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/AMS4207C AEROSPACE MATERIAL SPECIFICATION AMS4207 REV. C Issued 1982-07 Revised 2012-01 Reaffir
5、med 2017-07 Superseding AMS4207B Aluminum Alloy Sheet, Alclad 5.7Zn - 2.2Mg - 1.6Cu - 0.22Cr (7475-T61) Solution and Precipitation Heat Treated (Composition similar to A87475) RATIONALE AMS4207C has been reaffirmed to comply with the SAE Five-Year Review policy. 1. SCOPE 1.1 Form This specification
6、covers an aluminum alloy in the form of sheet. 1.2 Application This sheet has been used typically for structural applications requiring a combination of high strength, moderate fatigue strength, and high fracture toughness, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The i
7、ssue 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 specified. When the referenced document has been cancelled a
8、nd 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 Canada) or 724-776-4970 (outside USA), www.sae.org. AMS235
9、5 Quality Assurance, Sampling and Testing of Aluminum Alloys and Magnesium Alloy, Wrought Products (Except Forging Stock), and Rolled, Forged or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials SAE INTERNATIONAL AMS4207C Page 2 of 5 2.2 ASTM Publications Available from ASTM
10、International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 646 Fracture Toughness Testing of Aluminum Alloys ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/ B 666M Identification Marking of Aluminum and M
11、agnesium Products ASTM E 561 K-R Curve Determination 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ANSI H 35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H 35.2M Dimensional Toler
12、ances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355. TABLE 1A - COMPOSITION-CORE (7475) Element min maxSilicon - 0.10Iron - 0.12Copper 1.2 1.9 Manganese - 0.06Magnesium
13、1.9 2.6 Chromium 0.18 0.25Zinc 5.2 6.2 Titanium - 0.06Other Elements, each - 0.05Other Elements, total - 0.15Aluminum remainder TABLE 1B - COMPOSITION-CLADDING (7072) Element min maxSilicon + Iron - 0.7 Copper - 0.10Manganese - 0.10Magnesium - 0.10Zinc 0.8 1.3 Other Elements, each - 0.05Other Elemen
14、ts, total - 0.15Aluminum remainder SAE INTERNATIONAL AMS4207C Page 3 of 5 3.2 Condition Solution and precipitation heat treated in accordance with AMS2772. 3.3 Properties Sheet 0.040 inch (1.02 mm) and over in nominal thickness shall conform to the following requirements, determined in accordance wi
15、th AMS2355. Tensile properties and critical-stress-intensity factor requirements for sheet under 0.040 inch (1.02 mm) in nominal thickness shall be as agreed upon by purchaser and vendor. 3.3.1 Tensile Properties Shall be as specified in Table 2, determined in the long-transverse direction. TABLE 2A
16、 - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness Inch Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches % 0.040 to 0.062, incl 69.0 59.0 9 Over 0.062 to 0.187, incl 70.0 60.0 9 Over 0.187 to 0.249, incl 72.0 61.0 9 TABLE 2B - MINIMUM TENSILE PROPERTIES, S
17、I UNITS Nominal Thickness Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm % 1.02 to 1.57, incl 476 407 9 Over 1.57 to 4.75, incl 483 414 9 Over 4.75 to 6.32, incl 496 421 9 3.3.2 Fracture Toughness Plane stress fracture toughness (Kc) shall be not lower than
18、values shown in Table 3, determined in the T-L direction in accordance with ASTM B 646 and ASTM E 561 or by other method acceptable to purchaser. TABLE 3 - T-L KCMINIMUM FRACTURE TOUGHNESS REQUIREMENTS Nominal Thickness Inch Nominal Thickness Millimeters Kc, minimum ksi inchKc, minimum MPa m0.040 to
19、 0.125, incl 1.02 to 3.18, incl 75 82.4 Over 0.125 to 0.249, incl Over 3.18 to 6.32, incl 60 66.0 3.3.3 Bending Sheet 0.008 to 0.249 inch (0.20 to 6.32 mm), incl, in nominal thickness shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter equ
20、al to the bend factor shown in Table 4 times the nominal thickness of the sheet with axis of bend parallel to the direction of rolling. TABLE 4 - BENDING TEST PARAMETERS Nominal Thickness Inch Nominal Thickness Millimeters Bend Factor 0.008 to 0.020, incl 0.20 to 0.51, incl 6 Over 0.020 to 0.063, in
21、cl Over 0.51 to 1.60, incl 7 Over 0.063 to 0.091, incl Over 1.60 to 2.31, incl 8 Over 0.091 to 0.125, incl Over 2.31 to 3.18, incl 9 Over 0.125 to 0.249, incl Over 3.18 to 6.32, incl 10 SAE INTERNATIONAL AMS4207C Page 4 of 5 3.3.4 Cladding Thickness After rolling, the average cladding thickness per
22、side shall be as shown in Table 5: TABLE 5 - CLADDING THICKNESS Nominal Sheet Thickness Inch Nominal Sheet Thickness Millimeters % of Sheet Thickness Nominal % of Sheet Thickness Min Average Up to 0.062, incl Up to 1.57, incl 4 3.2 Over 0.062 to 0.187, incl Over 1.57 to 4.75, incl 2.5 2.0 Over 0.187
23、 to 0.249, incl Over 4.75 to 6.32, incl 1.5 1.2 3.4 Quality Sheet, 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 sheet. 3.5 Tolerances Shall conform to all applicable requirements of ANSI
24、 H35.2 / ANSI H35.2M. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the sheet shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Results of such tests shall be reported to the purchaser as required by 4.4.
25、Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the sheet conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1), fracture toughness (3.3.2) when required by p
26、urchaser, and dimensional tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Bending (3.3.3) and cladding thickness (3.3.4) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing
27、 is specified by purchaser. 4.3 Sampling Shall be in accordance with AMS2355 and the following: 4.3.1 Sampling for fracture toughness testing (3.3.2) shall be as agreed upon by vendor and purchaser. 4.4 Reports The vendor of the sheet shall furnish with each shipment a report stating that the produc
28、t conforms to the chemical composition, tolerances, and nondestructive tests, and showing 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), AMS4207C,
29、 size, and quantity. The report shall also identify the producer, the product form, and the size of the mill product. SAE INTERNATIONAL AMS4207C Page 5 of 5 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with AS
30、TM B 666/ B 666M. 5.2 Protective Treatment Product shall be protected from damage during storage and shipment by a method determined by vendor unless specified by purchaser. Examples of typical protective methods include but are not limited to interleaving with paper or oiling of the surface. 5.3 Pa
31、ckaging and Preservation Products shall be prepared for shipment in accordance with ASTM B 660 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. ACKNOWLEDGMENT A vendor s
32、hall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Sheet not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (l) located in the l
33、eft 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 revisions. Chang
34、e 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. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Cel
35、sius 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: AMS4207C Size of sheet desired Quantity of sheet desired Whether fracture toughness (3.2.2) is required. PREPARED BY AMS COMMITTEE “D”
