.4.4.1 Separately-cast and integrally-cast specimens may be either cast to size or c
22、ast oversize and subsequently machined to 0.250 inch (6.35 mm) diameter. 3.4.4.2 When integrally-cast specimens and specimens machined-from-casting are specified, specimen size and location shall be as agreed upon by purchaser and producer (see 8.3.9 and 8.5).3.4.5 Hardness Specimens for Response to
23、 Heat TreatmentMay be a representative specimen or a casting.3.5 Heat Treatment To produce the condition in castings for delivery, heat treat as specified in 3.5.1 to conform to hardness of 3.6.2.1. Pyrometry shall be in accordance with AMS2750. SAE INTERNATIONAL AMS5339G Page 4 of 113.5.1 Productio
24、n Castings and Specimens 3.5.1.1 Homogenization 3.5.1.1.1 Maximum Section Thickness up to 1 Inch (25 mm), ExclusiveHeat to 1800 F 25 qF (982 C 14 qC), hold at heat for not less than 4 hours, and cool to room temperature at a rate equivalent to an air cool or faster. 3.5.1.1.2 Maximum Section Thickne
25、ss 1 to 2 Inches (25 to 51 mm), InclusiveHeat to 2100 F 25 qF (1149 C 14 qC), hold at heat for not less than 4 hours, and cool to room temperature at a rate equivalent to an air cool or faster. 3.5.1.1.3 Maximum Section Thickness Over 2 Inches (51 mm)As agreed upon by purchaser and producer.3.5.1.2
26、Overaging Heat to 1100 F 25 qF (593 C 14 qC), hold at heat for not less than 4 hours, and cool to room temperature at a rate equivalent to an air cool or faster. 3.5.1.3 SolutionHeat to 1500 F 25 qF (816 C 14 qC), hold at heat for 1 hour per inch (25 mm) of section thickness but in no case less than
27、 1 hour, and cool to room temperature at a rate equivalent to an air cool or faster. 3.5.2 Response to Heat TreatmentCastings or specimens for testing after maraging shall be heat treated as in 3.5.1 and the following:3.5.2.1 MarageHeat to 900 F 25 qF (482 C 14 qC), hold at heat for not less than 3
28、hours, and cool to room temperature at a rate equivalent to an air cool or faster.3.5.3 Tensile specimens used for master heat qualification may be heat treated separately from castings.3.6 PropertiesConformance shall be based upon testing of separately-cast specimens unless purchaser specifies inte
29、grally-cast specimens or specimens machined-from-casting. 3.6.1 Room Temperature Tensile PropertiesShall be as specified in Table 2, Table 3, or Table 4, determined in accordance with ASTM A370, after heat treatment in accordance with 3.5.1 and 3.5.2. Properties other than those listed may be define
30、d as specified in AMS2360.3.6.1.1 Room Temperature Tensile Properties of Separately-Cast SpecimensShall be as shown in Table 2.SAE INTERNATIONAL AMS5339G Page 5 of 11Table 2 - Minimum room temperature tensile properties of separately-cast specimensProperty ValueTensile Strength Yield Strength at 0.2
31、% OffsetElongation in 4DReduction in Area240 ksi (1655 MPa)220 ksi (1517 MPa)5%20%3.6.1.2 Room Temperature Tensile Properties of Integrally-Cast Specimens or Specimens Machined-from-CastingShall be as shown in Tables 3 or 4. If designated location is not defined, tensile properties specified for are
32、as other than designated apply.Table 3 - Minimum room temperature tensile properties, integrally-cast specimens or specimens machined-from-casting designated areasProperty ValueTensile Strength Yield Strength at 0.2% OffsetElongation in 4DReduction in Area240 ksi (1655 MPa)220 ksi (1517 MPa)5%20%Tab
33、le 4 - Minimum room temperature tensile properties, integrally-cast specimens or specimens machined-from-casting areas other than designatedProperty ValueTensile Strength Yield Strength at 0.2% OffsetElongation in 4DReduction in Area210 ksi (1488 MPa)180 ksi (1241 MPa)4%10%3.6.2 HardnessShall be as
34、follows, determined in accordance with ASTM A370:3.6.2.1 Production castings in the homogenized, overaged, and solution heat-treated condition of 3.5.1 shall have hardness not higher than 36 HRC, or equivalent (see 8.2).3.7 Quality 3.7.1 Castings, as received by purchaser, shall be uniform in qualit
35、y and condition, sound, and free from foreign materials and from imperfections detrimental 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 that would obscure defects.3.7.2 Castings shall be
36、 produced under radiographic control. This control shall consist of radiographic examination 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 spec
37、ified by purchaser, or as necessary to ensure continued maintenance of internal quality.3.7.2.1 Radiographic inspection shall be conducted in accordance with ASTM E1742 or other process method specified by purchaser.SAE INTERNATIONAL AMS5339G Page 6 of 113.7.3 When specified, additional nondestructi
38、ve testing shall be performed as follows:3.7.3.1 Fluorescent penetrant inspection in accordance with ASTM E1417 or other process method specified by purchaser.3.7.3.2 Magnetic particle inspection in accordance with ASTM E1444 or other process method specified by purchaser.3.7.4 Acceptance standards
39、for radiographic, magnetic particle, fluorescent penetrant, visual, and other inspection methods shall be as agreed upon by purchaser and producer (see 8.3.9). AMS2175 may be used to specify acceptance standards (casting grade) and frequency of inspection (casting class).3.7.4.1 When acceptance stan
40、dards are not specified, Grade C of AMS2175 shall apply and radiographic indications of gas holes, sand spots, and inclusions shall be cause for rejection when closer to the edge than twice their maximum dimension.3.7.5 Castings shall not be peened, plugged, impregnated, or welded unless authorized
41、by purchaser.3.7.5.1 When authorized by purchaser, welding in accordance with AMS2694 or other welding program acceptable to purchaser may be used.4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of castings shall supply all samples for producers tests and shall be resp
42、onsible 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 conform to specified requirements.4.2 Classification of Tests 4.2.1 Acceptance TestsComposition (3.1), tensile properties (3.
43、6.1), hardness (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 (3.7.3) is a periodic test and shall be performed at a frequency selected by producer, unless frequency of testing is sp
44、ecified by purchaser. 4.2.3 Preproduction TestsAll technical requirements are preproduction tests and shall be performed on specimens or sample castings (4.3), when a change in control factors occurs (4.4.2.2), and when purchaser deems confirmatory testing to be required.4.3 Sampling and Testing The
45、 minimum testing performed by producer 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 of shall be acceptable to purchaser.4.3.2 One preproduction castin
46、g in accordance with 4.4 shall be tested to the requirements of the casting drawing and to all technical requirements.4.3.2.1 Dimensional inspection sample quantity shall be as specified by purchaser.SAE INTERNATIONAL AMS5339G Page 7 of 114.3.3 Tensile tests shall be conducted to determine conforman
47、ce with 3.6.1. Sampling and test frequency are dependent upon the type and origin of specimen specified by purchaser (see 3.6) or selected by producer(see 4.3.3.4). When 3.4.2.1 applies, test frequency shall be acceptable to purchaser.4.3.3.1 For separately-cast specimens in the homogenized, overage
48、d, solution heat treated, and maraged condition of 3.5.2, one specimen from each master heat shall be tested for conformance to 3.6.1. 4.3.3.2 For integrally-cast specimens in the homogenized, overaged, solution heat treated, and maraged condition of 3.5.2, at least two specimens from each lot (see
49、8.3.10) shall be randomly selected and tested for conformance to 3.64.3.3.3 For specimens machined-from-casting, one casting shall be randomly selected from each lot and tested in the homogenized, overaged, solution heat treated, and maraged condition of 3.5.2 at locations shown on the engineering drawing for conformance to 3.6.4.3.3.3.1 When size and location of specimens are not show
