1、AEROSPACE MATERIAL SPECIFICATION AMS5352 REV. F Issued 1953-07 Revised 2009-07 Reaffirmed 2015-04 Superseding AMS5352E Steel, Corrosion-Resistant, Investment Castings 17Cr - 0.55Mo (0.95 - 1.20C) Annealed (Composition similar to UNS J91639) RATIONALE AMS5352F has been reaffirmed to comply with the S
2、AE five-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 suitability for any particular use, including any paten
3、t 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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights
4、 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 ORDER: Tel: 877-606-7323 (inside USA and
5、 Canada) Tel: +1 724-776-4970 (outside USA) 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/AMS5352F 1. SCOPE 1.1 Form This specification covers
6、a corrosion-resistant steel in the form of investment castings. 1.2 Application These castings have been used typically for parts requiring hardness up to 58 HRC and having resistance to corrosion and to wear, but usage is not limited to such applications. Optimum corrosion resistance is obtained by
7、 hardening from 1850 to 1950 F (1010 to 1066 C) and tempering at not higher than 800 F (427 C). 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 subse
8、quent revision of a document unless a specific document issue is specified. 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 Publications Available from SAE, 400 Commonwealth Drive, Warrenda
9、le, PA 15096-0001 or www.sae.org. AMS2175 Castings, Classification and Inspection of AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2694 In-Process Welding of Castings AMS2700 Passivation of Corrosi
10、on Resistant Steels AMS2804 Identification, Castings 2.2 ASTM Publications Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, or www.astm.org. ASTM E 18 Rockwell Hardness of Metallic Materials ASTM E 353 Chemical Analysis of Stainless, Heat Resisting, Maraging, and Other S
11、imilar Chromium-Nickel-Iron Alloys ASTM E 1077 Estimating the Depth of Decarburization of Steel Specimens ASTM E 1417 Liquid Penetrant Testing ASTM E 1444 Magnetic Particle Testing ASTM E 1742 Radiographic Examination 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weig
12、ht 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 8.2.1). TABLE 1 - COMPOSITION Element min max Carbon Manganese Silicon Phosphorus Sulfur Chromium Molybdenum Nickel Copper 0.
13、95 - - - - 16.00 0.35 - - 1.20 1.00 1.00 0.04 0.03 18.00 0.75 0.50 0.75 3.1.1 Vendor may test for any element not otherwise listed in Table 1 and include this analysis in the report of 4.5. Limits of acceptability may be specified by purchaser (See 8.2.2). 3.1.2 Check Analysis Composition variations
14、 shall meet the applicable requirements of AMS2248. 3.2 Melting Practice Castings and specimens shall be poured at casting vendors facility either from a melt (See 8.2.3) of a master heat, or directly from a master heat (See 3.4.2 and 8.2.4). 3.2.1 Revert (gates, sprues, risers, and rejected casting
15、s) 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 together and poured into castings using
16、a procedure authorized by purchaser. 3.2.3 If melts are modified by replenishment (See 8.2.5), vendor shall 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 a
17、pply. 3.3 Condition Castings shall be delivered in the annealed condition. SAE INTERNATIONAL AMS5352F Page 2 of 9_ 3.4 Test Specimens Specimens shall be separately-cast, integrally-cast (See 8.2.6), or machined from a casting, and shall conform to 3.2. 3.4.1 If specimens are separately-cast, vendor
18、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 hardness specimens. 3.4.2.1 If replenishments are made at remelt as in 3.2.3, the frequency of sampling and testing used by the vend
19、or for qualification to 3.4.2 shall be acceptable to purchaser. 3.4.3 Chemical Analysis Specimens Shall be of any convenient size and shape. 3.4.4 Hardness Specimens for Response to Heat Treatment May be a representative specimen or a casting. 3.5 Heat Treatment To produce the condition in castings
20、for delivery, anneal to conform to the hardness requirements of 3.6.1. 3.5.1 Response to Heat Treatment Castings or representative test specimens shall be annealed as in 3.5 and shall be heat treated as follows for subsequent testing to demonstrate response to heat treatment. 3.5.1.1 Hardening Heat
21、to 1875 F 25 (1024 C 14), hold at heat for not less than 30 minutes, and cool at a rate equivalent to cooling in still air. 3.5.2 Hardness specimens used for master heat qualification may be heat treated separately from castings 3.6 Properties 3.6.1 Hardness Shall be as follows, determined in accord
22、ance with ASTM E 18. 3.6.1.1 Hardness of Production Castings Shall be not higher than 30 HRC, or equivalent (See 8.3) for the annealed condition. 3.6.1.2 Hardness as a Response to Heat Treatment Castings and representative specimens, annealed and hardened to the condition of 3.5.1.1, shall have a ha
23、rdness not lower than 58 HRC, or equivalent (See 8.3). 3.6.2 Decarburization Shall be not greater than 0.005 inches (0.13 mm), determined on castings or representative specimens annealed in a production heat treat load. SAE INTERNATIONAL AMS5352F Page 3 of 9_ 3.6.2.1 Decarburization shall be measure
24、d in accordance with ASTM E 1077 on a hardened but untempered specimen protected during heat treatment to prevent changes in surface carbon content. In case of dispute, the depth of decarburization determined using the microhardness traverse method shall govern. 3.7 Quality 3.7.1 Castings, as receiv
25、ed 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, and free of scale and other process induced surface contamination which w
26、ould obscure defects. 3.7.1.1 Unless otherwise specified, castings shall be sufficiently cleaned such that, after passivation by purchaser, the castings shall meet the corrosion test requirements of AMS2700. 3.7.2 Castings shall be produced under radiographic control. This control shall consist of r
27、adiographic 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 specified by purchaser, or as necessary to ensure continued maintenance of
28、 internal quality. 3.7.2.1 Radiographic inspection shall be conducted in accordance with ASTM E 1742 or other method specified by purchaser. 3.7.3 When specified, castings shall be subjected to additional nondestructive testing as follows: 3.7.3.1 Fluorescent penetrant testing in accordance with AST
29、M E 1417 or other method specified by purchaser. 3.7.3.2 Magnetic particle testing in accordance with ASTM E 1444 or other method specified by purchaser. 3.7.4 Acceptance standards for radiographic, fluorescent penetrant, magnetic particle, visual, and other inspection methods shall be agreed upon b
30、y purchaser and vendor (See 8.2.7). AMS 2175 may be used to specify acceptance standards (casting grade) and frequency of inspection (casting class). 3.7.4.1 When acceptance standards are not specified, Grade C of AMS2175 as applicable to steel castings shall apply for each applicable method of insp
31、ection. 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 or other welding program acceptable to purchaser may be used. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for In
32、spection 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 necessary to ensure that the castings conform to specified requirements
33、. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), hardness of production castings (3.6.1.1 as annealed), response to heat treatment after hardening (3.6.1.2 as hardened) and applicable requirements of quality (3.7) are acceptance tests and shall be performed as specified in 4.3
34、. SAE INTERNATIONAL AMS5352F Page 4 of 9_ 4.2.2 Periodic Tests Decarburization (3.6.2) 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. 4.2.3 Preproduction Tests All technical requir
35、ements are preproduction tests and shall be performed on sample castings (4.3.2), when a change in control factors occurs (4.4.2.2), or when purchaser deems confirmatory testing to be required. 4.3 Sampling and Testing The minimum testing performed by vendor shall be in accordance with the following
36、: 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 accordance with 4.4 shall be tested to the requirements of the casting drawi
37、ng and to all technical requirements. 4.3.2.1 Dimensional inspection sample quantity shall be as specified by purchaser. 4.3.3 Castings shall be inspected in accordance with 3.7 to the methods, frequency, and acceptance standards specified by purchaser. 4.3.4 Castings in the annealed condition of 3.
38、5 for delivery shall be tested for hardness to determine conformance to 3.6.1.1. Unless otherwise specified by purchaser, one casting per lot shall be hardness tested. 4.3.4.1 In the event of failure, the entire lot shall be 100% inspected or reheat treated in accordance with 4.6.2. 4.3.5 For the ha
39、rdened condition of 3.5.1.1, one specimen from each master heat shall be tested for hardness to determine conformance to 3.6.1.2. 4.4 Approval 4.4.1 Sample casting(s) from new or reworked master patterns produced under the casting procedure of 4.4.2 shall be approved by purchaser before castings for
40、 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 produce castings and test specimens meeting the requirements of the casting drawing and this specificati
41、on. These parameters shall constitute the approved casting procedure and shall be used for production of subsequent castings and test specimens. If necessary to make any change to these parameters, vendor shall submit a statement of the proposed change for purchaser reapproval. When requested, vendo
42、r 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. SAE INTERNATIONAL AMS5352F Page 5 of 9_ 4.4.2.2 Control factors for producing castings and separately-cast
43、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 test specimens must generally represent, but need not be identical to, those factors used for castings (
44、See 3.2.3 and 3.4.1). Composition of ceramic cores, if used Arrangement and number of patterns in the mold (including integrally-cast specimens if applicable) Size, shape, and location of gates and risers Mold refractory formulation Grain refinement methods, if applicable Mold back up material (weig
45、ht, thickness, or number of dips) Type of furnace, atmosphere, and charge for melting Mold preheat and metal pouring temperatures Fluxing or deoxidation procedure Replenishment procedure, if applicable Time molten metal is in furnace Solidification and cooling procedures Cleaning operations (mechani
46、cal and chemical) Heat treatment for delivery and response to heat treatment Straightening Final inspection methods Location and size of integrally-cast specimens and specimens machined from a casting, if applicable. 4.4.2.2.1 Any of the control factors for which parameters are considered proprietar
47、y by vendor may be assigned a code designation. Each variation in such parameters shall be assigned a modified code designation. 4.4.2.2.1.1 Unless otherwise agreed upon by purchaser and vendor, purchaser shall be entitled to review proprietary control factor details and coding at vendors facility.
48、4.5 Reports The vendor of castings shall furnish with each shipment a certification document declaring that castings have been processed, tested, and inspected as specified and that the results of the inspections and tests conform to requirements. 4.5.1 Unless otherwise specified, vendor shall furnish test report(s) showing the results of t
