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/AMS4473A AEROSPACE MATERIAL SPECIFICATION AMS4473 REV. A Issued 2011-09 Revised 2017-03Supersed
5、ing AMS4473 Aluminum Alloy Plate (2624-T39) 4.1Cu 1.4Mg - 0.6Mn Solution Heat Treated, Cold Worked and Naturally Aged (Composition similar to UNS A92624) RATIONALE AMS4473A revises Condition (3.2), Heat Treatment (3.3), Properties (Sections 4, 3.4.2, 3.4.3, and 3.4.4 and Tables 2B and 3), Sampling a
6、nd Testing (4.3), and Reports (4.4.1) and is a Five-Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of plate 0.750 to 1.500 inch (19.05 to 38.10 mm), inclusive, in nominal thickness. 1.2 Application This product has been used ty
7、pically for structural parts requiring a high level of mechanical properties and good damage tolerance, 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 ex
8、tent 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 shall apply. 2.1 SAE Publicatio
9、ns 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. AMS2355 Quality Assurance, Sampling and Testing Aluminum Alloys and Magnesium Alloy Wrought Products (Except Forging Stock)
10、, and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP1917 Clarification of Terms Used in Aerospace Metals Specifications SAE INTERNATIONAL AMS4473A Page 2 of 5 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C7
11、00, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B594 Ultrasonic Inspection of Aluminum-Alloy Wrought Products ASTM B645 Linear-Elastic Plane-Strain Fracture Toughness Testing of Aluminum Alloys ASTM B646 Fracture Toughness Testing of Aluminum Alloys ASTM B660 Packaging of
12、 Aluminum and Magnesium Products ASTM B666/B666M Identification Marking of Aluminum and Magnesium Products ASTM E399 Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials ASTM E561 K-R Curve Determination 2.3 ANSI Accredited Publications Copies of these documents are available onl
13、ine at http:/webstore.ansi.org/. ANSI H35.1/H35.1M Standard Alloy and Temper Designation System For Aluminum ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to
14、the percentages by weight shown in Table 1, determined in accordance with AMS2355. Table 1 - Composition Element Min. Max. Silicon - 0.08 Iron - 0.08 Copper 3.8 4.3 Manganese 0.45 0.7 Magnesium 1.2 1.6 Chromium - 0.05 Zinc - 0.15 Titanium - 0.10 Other Elements, each - 0.05 Other Elements, total - 0.
15、15 Aluminum remainder 3.2 Condition Solution heat treated, cold rolled 10% and stretched 1% after solution heat treatment and naturally aged to produce a T39 temper (see ANSI H35.1/H35.1M). SAE INTERNATIONAL AMS4473A Page 3 of 5 3.3 Heat Treatment Solution heat treatment shall be performed in accord
16、ance with AMS2772 as applicable to 2XXX alloys. The actual practices are considered proprietary. 3.4 Properties Product shall conform to the following requirements, determined on the mill product in accordance with AMS2355. 3.4.1 Tensile Properties Shall be as specified in Table 2. Table 2 Table 2A
17、- Minimum tensile properties, inch/pound units Nominal Thickness Inches Specimen Orientation Tensile Strength ksi Yield Strength At 0.2% Offset ksi Elongation in 2 Inches or 4D % 0.750 to 1.500, incl. Longitudinal Long-Transverse 68.0 71.0 62.0 58.0 11 9 Table 2B - Minimum tensile properties, SI uni
18、ts Nominal Thickness Millimeters Specimen Orientation Tensile Strength MPa Yield Strength At 0.2% Offset MPa Elongation in 2 Inches or 4D % 19.05 to 38.10, incl. Longitudinal Long-Transverse 469 490 427 400 11 9 3.4.2 Plane Strain Fracture Toughness 3.4.2.1 Plane strain fracture toughness, when requ
19、ired by purchaser, shall be tested in accordance with ASTM E399 and ASTM B645. The required test orientations shall be specified by the purchaser. 3.4.2.2 A valid KIc meeting the requirements of ASTM E399 or a KQ “usable for lot release” in accordance with ASTM B645 shall meet or exceed the values s
20、hown in Table 3. Table 3 - Minimum plane strain fracture toughness Nominal Thickness Inches Nominal Thickness Millimeters Specimen Orientation KIc or KQ ksi Inch KIc or KQ MPa m 0.750 to 1.500, incl. 19.05 to 38.10, incl. L-TT-L 39 33 43 36 3.4.3 Plane Stress Fracture Toughness 3.4.3.1 Plane stress
21、fracture toughness (Kapp) shall be tested in accordance with ASTM E561 and ASTM B646. 3.4.3.2 A Kapp value meeting the requirements of ASTM E561 and ASTM B646 shall meet or exceed the values shown in Table 4. SAE INTERNATIONAL AMS4473A Page 4 of 5 Table 4 - Minimum plane stress fracture toughness No
22、minal Thickness Inches Nominal Thickness Millimeters Specimen Orientation ksi Inch MPa m 0.750 to 1.500, incl. 19.05 to 38.10, incl. L-T 106 116 3.4.4 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer. 3.5 Quality Pla
23、te, 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 product. 3.5.1 Each plate 0.750 inch (19.05 mm) and over in nominal thickness shall be ultrasonically inspected in accordance with ASTM B
24、594 and shall meet ultrasonic class A requirements. 3.6 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producers tests and shall be respon
25、sible 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 product conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), long-transverse and lo
26、ngitudinal tensile properties (3.4.1), plane stress fracture toughness (3.4.3), ultrasonic soundness (3.5.1), dimensional tolerances (3.6) and, when required, plane strain fracture toughness (3.4.2) are acceptance tests and, except for composition, shall be performed on each inspection lot. 4.3 Samp
27、ling and Testing Shall be in accordance with AMS2355 and the following: Tensile specimens shall be taken with axis of specimens parallel to each applicable grain flow direction specified in Table 2. 4.3.1 Plane strain fracture toughness testing of the L-T and T-L test orientations of plate shall use
28、 specimens having a width (W) of 3.0 inches (76 mm) and a thickness (B) of full plate thickness. 4.3.2 Plane stress fracture toughness shall be taken and tested in the L-T orientation. The test specimen shall be of the M(T) type and have a width (W) of 16 inches (406 mm), a thickness (B) of 0.25 inc
29、h (6.35 mm) and shall be centered at mid-thickness (T/2). The original crack size (2ao) shall be 4 inches (102 mm). 4.4 Reports The producer of the product shall furnish with each shipment a report stating that the product conforms to the composition, tolerances and ultrasonic inspection; and showin
30、g the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, inspection lot number(s), AMS4473A, size and quantity. The report shall also identify the mill producer and the size of the
31、 mill product. SAE INTERNATIONAL AMS4473A Page 5 of 5 4.4.1 When the product is outside the range covered by 1.1, the report shall contain a statement to that effect. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordan
32、ce with ASTM B666/B666M. 5.2 Packaging The product shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLED
33、GMENT A producer shall mention this specification number in all quotations and when acknowledging purchase orders. 7. REJECTIONS Product not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (l) l
34、ocated 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 of the document title indicates a complete revision of the document, including technical r
35、evisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units
36、and the Celsius temperatures are shown as the approximate equivalents of the primary units, and are presented only for information. 8.3 Purchase documents should specify not less than the following: AMS4473A Size of plate desired Quantity of plate desired Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1 Plane strain fracture toughness testing, (3.4.2) if required by purchaser. PREPARED BY AMS COMMITTEE “D”
