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 2013 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:/www.sae.org/technical/standards/AMS5380G AEROSPACE MATERIAL SPECIFICATION AMS5380 REV. G Issued 1947-09 Revised 2
5、008-03 Reaffirmed 2013-11 Superseding AMS5380F Cobalt Alloy, Corrosion and Heat-Resistant, Investment Castings 50.5Co - 26Cr - 15Ni - 6.0Mo As-Cast (Composition similar to UNS R30030) RATIONALE AMS5380G has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form This specif
6、ication covers a corrosion and heat-resistant cobalt alloy in the form of investment castings. 1.2 Application These castings have been used typically for parts such as turbine vanes requiring high strength up to 1500 F (816 C), and oxidation resistance up to 2000 F (1095 C), but usage is not limite
7、d 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 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 Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canad
9、a) or 724-776-4970 (outside USA), www.sae.org. AMS2175 Castings, Classification and Inspection of AMS2269 Chemical Check Analysis Limits, Nickel, Nickel Alloys, and Cobalt Alloys AMS2360 Room Temperature Tensile Properties of Castings AMS2361 Elevated Temperature Tensile Properties of Castings AMS26
10、94 In-Process Welding of Castings AMS2804 Identification, Castings SAE INTERNATIONAL AMS5380G Page 2 of 10 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 E 8 Tension Testing of Met
11、allic Materials ASTM E 21 Elevated Temperature Tension Tests of Metallic Materials ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys ASTM E 1417 Liquid Penetrant Testing ASTM E 1742 Radiographic Examination 3. TECHNICAL REQUIREM
12、ENTS 3.1 Composition Shall conform to the percentages by weight as 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 8.3.1 and 8.3.2). TABLE 1 - COMPOSITION Element min maxCarbon
13、 0.40 0.50 Manganese - 1.00 Silicon - 1.00 Phosphorus - 0.040 Sulfur - 0.030 Chromium 24.00 28.00 Nickel 14.00 16.00 Molybdenum 5.50 6.50 Iron - 2.00 Other elements (3.1.1) - - Cobalt remainder3.1.1 Vendor may test for any element not otherwise listed in Table 1 and include this analysis in the repo
14、rt of 4.5. Limits of acceptability may be specified by purchaser (See 8.3.3). 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS2269. 3.2 Melting Practice Castings and specimens shall be poured at casting vendors facility either from a melt (See 8.3.4) of a mas
15、ter heat, or directly from a master heat (See 3.4.2 and 8.3.5). 3.2.1 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 castings. Melting of revert creates a new master heat
16、. 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 8.3.6). 3.2.3 If melts (See 8.3.4) are modified by replenishment (See 8.3.7), vendor shall have a written procedure acceptable to purchase
17、r which defines the controls, test, and traceability criteria for both castings and separately-cast specimens. Control factors of 4.4.2.2 shall apply. SAE INTERNATIONAL AMS5380G Page 3 of 10 3.3 Condition Castings shall be delivered in the as-cast condition. 3.4 Test Specimens Specimens shall be eit
18、her separately-cast, integrally-cast (See 8.3.8), 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 evaluati
19、on of chemical, and elevated temperature tensile 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 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 a
20、re conducted using integrally-cast specimens (4.3.3.2) or specimens machined-from-casting (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 E 8 with 0.250-inch (6.35-mm) diameter at
21、 the reduced parallel gage section. 3.4.4.1 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/or specimens machined-from-casting are specified, specimen siz
22、e and location shall be agreed upon by purchaser and vendor (See 8.3.9 and 8.5). 3.5 Heat Treatment Not applicable. 3.6 Properties Conformance shall be based upon testing of separately-cast specimens unless purchaser specifies integrally-cast specimens or specimens machined-from-casting. Properties
23、for integrally-cast specimens and specimens machined-from-casting shall be as specified by purchaser (See 8.5). 3.6.1 Room Temperature Tensile Properties Tensile properties may be specified by purchaser, in accordance with AMS2360. SAE INTERNATIONAL AMS5380G Page 4 of 10 3.6.2 Elevated Temperature T
24、ensile Properties at 1500 F (816 C) Shall be as shown in Table 2, determined in accordance with ASTM E 21 on separately-cast specimens heated to 1500 F 10 (816 C 6), held at heat for not less than 10 minutes before testing, and tested at 1500 F 10 (816 C 6). Properties other than those in Table 2 ma
25、y be specified by purchaser, in accordance with AMS2361. TABLE 2 - MINIMUM ELEVATED TEMPERATURE TENSILE PROPERTIES OF SEPARATELY-CAST SPECIMENS Property Value Tensile strength 55.0 ksi (380 MPa) Elongation in 4D 10% 3.6.3 Hardness Shall be as follows, determined in accordance with ASTM E 18. 3.6.3.1
26、 As-Cast Not higher than 30 HRC, or equivalent (See 8.2). 3.6.3.2 After Thermal Exposure Not higher than 43 HRC, or equivalent (See 8.2) after being heated to 1475 F 10 (802 C 6), holding at heat for 50 hours 1, and cooling to room temperature. 3.7 Quality 3.7.1 Castings, as received by purchaser, s
27、hall 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 would obscure defec
28、ts. 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 conducted in accordance with the fr
29、equency of inspection specified 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 E 1742 or other method specified by purchaser. 3.7.3 When specified, castings shall be subjected to fluorescen
30、t penetrant inspection in accordance with ASTM E 1417 or other method specified by purchaser. 3.7.4 Acceptance standards for radiographic, fluorescent penetrant, visual, and other inspection methods shall be agreed upon by purchaser and vendor (See 8.3.9). AMS2175 may be used to specify acceptance s
31、tandards (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 specified method of inspection. 3.7.5 Castings shall not be peened, plugged, impregnated, or welded unles
32、s 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. SAE INTERNATIONAL AMS5380G Page 5 of 10 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of castings shall sup
33、ply 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. 4.2 Classification of Tests 4.2.1 Accep
34、tance Tests Composition (3.1), room temperature tensile properties if specified (3.6.1), elevated temperature tensile properties (3.6.2), as-cast hardness (3.6.3.1), 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
35、 Hardness after thermal exposure (3.6.3.2) 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 requirements are preproduction tests and shall be
36、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 Testing The minimum testing performed by vendor shall be in accordance with the following: 4.3.1 One chemical analysis specimen or a
37、 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 drawing and to all technical requirements. 4.3.2
38、.1 Dimensional inspection sample quantity shall be as specified by purchaser. 4.3.3 Elevated temperature tensile tests shall be conducted to determine conformance with 3.6.2. Sampling and test frequency are dependent upon the type and origin of specimen specified by purchaser (See 3.4.4 and 3.6) or
39、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 from each master heat shall be tested to 3.6.2. 4.3.3.2 For integrally-cast specimens in the as-ca
40、st condition, two specimens shall be randomly selected from each lot (See 8.3.10) and tested for conformance with properties specified by purchaser (See 8.5). 4.3.3.3 For specimens machined-from-casting, one casting shall be randomly selected from each lot and tested in the as-cast condition, at loc
41、ations shown on the engineering drawing for conformance with properties specified by purchaser (See 8.5). 4.3.3.3.1 When size and location of specimens are not shown, two test specimens shall be tested, one from the thickest section and one from the thinnest section. Once established under 4.4.2.2,
42、test locations may be changed only as agreed upon by purchaser and vendor. SAE INTERNATIONAL AMS5380G Page 6 of 10 4.3.3.4 When acceptable to purchaser, specimens machined-from-casting may be used in lieu of both separately-cast and integrally-cast specimens, and integrally-cast specimens may be use
43、d in lieu of separately-cast specimens. In each case, the resultant properties must conform to the requirements of 3.6 or to alternative requirements specified by purchaser (See 8.5). 4.3.3.4.1 When specimens are selected for test as in 4.3.3.4 from an origin other than that specified by purchaser,
44、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, sampling and testing shall be agreed upon by purchaser and vendor. 4
45、.3.4 Castings shall be inspected in accordance with 3.7 to the methods, frequency, and acceptance standards specified by purchaser. 4.3.5 One casting or representative specimen from each master heat shall be tested for hardness to determine conformance with 3.6.3.1. 4.4 Approval 4.4.1 Sample casting
46、(s) from new or reworked tooling (i.e., patterns, molds, dies, etc.) and 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 f
47、or process control factors that will consistently produce 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 subsequent castings and test specimens. I
48、f necessary to make any change to these parameters, 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
49、 purchasers approval shall be at vendors risk. 4.4.2.2 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 test specimens must generally represent, but need not be identical to, those factors used
