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 there
2、from, 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 International All rights reserved. No part of this p
3、ublication 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: +1 724-776-497
4、0 (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:/standards.sae.org/AMS5336J AEROSPACE MATERIAL SPECIFICATION AMS5336 REV. J Issued 1957-07 Reaffirmed 2006-02 Revi
5、sed 2017-09 Superseding AMS5336H Steel, Investment Castings 0.95Cr - 0.20Mo (0.25 - 0.35C) (4130 Mod) Normalized or Normalized and Tempered (Composition similar to UNS J13046) RATIONALE AMS5336J results from a Five-Year Review and update of this specification that adds strain rate control on tensile
6、 testing (3.6.1.1), updates radiographic acceptance criteria (3.7.4.1), and adds a requirement to report exceptions to technical requirements (4.5.2). 1. SCOPE 1.1 Form This specification covers a low-alloy steel in the form of investment castings. 1.2 Application These castings have been used typic
7、ally for small structural parts of intricate design requiring heat treatment to minimum tensile strengths up to 150 ksi (1034 MPa), but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of
8、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 specified, the last published issue of that document sha
9、ll 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 +1 724-776-4970 (outside USA), www.sae.org. AMS2175 Castings, Classification and Inspection of AMS2259 Chemical Check Analysis Limits Wroug
10、ht Low-Alloy and Carbon Steels AMS2360 Room Temperature Tensile Properties of Castings AMS2694 In-Process Welding of Castings SAE INTERNATIONAL AMS5336J Page 2 of 10 AMS2804 Identification Castings AMSH6875 Heat Treatment of Steel Raw Materials ARP1917 Clarification of Terms Used in Aerospace Metals
11、 Specifications 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A370 Mechanical Testing of Steel Products ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell
12、Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness ASTM E350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron ASTM E1417 Liquid Penetrant Testing ASTM E1444 Magnetic Pa
13、rticle Testing ASTM E1742 Radiographic Examination 3. TECHNICAL REQUIREMENTS 3.1 Composition Castings shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E350, by spectrochemical methods, or by other analytical methods acceptable to
14、 purchaser (see 8.2.1 and 8.2.2). Table 1 - Composition Element Min Max Carbon Manganese Silicon Phosphorus Sulfur Chromium Molybdenum Nickel Copper 0.25 0.40 - - - 0.80 0.15 - - 0.35 0.80 1.00 0.04 0.04 1.10 0.25 0.25 0.25 3.1.1 Producer may test for any element not listed in Table 1 and include th
15、is analysis in the report of 4.5. Limits of acceptability may be specified by purchaser (see 8.2.3). 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS2259. The foundry shall not use the variation allowances to determine conformance of castings or specimens to
16、3.1. SAE INTERNATIONAL AMS5336J Page 3 of 10 3.2 Melting Practice Castings and specimens shall be poured at casting producers facility either from a melt (see 8.2.4) of a master heat or directly from a master heat (see 3.4.3 and 8.2.5). 3.2.1 Revert (gates, sprues, risers, and rejected castings) may
17、 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 a proc
18、edure authorized by purchaser (see 8.2.6). 3.2.3 If modifications, such as alloy additions or replenishments (see 8.2.10), are made by the producer at remelt, producer shall have a written procedure acceptable to purchaser that defines the controls, test, and traceability criteria for both castings
19、and separately-cast specimens. Control factors of 4.4.2.2 shall apply. 3.3 Condition Castings shall be delivered in the normalized condition, or, when required, in the normalized and tempered condition (see 3.5). 3.4 Test Specimens Specimens shall be separately-cast, integrally-cast (see 8.2.7) or m
20、achined from castings, and shall conform to 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, hardness, and tensile specimens. 3.4.
21、2.1 If alloy additions or replenishments are made at remelt as in 3.2.3, the 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 specimen
22、s (4.3.3.2) or specimens machined from castings (4.3.3.3). 3.4.3 Chemical Analysis Specimens Shall be of any convenient size and shape. 3.4.4 Tensile Specimens Shall 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
23、.1 Separately-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. 3.4.4.2 When integrally-cast specimens and specimens machined from castings are specified, specimen size and location shall be as agreed upon by pu
24、rchaser and producer (see 8.2.8 and 8.6). 3.4.5 Hardness Specimens for Response to Heat Treatment May be a representative specimen or a casting. SAE INTERNATIONAL AMS5336J Page 4 of 10 3.5 Heat Treatment To produce the condition in castings for delivery, normalize, or when required, normalize and te
25、mper, in accordance with AMS-H-6875, except as specified in 3.5.1 to conform to hardness of 3.6.2.1. 3.5.1 Production Castings and Specimens 3.5.1.1 Normalize Heat to a selected temperature in the range of 1700 to 1750 F (927 to 954 C), in an atmosphere neutral to the specified carbon range, hold at
26、 heat for not less than one hour, and cool at a rate equivalent to that obtained in still air. 3.5.1.2 Temper When required, heat to a temperature not lower than 800 F (427 C). 3.5.2 Response to Heat Treatment Castings or specimens for testing after hardening and tempering shall be heat treated as i
27、n 3.5.1 and the following: 3.5.2.1 Harden Heat to 1600 F 25 F (871 C 14 C), in an atmosphere neutral to the specified carbon range, hold at heat for not less than 30 minutes, and quench in oil or at a rate equivalent to oil quenching. 3.5.2.2 Temper Double temper by heating to a temperature not lowe
28、r than 800 F (427 C), holding at heat for one hour per inch (25 mm) of cross section, but not less than one hour, and cooling in air after each operation (see 8.3). 3.5.3 Tensile specimens used for master heat qualification may be heat treated separately from castings. 3.6 Properties Conformance sha
29、ll be based upon testing of separately-cast specimens unless purchaser specifies integrally-cast specimens or specimens machined from a casting. Properties of integrally-cast specimens or specimens machined from castings shall be as specified by purchaser. 3.6.1 Room Temperature Tensile Properties S
30、hall be shown in Table 2, 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 defined as specified in AMS2360. Table 2 - Minimum tensile properties Property Value Tensile Strength Yield Strength at 0.2% Offset El
31、ongation in 4D Reduction of Area 150 ksi (1034 MPa) 125 ksi ( 862 MPa) 5% 10% 3.6.1.1 The strain rate shall be set at 0.005 in/in/min (0.005 mm/mm/min) and maintained within a tolerance of 0.002 in/in/min (0.002 mm/mm/min) through 0.2% offset yield strain. After the yield strain, the speed of the te
32、sting machine shall be set between 0.05 and 0.5 inch/inch (mm/mm) of the length of the reduced section (or distance between the grips for specimens not having a reduced section) per minute. Alternatively, an extensometer and strain rate indicator may be used to set the strain rate between 0.05 and 0
33、.5 in/in/min (mm/mm/min). SAE INTERNATIONAL AMS5336J Page 5 of 10 3.6.2 Hardness Shall be as follows, determined in accordance with ASTM A370. 3.6.2.1 Production Castings as Normalized or Normalized and Tempered Shall be not higher than 30 HRC, or equivalent (see 8.4). 3.6.2.2 Hardness as a Response
34、 to Heat Treatment Castings or specimens as hardened and tempered shall be 32 to 38 HRC, or equivalent (see 8.4). 3.6.3 Carburization or Decarburization The carbon content shall be within the limits of 3.1 throughout the casting except within 0.003 inch (0.08 mm) of the surface. 3.7 Quality 3.7.1 Ca
35、stings, 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, and free of scale and other process-induced surface cont
36、amination that would obscure defects. 3.7.2 Castings 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
37、 conducted in accordance with the frequency of inspection specified by purchaser or as necessary to ensure continued maintenance of internal quality. 3.7.2.1 Radiographic examination shall be conducted in accordance with ASTM E1742 or other process method specified by purchaser. 3.7.3 When specified
38、, additional nondestructive testing shall be performed as follows: 3.7.3.1 Fluorescent penetrant testing in accordance with ASTM E1417 or other method specified by purchaser. 3.7.3.2 Magnetic particle testing in accordance with ASTM E1444 or other method specified by purchaser. 3.7.4 Acceptance stan
39、dards for radiographic, magnetic particle, fluorescent penetrant, visual, and other inspection methods shall be as agreed upon by purchaser and producer (see 8.2.8). AMS2175 may be used to specify acceptance standards (casting grade) and frequency of inspection (casting class). 3.7.4.1 When acceptan
40、ce standards 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 aut
41、horized 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. SAE INTERNATIONAL AMS5336J Page 6 of 10 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of castings shall supply
42、 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 conform to specified requirements. 4.2 Classification of Tests 4.2.1 Accept
43、ance Tests Composition (3.1), tensile properties (3.6.1), hardness (3.6.2.1 and 3.6.2.2), and the applicable requirements of quality (3.7) are acceptance tests and shall be performed as specified in 4.3. 4.2.2 Periodic Tests Carburization/decarburization (3.6.3) and radiographic soundness (3.7.3) ar
44、e periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by the purchaser. 4.2.3 Preproduction Tests All technical requirements are preproduction tests and shall be performed on specimens or sample castings (4.3), when a change in contr
45、ol factors occurs (4.4.2.2), and when purchaser deems confirmatory testing to be required. 4.3 Sampling and Testing The 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 conform
46、ance with Table 1, unless 3.4.2.1 applies, in which case frequency of testing 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 drawing and to all technical requirements. 4.3.2.1 Dimensional inspection sample q
47、uantity shall be as specified by purchaser. 4.3.3 Tensile tests shall be conducted to determine conformance with Table 2. Sampling and test frequency is 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 f
48、requency shall be acceptable to purchaser. 4.3.3.1 For separately-cast specimens in hardened and tempered condition of 3.5.2, one or more specimens from each master heat shall be tested for conformance with 3.6.1. 4.3.3.2 For integrally-cast specimens in the hardened and tempered condition of 3.5.2,
49、 at least two specimens from each lot shall be tested for conformance with 3.6. 4.3.3.3 For specimens machined from castings, one or more castings shall be randomly selected from each lot and tested in the hardened and tempered condition of 3.5.2 at locations shown on the engineering drawing for conformance with 3.6. 4.3.3.3.1 When size and location of specimens are not shown, at least two test specimens shall be tes
