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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2009 SAE International All rights reserved. No part of this publication ma
3、y 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 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS2658CAEROSPACEMATERIALSPECIFICATIONAMS2658 REV. C Issued 1980-04 Revised 2009-10 Superseding
5、 AMS2658B Hardness and Conductivity Inspection of Wrought Aluminum Alloy Parts RATIONALEAMS2658C revises test locations (4.4) and hardness and conductivity values (Tables 1, 2) and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Purpose This specification establishes hardness an
6、d electrical conductivity acceptance criteria of finished or semi-finished parts of wrought aluminum alloys. 1.2 Application This specification has been used typically for nondestructive testing of wrought aluminum alloy parts to aid in determining correctness of alloy, temper, and/or heat treatment
7、, 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 this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific
8、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 ASTM Publications Available from ASTM International, 100 Barr Drive, P.O. Box C700, West Conshohocken, PA 19428-2959
9、, Tel: 610-832-9585, www.astm.org. ASTM E 10 Brinell Hardness of Metallic Materials ASTM E 18 Rockwell Hardness of Metallic Materials ASTM E 1004 Electromagnetic (Eddy-Current) Measurements of Electrical Conductivity ASTM G 34 Exfoliation Corrosion Susceptibility in 2xxx and 7xxx Series Aluminum All
10、oys (EXCO Test) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS2658C Page 2 of 82.2 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building
11、 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/.MIL-STD-1537 Electrical Conductivity Test for Measurement of Heat Treatment of Aluminum Alloys, Eddy Current Method3. TECHNICAL REQUIREMENTS 3.1 Equipment The equipment used for hardness
12、and electrical conductivity testing shall meet the requirements of ASTM E 10, ASTM E 18, ASTM E 1004, or MIL-STD-1537, as applicable. 3.1.1 Verification The hardness test equipment when in use shall be checked against test blocks at least once per day to ensure accurate and repeatable results. The c
13、onductivity test equipment shall require a periodic standardization every hour of continuous operation. Equipment which does not provide accurate or repeatable results shall be corrected and recalibrated. 3.2 Procedure 3.2.1 Hardness Shall be determined in accordance with ASTM E 10 for Brinell hardn
14、ess and ASTM E 18 for Rockwell hardness. 3.2.2 Electrical Conductivity Shall be determined in accordance with ASTM E 1004 or MIL-STD-1537. 3.3 Properties Parts shall conform to the hardness and electrical conductivity values in Table 1 for bare alloys and Table 2 for clad alloys after heat treatment
15、 or annealing in accordance with the applicable specification. Alloys/tempers not contained herein shall be referred to the cognizant engineering organization. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The inspection source shall be responsible for the performance of all requ
16、ired tests. Purchaser reserves the right to perform any confirmatory testing deemed necessary to ensure that hardness and conductivity conform to specified requirements.4.2 Classification of Tests Not applicable. 4.3 Sampling and Testing Shall be in accordance with the applicable heat treatment spec
17、ification or as agreed upon by purchaser and processing vendor.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS2658C Page 3 of 84.4 Test Locations Shall be in accordance with the applicable dr
18、awing, specification or contract. 4.4.1 If test locations are not specified, the following shall be considered acceptable. 4.4.1.1 Conductivity testing shall be performed in accordance with the applicable heat treat document and at sufficient locations on the surface to ensure that the entire part m
19、eets the requirements of Tables 1 and 2. At a minimum the testing shall be performed as follows: A part with any dimension exceeding twelve inches shall be tested in more than one location. When more than one location is tested, each part shall be tested at a location near its center and at its dime
20、nsional extremes. Long, thin parts, such as extruded shapes or sheet metal parts shall be tested at both ends, and near the center. Parts shall be tested in both the nominally thinnest and thickest areas, when possible. Large sheets shall be tested in several locations in order to determine that the
21、 entire part meets the requirements of Tables 1 or 2. 4.4.1.2 Hardness testing shall be performed in accordance with the applicable heat treat document and at sufficient locations on the surface to ensure that the entire part meets the requirements of Tables 1 and 2. When tested at the thickest acce
22、ssible section, one hardness test per part is normally adequate to determine part acceptability. When less than 100% hardness testing is performed, the sample tested shall include those parts within the lot tested with the highest and lowest conductivity values.4.5 ReportsThe inspection source shall
23、 furnish with each shipment a report showing the actual minimum and maximum values obtained. This report shall include the purchase order number, AMS2658C, heat treatment specification number, part number, and quantity. 5. PREPARATION FOR DELIVERY Not applicable. 6. ACKNOWLEDGMENT A vendor shall men
24、tion this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Parts not inspected in accordance with this specification or not conforming to the specified hardness and conductivity requirements, or to modifications authorized by purcha
25、ser, will be subject to rejection. 7.1 Nonconforming Parts Parts failing to meet the hardness or electrical conductivity acceptance values specified herein shall be either reprocessed in accordance with the limits of the applicable heat treatment specification or referred to the cognizant quality as
26、surance organization for additional testing or evaluation. 8. NOTES 8.1 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left
27、of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only are clarified in ARP1917 treated by the user during the fabrication process. Copyright S
28、AE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS2658C Page 4 of 88.2 Terms used in AMS are clarified in ARP1917 and as follows: 8.2.1 Parts Finished and semi-finished parts also include raw material stoc
29、k heat treated by the user during the fabrication process. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented
30、 only for information. 8.4 Purchase documents should specify not less than the following: AMS2658C.PREPARED BY AMS COMMITTEE “D” AND “AMEC” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS2658
31、C Page 5 of 8TABLE 1 - BARE ALUMINUM ALLOY HARDNESS AND CONDUCTIVITY ACCEPTANCE VALUES AlloyTemper(1)HardnessBrinellmin (2) HardnessRockwell, min (3) BHardnessRockwell, min (3) EHardnessRockwell, min (3) HHardnessRockwell, min (3) 15TConductivity% (4) 1100 0 - - - 50 max - 57.0 - 62.0 2004 T6 - - 92
32、 - - 35.5 - 42.0 2014 0 - 22 max 70 max 95 max - 43.5 - 51.5 T3 (9) 100 65 95 - 82 31.5 - 35.0 T4 100 65 95 - 82 31.5 - 35.0 T6 125 78 - 86 35.0 - 41.5 2024 0 - 22 max 70 max 95 max - 46.0 - 51.0 T3 (9) 100 63 94 - 82 27.5 - 32.5 T4 100 63 94 - 82 27.5 - 34.0 T6 114 72 98 - 84 34.0 - 44.0 T72 114 72
33、 98 - 82 38.0 - 45.0 T8 118 74 99 - 85 35.0 - 42.5 T86 (9) 135 83 - 87.5 37.0 - 41.0 2124 T3 110 69 97 - - 27.5 - 32.5 T8 120 74 99 - - 35.0 - 42.5 2219 0 - 22 max 70 max 95 max - 44.0 - 49.0 T3 (9) 95 60 92 - 79 26.0 - 31.0 T31 (9) 96 60 - - - 26.0 - 34.0 T37 (9) 100 62 93 - 81 27.0 - 31.0 T4 100 5
34、8 90 - 78 28.0 - 32.0 T6 110 62 93 - 81 32.0 - 36.0 T8 115 71 98 - 83 31.0 - 35.0 T87 125 75 - 84 31.0 - 35.0 3003 0 - - - 65 max - 44.5 - 50.5 5052 0 - - 70 max 95 max - 34.0 - 37.0 6013 0 - - 90 max - - - T4 - 40 - - - (5) T6 - 61 96 - - (5) 6061 0 40 max - - 75 max - (5) T4 50 - 60 - 64 (5) T6 80
35、 47 85 - 78 (5) 6063 0 - - - 70 max - (5) T1 (9) - - 37 - 53 (5) T4 - - 40 - 54 (5) T5 (9) - - 44 - 57 (5) T6 60 - 70 - 68 (5) 6066 0 - - 40 max - - 42.0 - 47.0 T4 - - 85 - 76 34.0 - 41.0 T6 100 65 95 - 82 38.0 - 50.0 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo
36、 reproduction or networking permitted without license from IHS-,-,-SAE AMS2658C Page 6 of 8TABLE 1 - BARE ALUMINUM ALLOY HARDNESS AND CONDUCTIVITY ACCEPTANCE VALUES (CONT.) AlloyTemper(1)HardnessBrinellmin (2) HardnessRockwell, min (3) BHardnessRockwell, min (3) EHardnessRockwell, min (3) HHardnessR
37、ockwell, min (3) 15TConductivity% (4) 7049 0 - 22 max 70 max 95 max - 44.0 - 50.0 T73 135 81 - 85 38.0 - 44.0 T76 140 84 - 87 38.0 - 44.0 7050 0 - 22 max 70 max 95 max - 44.0 - 50.0 T73 135 81 - 85 41.0 - 44.0 T74 135 82 - 86 40.0 - 44.0 (6) T76 140 84 - 87 39.0 - 44.0 7075 0 - 22 max 70 max 95 max
38、- 44.0 - 48.0 T6 135 84 - 87 30.5 - 36.0 T73 125 78 - 85 38.0 - 43.0 T76 130 82 - 86 38.0 - 42.0 7149 0 - 22 max 70 max 95 max - 44.0 - 50.0 T73 135 81 - 85 38.0 - 44.0 T76 140 84 - 87 38.0 - 44.0 7150 0 - 22 max 70 max 95 max - 44.0 - 50.0 T61 (9) 145 87 - - 29.0 - 33.5 T73 135 81 - 85 41.0 - 44.0
39、T74 135 82 - 86 40.0 - 44.0 (6) T76 140 84 - 87 39.0 - 44.0 T77 (9) 145 87 - 87 37.0 - 39.0 7175 0 - - - 95 max - 44.0 - 48.0 T6 135 84 - 87 30.5 - 36.0 T73 125 78 - 85 38.0 - 43.0 T74 135 82 - - 38.0 - 42.0 T76 130 82 - 86 38.0 - 42.0 7178 0 - - - 95 max - 43.0 - 47.0 T6 145 87 - 88 29.0 - 34.0 T76
40、 140 84 - 87 38.0 - 42.0 7475 T73 - 78 - - 38.0 - 44.5 T76 - 82 - - 38.0 - 42.0 (8) T6 - 84 - - - 30.0 - 35.0 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS2658C Page 7 of 8TABLE 2 - CLAD AL
41、UMINUM ALLOY SHEET HARDNESS AND CONDUCTIVITY ACCEPTANCE VALUES Alloy Temper Nominal Thickness (7) Inch (mm) HardnessRockwellMinimum(3)BHardnessRockwellMinimum(3)EHardnessRockwellMinimum(3)HHardnessRockwellMinimum(3)15TConductivity% (4) 2014 0 All 22 max 70 max 95 max - 43.5 - 51.5 T6 Up to 0.062 (1.
42、57), incl 76 - 85 35.5 - 44.0 Over 0.062 (1.57) 75 - - 35.5 - 44.0 2024 0 All 22 max 70 max 95 max - 46.0 - 51.0 T3 (9) Up to 0.062 (1.57), incl 57 91 - 79 28.5 - 35.0 Over 0.062 (1.57) 60 93 - - 28.5 - 35.0 T4 Up to 0.062 (1.57), incl 57 91 - 79 28.5 - 35.0 Over 0.062 (1.57) 60 93 - - 28.5 - 35.0 T
43、6 Up to 0.062 (1.57), incl 60 93 - 82 35.0 - 45.0 Over 0.062 (1.57) 62 94 - - 35.0 - 45.0 T72 Up to 0.062 (1.57), incl 52 91 - 80 39.0 - 45.0 Over 0.062 (1.57) 52 93 - 80 39.0 - 45.0 T8 All 65 97 - 82 35.0 - 45.0 T86 (9) All 83 - 87 36.0 - 42.0 2219 0 All 22 max 70 max 95 max - 44.0 - 49.0 T6 Up to
44、0.062 (1.57), incl 61 92 - 80 32.0 - 37.0 Over 0.062 (1.57) 60 91 - - 32.0 - 37.0 T8 Up to 0.062 (1.57), incl 64 96 - 82 31.0 - 37.0 Over 0.062 (1.57) 63 95 - - 31.0 - 37.0 6061 0 All - - 75 max - (5) T6 All - 84 - 74 - 7075 0 All 22 max 70 max 95 max - 44.0 - 48.0 T6 Up to 0.032 (0.81), incl 78 86
45、30.5 - 36.0 Over 0.032 to 0.062, incl 76 - - 30.5 - 36.0 (Over 0.81 to 1.57, incl Over 0.062 (1.57) 75 - - 30.5 - 36.0 T76 Up to 0.032 (0.81), incl 76 84 38.0 - 42.0 Over 0.032 to 0.062, incl 75 - - 38.0 - 42.0 (Over 0.81 to 1.57, incl) Over 0.062 (1.57) 74 - - 38.0 - 42.0 7178 0 All - - 95 max - 43
46、.0 - 47.0 T6 Up to 0.032 (0.81), incl 79 86 29.0 - 34.0 Over 0.032 to 0.062, incl 78 - - 29.0 - 37.0 (Over 0.81 to 1.57, incl) Over 0.062 (1.57) 76 - - 29.0 - 37.0 7475 T76 74 85 37.0 - 43.0 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking
47、 permitted without license from IHS-,-,-SAE AMS2658C Page 8 of 8NOTES TO TABLES 1 AND 2 (1) Only the basic temper, TX, TXX, is shown. Hardness and conductivity values also apply to the stress relieved TX51, TX52, TX54, TX510, or TX511 conditions and the user heat treated T42 and T62 conditions. (2)
48、HB, 500 kg load, 10 mm ball. (3) Hardness values for the annealed (O) condition are maximum; all other hardness values are minimum. The HR15T values are for parts up to 0.032 inch (0.81 mm), incl, in nominal thickness. (4) % International Annealed Copper Standard (IACS). (5) The following conductivity values are provided for reference only:
