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1、AEROSPACE MATERIAL SPECIFICATION AMS 5340D IssuedJAN 1964 RevisedMAR 1997 Superseding AMS 5340C (R) Steel, Corrosion Resistant, Investment Castings 14Cr - 4.25Ni - 2.25Mo - 0.25Cb - 3.25Cu Homogenization and Solution Heat Treated UNS J92240 1.SCOPE: 1.1Form: This specification covers a corrosion-res
2、istant steel in the form of investment castings. 1.2Application: These castings have been used typically for parts requiring corrosion resistance and strength up to 1000 F (538 C), but usage is not limited to such applications. 2.APPLICABLE DOCUMENTS: The following publications form a part of this s
3、pecification 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. 2.1SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. AMS 22
4、48Chemical Check Analysis Limits, Corrosion and Heat Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS 2360Room Temperature Tensile Properties of Castings AMS 2694Repair Welding of Aerospace Castings AMS 2804Identification, Castings Reaffirmed SEP 2007 RATION
5、ALE This document has been reaffirmed to comply with the SAE 5-year Review policy. 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 su
6、itability for any particular use, including any patent infringement arising 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. Co
7、pyright 2007 SAE International All rights reserved. No part of this publication 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
8、 ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:
9、48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D - 2 - 2.2ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. ASTM E 8Tension Testing of Metallic Materials ASTM E 8MTension Testing of Metallic Materials
10、 (Metric) ASTM E 18Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials ASTM E 353Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys ASTM E 1444Magnetic Particle Examination 2.3U.S. Government Publications: Available from DODS
11、SP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. MIL-H-6875Heat Treatment of Steels, Process for MIL-STD-453Inspection, Radiographic MIL-STD-2175Castings, Classification and Inspection of MIL-STD-6866Inspection, Liquid Penetrant QQ-P-35Passivation Treatme
12、nts for Corrosion-Resistant Steel 3.TECHNICAL REQUIREMENTS: 3.1Composition: Castings shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 353, by spectrochemical methods, or by other analytical methods acceptable to purchaser (See
13、8.2.1 and 8.2.2). TABLE 1 - Composition Element min max Carbon - 0.06 Manganese - 0.70 Silicon 0.50 1.00 Phosphorus - 0.020 Sulfur - 0.025 Chromium13.5014.25 Nickel 3.75 4.75 Columbium 0.15 0.35 Molybdenum 2.00 2.50 Copper 3.00 3.50 Tantalum - 0.05 Nitrogen - 0.05 Copyright SAE International Provide
14、d by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D - 3 - 3.1.1Vendor may test for any element not otherwise listed in Table 1 and include this analys
15、is in the report of 4.5. Limits of acceptability may be specified by purchaser (See 8.2.3). 3.1.2Check Analysis: Composition variations shall meet the requirements of AMS 2248. 3.2Melt Practice: Castings and specimens shall be poured at casting vendors facility either from a melt (See 8.2.4) of a ma
16、ster heat, or directly from a master heat (See 8.2.5). 3.2.1Revert (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 castings. 3.2.2Portions of two or more qualified master heats
17、 (See 3.4.2) may be melted together and poured into castings using a procedure authorized by purchaser (See 8.2.6). 3.2.3If modifications, such as alloy additions or replenishments, are made by the vendor at remelt, vendor shall have a written procedure acceptable to purchaser which defines the cont
18、rols, test, and traceability criteria for both castings and separately-cast specimens. Control factors of 4.4.2.2 shall apply. 3.3Condition: Castings and tensile specimens shall be delivered in the solution heat treated condition, except as specified in 3.3.1 and 3.3.2. 3.3.1When acceptable to purch
19、aser, castings and specimens shall be solution heat treated twice. 3.3.2When acceptable to purchaser, castings and specimens shall be homogenization heat treated prior to solution heat treatment. 3.4Test Specimens: Specimens shall be either separately-cast, integrally-cast (See 8.2.7), or machined f
20、rom a casting, and shall conform to 3.2. 3.4.1If specimens are separately-cast, vendor shall have a written procedure acceptable to purchaser. Control factors of 4.4.2.2 shall apply. 3.4.2Each master heat shall be qualified by evaluation of chemical and tensile specimens. 3.4.2.1If alloy additions o
21、r 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. 3.4.3Chemical Analysis Specimens: Shall be of any convenient size and shape. Copyright SAE International Provided by IHS under license wi
22、th SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D - 4 - 3.4.4Tensile Specimens: Shall be of standard proportions in accordance with ASTM E 8 or ASTM E 8M (See 8.3) with 0.25
23、0 inch (6.35 mm) diameter at the reduced parallel gage section. 3.4.4.1Separately-cast and integrally-cast specimens may be either cast to size, or cast oversize and subsequently machined to 0.250 inch (6.35 mm) diameter. 3.4.4.2When integrally-cast specimens and specimens machined from a casting ar
24、e specified, specimen size and location shall be agreed upon by purchaser and vendor (See 8.2.8 and 8.5). 3.5Heat Treatment: Castings and representative tensile specimens shall be heat treated in accordance with MIL-H-6875, except as specified in 3.5.1 and 3.5.2. 3.5.1Castings and Tensile Specimens:
25、 3.5.1.1Homogenization Heat Treatment: When acceptable to purchaser in accordance with 3.3.2, heat in a neutral or slightly reducing atmosphere to 2100 F 25 (1149 C 14), hold at heat for not less than 90 minutes, and cool as required to below 70 F (21 C). 3.5.1.2Solution Heat Treatment: Heat in a ne
26、utral or slightly reducing atmosphere to 1900 F 25 (1038 C 14), hold at heat for 1 hour per inch (25 mm) of section thickness but not less than 30 minutes, and cool as required to below 70 F (21 C). 3.5.2Response to Heat Treatment: After heat treatment in accordance with 3.5.1, tensile specimens sha
27、ll be heat treated as follows for subsequent testing to demonstrate response to heat treatment: 3.5.2.1Precipitation Heat Treatment: Heat to 1100 F 15 (593 C 8), hold at heat for not less than 4 hours, and cool in air. 3.5.3Tensile specimens used for master heat qualification may be heat treated sep
28、arately from castings. 3.6Properties: Conformance shall be based upon testing separately-cast specimens unless purchaser specifies integrally-cast specimens or specimens machined from a casting. 3.6.1Room Temperature Tensile Properties: Shall be as specified in Table 2 or Table 3, determined in acco
29、rdance with ASTM E 8 or ASTM E 8M (See 8.3), after heat treatment in accordance with 3.5.2. Properties other than those listed may be defined as specified in AMS 2360. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007
30、18:48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D - 5 - 3.6.1.1Separately-Cast Specimens: Shall be as shown in Table 2. 3.6.1.2Integrally-Cast and Machined-from-Casting Specimens: Shall be as shown in Table 3. 3.6.2Hardness: Shall be as follows,
31、 determined in accordance with ASTM E 18: 3.6.2.1Castings: Castings, heat treated to the condition of 3.5.1, shall have hardness not higher than 36 HRC. 3.6.2.2Castings and Representative Tensile Specimens: Castings and representative tensile specimens, heat treated to the condition of 3.5.2, shall
32、have hardness not lower than 30 HRC. 3.7Quality: 3.7.1Castings, as received by purchaser, shall be uniform in quality 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,
33、and free of scale and other process-induced surface contamination which would obscure defects. 3.7.1.1Unless otherwise specified, castings shall be sufficiently cleaned such that, after passivation by purchaser, the castings shall meet the corrosion test requirement of QQ-P-35. TABLE 2 - Minimum Roo
34、m Temperature Tensile Properties PropertyValue Tensile Strength150 ksi (1034 MPa) Yield Strength at 0.2% Offset130 ksi ( 896 MPa) Elongation in 4D 10% Reduction of Area 25% TABLE 3 - Minimum Room Temperature Tensile Properties PropertyValue Tensile Strength140 ksi (965 MPa) Yield Strength at 0.2% Of
35、fset130 ksi (896 MPa) Elongation in 4D 6% Reduction of Area 15% Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D
36、 - 6 - 3.7.2Castings shall be 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
37、frequency of inspection specified by purchaser, or as necessary to ensure continued maintenance of internal quality. 3.7.2.1Radiographic inspection shall be conducted in accordance with MIL-STD-453 or other method specified by purchaser. 3.7.3When specified, castings shall be subjected to additional
38、 nondestructive testing as follows: 3.7.3.1Fluorescent penetrant inspection in accordance with MIL-STD-6866 or other method specified by purchaser. 3.7.3.2Magnetic particle inspection in accordance with ASTM E 1444 or other method specified by purchaser. 3.7.4Acceptance standards for radiographic, f
39、luorescent penetrant, magnetic particle, visual, and other inspection methods shall be agreed upon by purchaser and vendor (See 8.2.8). MIL-STD-2175 may be used to specify acceptance standards (casting grade) and frequency of inspection (casting class). 3.7.4.1When acceptance standards are not speci
40、fied, Grade C of MIL-STD-2175 shall apply for each applicable inspection method. 3.7.5Castings shall not be peened, plugged, impregnated, or welded unless authorized by purchaser. 3.7.5.1When authorized by purchaser, welding in accordance with AMS 2694 or other welding program acceptable to purchase
41、r may be used. 4.QUALITY ASSURANCE PROVISIONS: 4.1Responsibility for Inspection: The 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 and to perform any confirmatory testing deemed
42、 necessary to ensure that the castings conform to specified requirements. 4.2Classification of Tests: 4.2.1Acceptance Tests: Composition (3.1), tensile properties (3.6.1), hardness of castings (3.6.2.1, and 3.6.2.2 if castings are precipitation heat treated by vendor), and quality (3.7) are acceptan
43、ce tests and shall be performed as specified in 4.3. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 18:48:00 MSTNo reproduction or networking permitted without license from IHS -,-,- AMS 5340DSAEAMS 5340D - 7 - 4.2.
44、2Periodic Tests: Hardness of specimens (3.6.2.2), corrosion resistance (3.7.1.1), and radiographic soundness (3.7.2) are periodic tests and shall be performed at a frequency selected by vendor unless frequency of testing is specified by purchaser. 4.2.3Preproduction Tests: All technical requirements
45、 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. 4.3Sampling and Testing: The minimum testing performed by vendor shall be in accordance with the following: 4.3
46、.1One 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. 4.3.2One preproduction casting in accordance with 4.4 shall be tested to the requirements of the casting drawing and
47、to all technical requirements. 4.3.2.1Dimensional inspection sample quantity shall be as specified by purchaser. 4.3.3Tensile tests shall be conducted to determine conformance with Table 2 or Table 3. Sampling and test frequency is dependent upon the type and origin of specimen specified by purchase
48、r (See 3.4.4) or selected by vendor (See 4.3.3.4). When 3.4.2.1 applies, test frequency shall be acceptable to purchaser. 4.3.3.1For separately-cast specimens in the fully heat treated condition (See 3.3 and 3.5.2), one specimen from each master heat shall be tested to Table 2. 4.3.3.2For integrally-cast specimens in the fully heat treated condition (See 3.3 and 3.5.2), two specimens from each lot (See 8.2.9) shall be randomly selected and tested to Table 3. 4.3.3.3For specimens machined from a casting, one casting shall be randomly selected from each lot and tested in