SAE AMS 2658D-2016 Hardness and Conductivity Inspection of Wrought Aluminum Alloy Parts.pdf

1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDODQGHQJL neering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the VROHUHVS

2、RQVLELOLWRIWKHXVHU 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 2016 SAE International All rights reserved. No part of this publication may be reproduced

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4、-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/AMS2658D AEROSPACE MATERIAL SPECIFICATION AMS2658 REV. D Issued 1980-04 Revised 2016-03 Superseding AMS2658C

5、Hardness and Conductivity Inspection of Wrought Aluminum Alloy Parts RATIONALE AMS2658D added calibration of equipment (3.1.1), use of portable hardness testers (3.2.1), and revised the notes to Tables 1 and 2. 1. SCOPE 1.1 Purpose This specification establishes hardness and electrical conductivity

6、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, but usage is not limited

7、 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 specifie

8、d. 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 Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585

9、, www.astm.org. ASTM E10 Brinell Hardness of Metallic Materials ASTM E18 Rockwell Hardness of Metallic Materials ASTM E110 Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers ASTM E1004 Electromagnetic (Eddy-Current) Measurements of Electrical Conductivity SAE INTERNATIO

10、NAL AMS2658D Page 2 of 8 2.2 U.S. Government Publications Copies of these documents are available online at http:/quicksearch.dla.mil. MIL-STD-1537 Electrical Conductivity Test for Measurement of Heat Treatment of Aluminum Alloys, Eddy Current Method 3. TECHNICAL REQUIREMENTS 3.1 Equipment The equip

11、ment used for hardness and electrical conductivity testing shall meet the requirements of ASTM E10, ASTM E18, ASTM E1004, or MIL-STD-1537, as applicable. 3.1.1 Calibration Periodic calibration of electrical conductivity testing equipment and instrument conductivity standards shall be performed in ac

12、cordance with the requirements of MIL-STD-1537. 3.1.2 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 conductivity test equipment shall require a periodic standardization every hour of cont

13、inuous 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 E10 for Brinell hardness or ASTM E18 for Rockwell hardness. Where it is impractical due to size or configura

14、tion, portable hardness testing in accordance with ASTM E110 may be used. 3.2.2 Electrical Conductivity Shall be determined in accordance with ASTM E1004 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

15、clad alloys after heat treatment or annealing in accordance with the applicable specification. Alloys/tempers not contained herein shall meet the hardness and electrical conductivity requirements on the drawing, purchase order, or as specified by the cognizant engineering organization. 4. QUALITY AS

16、SURANCE PROVISIONS 4.1 Responsibility for Inspection The inspection source shall be responsible for the performance of all required tests. Purchaser reserves the right to perform any confirmatory testing deemed necessary to ensure that hardness and conductivity conform to specified requirements. 4.2

17、 Classification of Tests Not applicable. 4.3 Sampling and Testing Shall be in accordance with the applicable heat treatment specification or as agreed upon by purchaser and processing vendor. SAE INTERNATIONAL AMS2658D Page 3 of 8 4.4 Test Locations Shall be in accordance with the applicable drawing

18、, 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 meets

19、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 dimension

20、al 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 enti

21、re 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 accessibl

22、e section, one hardness test per part is 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 Reports The inspection source shall furnish wit

23、h each shipment a report showing the actual minimum and maximum values obtained. This report shall include the purchase order number, AMS2658D, heat treatment specification number, part number, and quantity. 5. PREPARATION FOR DELIVERY Not applicable. 6. ACKNOWLEDGMENT A vendor shall mention this sp

24、ecification number and its revision letter in all quotations and when acknowledging purchase orders. 7. 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 hea

25、t treatment specification and retested or referred to the cognizant quality assurance organization for additional testing or evaluation. 8. NOTES 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not edi

26、torial changes, have been made to the previous issue of this document. An (R) symbol to the left 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 chan

27、ges only. 8.2 Terms used in AMS are clarified in ARP1917 and as follows: 8.2.1 Parts Finished and semi-finished parts also include raw material stock heat treated by the user during the fabrication process. SAE INTERNATIONAL AMS2658D Page 4 of 8 8.3 Dimensions and properties in inch/pound units and

28、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 only for information. 8.4 Purchase documents should specify not less than the following: AMS2658D. 8.5 The condu

29、ctivity acceptance limits were removed from Table 2 because they were based on only a 60 kHz meter. Many conductivity inspection instruments use oscillator frequencies other than 60kHz or have variable oscillator frequency settings. Corrected acceptance limits will be different depending on the osci

30、llator frequency used and the values must correspond to this frequency. See Note 8 corresponding to Tables 1 and 2. SAE INTERNATIONAL AMS2658D Page 5 of 8 Table 1 - Bare aluminum alloy hardness and conductivity acceptance values Alloy Temper(1) Hardness Conductivity% IACS(4) (8) Brinell min (2) Rock

31、well, min (3) B E H 15T 1100 O - - - 50 max - 57.0 - 62.0 2004 T6 - - 92 - - 35.5 - 42.0 2014 O - 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 O - 22 max 70 max 95 max - 46.0 - 51.0 T3 (9) 100 63 94 - 82 27.5 - 32.

32、5 T4 100 63 94 - 82 27.5 - 34.0 T6 114 72 98 - 84 34.0 - 44.0 T72 114 72 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 O - 22 max 70 max 95 max - 44.0 - 49.0 T3 (9) 95 60 92 - 79 26.0 - 31.0 T31

33、 (9) 96 60 - - - 26.0 - 34.0 T37 (9) 100 62 93 - 81 27.0 - 31.0 T4 100 58 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 O - - - 65 max - 44.5 - 50.5 5052 O - - 70 max 95 max - 34.0 - 37.0 6013 O - - 90 max - - - T4 - 40 - - - (5) T6

34、- 61 96 - - (5) 6061 O 40 max - - 75 max - (5) T4 50 - 60 - 64 (5) T6 80 47 85 - 78 (5) 6063 O - - - 70 max - (5) T1 (9) - - 37 - 53 (5) T4 - - 40 - 54 (5) T5 (9) - - 44 - 57 (5) T6 60 - 70 - 68 (5) 6066 O - - 40 max - - 42.0 - 47.0 T4 - - 85 - 76 34.0 - 41.0 T6 100 65 95 - 82 38.0 - 50.0 SAE INTERN

35、ATIONAL AMS2658D Page 6 of 8 Table 1 - Bare aluminum alloy hardness and conductivity acceptance values (cont.) Alloy Temper(1) Hardness Conductivity% IACS(4) (8) Brinell min (2) Rockwell, min (3) B E H 15T 7049 O - 22 max 70 max 95 max - 44.0 - 50.0 T73 135 81 - 85 38.0 - 44.0 T76 140 84 - 87 38.0 -

36、 44.0 7050 O - 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 O - 22 max 70 max 95 max - 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 O - 22 max 70 max 95 max - 44.

37、0 - 50.0 T73 135 81 - 85 38.0 - 44.0 T76 140 84 - 87 38.0 - 44.0 7150 O - 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 T76 140 84 - 87 39.0 - 44.0 T77 (9) 145 87 - 87 37.0 - 39.0 7175 O - - - 95 max - 44.0 - 48.0 T6 135 84 - 87 30.5 - 36.0 T73 125 78

38、- 85 38.0 - 43.0 T74 135 82 - - 38.0 - 42.0 T76 130 82 - 86 38.0 - 42.0 7178 O - - - 95 max - 43.0 - 47.0 T6 145 87 - 88 29.0 - 34.0 T76 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 (8) SAE INTERNATIONAL AMS2658D Page 7 of 8 Table 2 - C

39、lad aluminum alloy sheet hardness acceptance values (8) Alloy Temper (1) Nominal Thickness (7) Inch (mm) Hardness Rockwell Min. (3) B E H 15T 2014 O All 22 max 70 max 95 max - T6 Up to 0.062 (1.57), incl 76 - 85 Over 0.062 (Over 1.57) 75 - - 2024 O All 22 max 70 max 95 max - T3 (9) Up to 0.062 (1.57

40、), incl 57 91 - 79 Over 0.062 (Over 1.57) 60 93 - - T4 Up to 0.062 (1.57), incl 57 91 - 79 Over 0.062 (Over 1.57) 60 93 - - T6 Up to 0.062 (1.57), incl 60 93 - 82 Over 0.062 (Over 1.57) 62 94 - - T72 Up to 0.062 (1.57), incl 52 91 - 80 Over 0.062 (Over 1.57) 52 93 - 80 T8 All 65 97 - 82 T86 (9) All

41、83 - 87 2219 O All 22 max 70 max 95 max - T6 Up to 0.062 (1.57), incl 61 92 - 80 Over 0.062 (Over 1.57) 60 91 - - T8 Up to 0.062 (1.57), incl 64 96 - 82 Over 0.062 (Over 1.57) 63 95 - - 6061 O All - - 75 max - T6 All - 84 - 74 7075 O All 22 max 70 max 95 max - T6 Up to 0.032 (0.81), incl 78 86 Over

42、0.032 to 0.062, incl (Over 0.81 to 1.57, incl) 76 - - Over 0.062 (Over 1.57) 75 - - T76 Up to 0.032 (0.81), incl 76 84 Over 0.032 to 0.062, incl (Over 0.81 to 1.57, incl) 75 - - Over 0.062 (Over 1.57) 74 - - 7178 O All - - 95 max - T6 Up to 0.032 (0.81), incl 79 86 Over 0.032 to 0.062, incl (Over 0.

43、81 to 1.57, incl) 78 - - Over 0.062 (Over 1.57) 76 - - 7475 T76 74 85 SAE INTERNATIONAL AMS2658D Page 8 of 8 NOTES 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 u

44、ser heat treated T42 and T62 conditions. (2) HB, 500 kg load, 10 mm ball. (3) Hardness values for the annealed (O) condition are maximum; all other hardness values are minimum. Refer to ASTM E18 or ASTM E10 (as applicable) to determine minimum thickness guide for selection of scales. (4) % Internati

45、onal Annealed Copper Standard (IACS). (5) The following conductivity values are provided for reference only: Alloy temper Conductivity (% IACS) 6013 T4 37.0-39.06063 O 57.0 - 65.0 6013 T6 40.0-43.06063 T1 48.0 - 58.0 6061 O 42.0 - 50.06063 T4 48.0 - 58.0 6061 T4 35.5 - 43.06063 T5 50.0 - 60.0 6061 T

46、6 40.0 - 50.06063 T6 50.0 - 60.0 6066 O 42.0 - 47.0 6066T4 34.0 - 41.0 6066 T6 38.0 - 50.0(6) Alloys 7050-T74 (AMS4050, AMS4107, AMS4108, AMS4333, AMS4342): Lower conductivities of 38.0% to 39.9% are acceptable provided the hardness of the part is not higher than as shown in Table 3. If tensile test

47、ing is specified on the drawing or purchase order and the tensile results and any required stress corrosion criteria in accordance with the applicable material specification are within the required range, the maximum hardness requirements of Table 3 do not apply. (7) Values are for sheet with claddi

48、ng intact. Clad sheet over 0.091 inch (2.31 mm) in nominal thickness can result in incorrect hardness and conductivity values from the cladding thickness. When permitted by the purchaser, removal of the cladding in local areas may be performed to obtain valid hardness and conductivity values. (8) To determine acceptable conductivity values for (a)