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 2011 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/AMS4403 AEROSPACE MATERIAL SPECIFICATION AMS 4403 Issued 2006-08 Reaffirmed 2011-
5、11 Aluminum Alloy, Die Forgings 7.5Zn - 1.6Cu - 1.5Mg - 0.12Zr (7085-T7452) Solution Heat Treated, Compression Stress-Relieved, and Overaged (Composition similar to UNS A97085) RATIONALE This document has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form This specific
6、ation covers an aluminum alloy in the form of die forgings 12 inches (305 mm) and under in nominal thickness and of forging stock. 1.2 Application These forgings have been used typically for machined structural parts subject to warpage during machining and requiring high strength and resistance to s
7、tress-corrosion cracking, but usage is not limited to such application. 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 docu
8、ment 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 Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 150
9、96-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 2355 Quality Assurance Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS 2808 Identification, Forgings AM
10、S 2772 Heat Treatment of Aluminum Alloy Raw Materials AS1990 Aluminum Alloy Tempers Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4403 Page 2 of 7 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700
11、, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 594 Ultrasonic Inspection of Aluminum-Alloy Wrought Products for Aerospace Applications ASTM B 645 Plane Strain Fracture Toughness Testing of Aluminum Alloys ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products AS
12、TM E 399 Plane-Strain Fracture Toughness of Metallic Materials ASTM E 1417 Liquid Penetrant Examination ASTM G 47 Determining Susceptibility to Stress-Corrosion cracking of 2xxx and 7xxx Aluminum Alloys 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street,
13、New York, NY 10036, Tel: 212-642-4900, www.ansi.org. 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 the percentages by weight shown in Table 1, determined i
14、n accordance with AMS 2355. TABLE 1 - COMPOSITION Element min maxSilicon - 0.06Iron - 0.08Copper 1.3 2.0 Manganese - 0.04Magnesium 1.2 1.8 Chromium - 0.04Zinc 7.0 8.0 Titanium - 0.06Zirconium 0.08 0.15Other Elements, each - 0.05Other Elements, total - 0.15Aluminum remainder 3.2 Condition 3.2.1 Die F
15、orgings Solution heat treated in accordance with AMS 2772, stress-relieved by compressing to produce a 1 to 5% permanent set, and overaged to the T7452 temper (See AS1990). Solution heat-treat and artificial age practices are proprietary. 3.2.2 Forging Stock As ordered by the forging manufacturer an
16、d shall comply with the composition requirements of Table 1. Material shall be free of conditions that are detrimental to the finished product. 3.3 Properties The product shall conform to the following requirements, determined in accordance with AMS 2355 on the mill produced size. Provided by IHSNot
17、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4403 Page 3 of 7 3.3.1 Die Forgings 3.3.1.1 Tensile Properties Shall be as follows: 3.3.1.1.1 With Grain Flow (Longitudinal) Specimens, machined from forgings or from prolongations on such forgings, with axis of
18、specimen in area of gage length varying not more than 15 degrees from parallel to the forging flow lines, shall have the properties shown in Table 2. TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness At Time Of Heat Treatment Inches Tensile Strength ksi Yield Strength at 0.2%
19、 Offset ksi Elongation in 4D % 1.000 to 2.000, incl 72.0 65.0 10 2.001 to 4.000, incl 72.0 65.0 9 4.001 to 6.000, incl 72.0 65.0 9 6.001 to 8.000, incl 72.0 65.0 8 8.001 to 10.000, incl 72.0 65.0 7 10.001 to 12.000, incl 72.0 65.0 7 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness a
20、t Time of Heat Treatment Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % 25 to 51, incl 496 448 10 Over 51 to 102, incl 496 448 9 Over 102 to 152, incl 496 448 9 Over 152 to 203, incl 496 448 8 Over 203 to 254, incl 496 448 7 Over 254 to 305, incl 496 448 7 3.3.
21、1.1.2 Across Grain Flow (Long Transverse) Specimens, machined from forgings or from prolongations on such forgings, with axis of specimen in area of gage length varying not more than 15 degrees from perpendicular to the forging flow lines, shall have properties shown in Table 3. TABLE 3A - MINIMUM T
22、ENSILE PROPERTIES, INCH/POUND UNITS Nominal Thickness at Time of Heat Treatment Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % 1.000 to 2.000, incl 70.0 62.0 8 2.001 to 4.000, incl 70.0 62.0 7 4.001 to 6.000, incl 70.0 62.0 7 6.001 to 8.000, Incl 70.0 62.0 6 8.001 t
23、o 10.000, incl 70.0 62.0 5 10.001 to 12.000, incl 70.0 62.0 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4403 Page 4 of 7 TABLE 3B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Thickness at Time of Heat Treatment Millimeters Tensile Str
24、ength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % 25 to 51, incl 483 427 8 Over 51 to 102, incl 483 427 7 Over 102 to 152, incl 483 427 7 Over 152 to 203, incl 483 427 6 Over 203 to 254, incl 483 427 5 Over 254 to 305, incl 483 427 4 3.3.1.1.3 Across Grain Flow (Short Transverse) Specim
25、ens, machined from forgings or from prolongations on such forgings, with axis of specimen in area of gage length varying not more than 15 degrees from perpendicular to the forging flow lines, shall have properties shown in Table 4. TABLE 4A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Thic
26、kness at Time of Heat Treatment Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % 2.001 to 4.000, incl 70.0 59.0 5 4.001 to 6.000, incl 70.0 59.0 4 6.001 to 8.000, incl 70.0 59.0 4 8.001 to 10.000, incl 70.0 59.0 3 10.001 to 12.000, incl 70.0 59.0 3 TABLE4B - MINIMUM T
27、ENSILE PROPERTIES, SI UNITS Nominal Thickness at Time of Heat Treatment Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % 51 to 102, incl 483 407 5 Over 102 to 152, incl 483 407 4 Over 152 to 203, incl 483 407 4 Over 203 to 254, incl 483 407 3 Over 254 to 305, inc
28、l 483 407 3 3.3.1.2 Corrosion Resistance Resistance to stress-corrosion cracking of the forging heat lot is acceptable if the conditions of 3.3.1.2.1 are met. 3.3.1.2.1 Electrical Conductivity Shall be not lower than 38.0% IACS (International Annealed Copper Standard) (22.0 MS/m). 3.3.1.2.2 Forgings
29、 not conforming to 3.3.1.2.1 may be given additional overaging and retested to determine conformance to 3.3.1.1 and 3.3.1.2.1 3.3.1.3 Stress-Corrosion Resistance Specimens, not less than 0.750 inch (19.05 mm) in thickness cut from forgings tested in accordance with ASTM G 47, shall show no evidence
30、of stress-corrosion cracking when stressed in the short-transverse direction at 35.0 ksi (241 MPa). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4403 Page 5 of 7 3.3.1.4 Fracture Toughness When specified, forgings shall meet the values of
31、KICshown in Table 5, determined in accordance with ASTM B 645. TABLE 5 - KICMINIMUM VALUES Nominal Thickness Inches Nominal Thickness Millimeters Specimen Orientation Minimum KICksi inch Maximum KICMPa m Over 1.000 to 2.000, incl Over 2.000 to 4.000, incl Over 4.000 to 6.000, incl Over 6.000 to 8.00
32、0, incl 25 to 51, incl Over 51 to 102, incl Over 102 to 152, incl Over 152 to 203, incl L-T T-L L-T T-L S-L L-T T-L S-L L-T T-L S-L 31 26 29 24 23 27 22 22 25 20 20 34 29 32 26 25 30 24 24 27 22 22 3.3.1.4.1 All KQvalues shall meet all requirements of ASTM E 399 for KICexcept that invalid KQvalues w
33、hich are meaningful as defined by ASTM B 645 and which equal or exceed the KIClimit (3.3.1.4) shall be evidence of acceptable fracture toughness. 3.4 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from conditions d
34、etrimental to usage of the product. 3.4.1 When specified, each die forging shall be subjected to ultrasonic inspection in accordance with ASTM B 594 and shall meet Class B acceptance criteria. 3.4.2 When specified, each die forging shall be subjected to fluorescent penetrant inspection in accordance
35、 with ASTM E 1417. Forgings shall be free from surface defects such as seams, laps, bursts, and quench cracks. 3.4.3 Grain flow of die forgings, except in areas which contain end grain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow. 3.5 Tolerances Forgi
36、ng stock shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of forgings shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserv
37、es 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), tensile properties (3.3.1.1), electrical conductivity (3.3.1.2.1), tolerances (3.5), and
38、 when specified, ultrasonic inspection (3.4.1), fracture toughness (3.3.1.4) and fluorescent penetrant inspection (3.4.2) are acceptance tests and, except for composition, shall be performed on each lot. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
39、,-SAE AMS 4403 Page 6 of 7 4.2.2 Periodic Tests Stress corrosion cracking (3.3.1.3), is a periodic test and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and testing Shall be in accordance with AMS 2355. 4.3.1 Tensile spe
40、cimens machined from forgings shall be excised from the area specified on the engineering drawing. 4.4 Reports The vendor of the forging shall furnish with each shipment a report stating that the product conforms to the composition, tensile properties, electrical conductivity, tolerances and when sp
41、ecified, ultrasonic inspection, fluorescent penetrant inspection, fracture toughness and showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements and stating that the final product conforms to the other technical requirements. T
42、his report shall include the forging producer, purchase order number, inspection lot number, AMS 4403 and the section identification number. 4.4.1 The vendor of forging stock shall furnish with each shipment a report stating that the chemical composition of the stock conforms to specified requiremen
43、ts. This report shall include the purchase order number, inspection lot number, AMS 4403, size, and quantity. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be as follows: 5.1.1 Forgings In accordance with AMS 2808. 5.1.2 Forging Stock As agreed upon by purchaser and vendor. 5.2 Packaging The
44、product 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 shall mention this specific
45、ation 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 Terms used in AMS are clarified in ARP1917. Provided by IHSNot for ResaleNo repro
46、duction or networking permitted without license from IHS-,-,-SAE AMS 4403 Page 7 of 7 8.2 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 prim
47、ary units and are presented only for information. 8.3 Purchase documents should specify not less than the following: AMS 4403 Form and size or part number of product desired Quantity of product desired If Ultrasonic Inspection is required If Fracture Toughness testing is required If Fluorescent Penetrant Inspection is required. PREPARED BY AMS COMMITTEE “D” Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
