SAE AMS 4333D-2015 Aluminum Alloy Die Forgings 6 2Zn - 2 3Cu - 2 2Mg - 0 12Zr (7050-T7452) Solution Heat Treated Compression Stress-Relieved and Overaged (UNS A97050).pdf

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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 2015 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/AMS4333D AEROSPACE MATERIAL SPECIFICATION AMS4333 REV. D Issued 1988-10 Revised 2

5、015-07 Superseding AMS4333C Aluminum Alloy, Die Forgings 6.2Zn - 2.3Cu - 2.2Mg - 0.12Zr (7050-T7452) Solution Heat Treated, Compression Stress-Relieved, and Overaged (Composition similar to UNS A97050) RATIONALE AMS4333D revises Properties (Tables 2A and 3A, 3.3.1.1.3), Fracture Toughness (3.3.1.4,

6、Table 4), and Reports (4.4.2), and is a Five Year Review and update of this specification (See 8.5). 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of die forgings 4.000 inches (102 mm) and under in nominal thickness and of forging stock of any size. 1.2 Application These

7、forgings have been used typically for machined structural parts subject to warpage during machining and requiring high strength and resistance to stress-corrosion cracking, but usage is not limited to such application. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the dat

8、e 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 and no superseding document has been specified, the l

9、ast 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 +1 724-776-4970 (outside USA), www.sae.org. AMS2355 Quality Assurance, Sampling and Testing, Alumin

10、um Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials SAE INTERNATIONAL AMS4333D Page 2 of 7 AMS2808 Identification, Forgings AS1990 Aluminum Alloy Tempers 2.2 ASTM Publications Availab

11、le from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, 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 B660 Packag

12、ing/Packing of Aluminum and Magnesium Products ASTM E399 Linear Elastic Plane-Strain Fracture Toughness (K1c) of Metallic Materials ASTM E1417 Liquid Penetrant Testing 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, Tel:

13、 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 in accordance with AMS235

14、5. Table 1 - Composition Element min max Silicon - 0.12 Iron - 0.15 Copper 2.0 2.6 Manganese - 0.10 Magnesium 1.9 2.6 Chromium - 0.04 Zinc 5.7 6.7 Titanium - 0.06 Zirconium 0.08 0.15 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder SAE INTERNATIONAL AMS4333D Page 3 of 7 3.

15、2 Condition 3.2.1 Die Forgings Solution heat treated in accordance with AMS2772, stress-relieved by compressing to produce a 1 to 5% permanent set, and overaged to the T7452 temper (See AS1990) (See 8.2). 3.2.2 Forging Stock As ordered by the forging manufacturer. 3.3 Properties The product shall co

16、nform to the following requirements, determined in accordance with AMS2355 on the mill produced size. 3.3.1 Die Forgings 3.3.1.1 Tensile Properties 3.3.1.1.1 With Grain Flow Specimens, machined from forgings or from prolongations on such forgings, with axis of specimen in area of gage length varying

17、 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% Offset ksi Elongation in 4D % Up to 2.

18、000, incl 72.0 60.0 9 Over 2.000 to 4.000, incl 71.0 59.0 8 Table 2B - Minimum tensile properties, SI units Nominal Thickness at Time of Heat Treatment Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % Up to 51, incl 496 414 9 Over 51 to 102, incl 490 407 8 3.3.1.

19、1.2 Across Grain Flow 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 tensile properties, i

20、nch/pound units Nominal Thickness at Time of Heat Treatment Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % Up to 2.000, incl 68.0 55.0 5 Over 2.000 to 4.000, incl 67.0 53.0 4 SAE INTERNATIONAL AMS4333D Page 4 of 7 Table 3B - Minimum tensile properties, SI units Nomi

21、nal Thickness at Time of Heat Treatment Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % Up to 51, incl 469 379 5 Over 51 to 102, incl 462 365 4 3.3.1.1.3 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon betwee

22、n purchaser and producer. 3.3.1.1.4 Special Purpose Forgings Tensile specimens cut from special purpose forgings shall meet the tensile property requirements specified on the drawing or as agreed upon by purchaser and vendor. 3.3.1.2 Corrosion Resistance Resistance to stress-corrosion cracking and t

23、o exfoliation-corrosion of the forging heat lot is acceptable if the conditions of 3.3.1.2.1 and 3.3.1.2.2 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 Stress-Corrosion Susceptibility Factor (SCF) Shall

24、be not greater than 32.0 (220), determined by subtracting the electrical conductivity, AA.A percent IACS (12 times BB.B MS/m) from the highest actual with grain yield strength limit, XX.X ksi (YYY MPa). Examples: Inch/Pound Units 72.0 ksi - 38.5% IACS = 33.5 Unacceptable 68.0 ksi - 40.2% IACS = 27.8

25、 Acceptable SI Units 496 MPa - 12 x 22.3 MS/m = 228.4 Unacceptable 469 MPa - 12 x 23.3 MS/m = 189.4 Acceptable 3.3.1.2.3 Forgings not conforming to 3.3.1.2.1 and 3.3.1.2.2 may be given additional overaging and retested to determine conformance to 3.3.1.1, 3.3.1.2.1, and 3.3.1.2.2. 3.3.1.3 Stress-Cor

26、rosion Resistance Specimens, not less than 0.750 inch (19.05 mm) in thickness cut from forgings, shall show no evidence of stress-corrosion cracking when stressed in the short-transverse direction at 35.0 ksi (241 MPa). 3.3.1.4 Fracture Toughness When specified, plane strain fracture toughness shall

27、 be tested in accordance with ASTM E399 and ASTM B645 for forgings 1.000 to 4.000 inches (25.40 to 101.60 mm) inclusive in nominal thickness. A valid KIC meeting the requirements of ASTM E399 or a KQ “useable for lot release” in accordance with ASTM B645 shall meet or exceed the values specified in

28、Table 4. SAE INTERNATIONAL AMS4333D Page 5 of 7 Table 4 Minimum KIC OR KQ “useable for lot release” fracture toughness Nominal Thickness Inches Nominal Thickness Millimeters Specimen Orientation Minimum KIC or KQ ksi inch Minimum KIC or KQ MPa m 1.000 to 3.500, incl Over 3.500 to 4.000, incl 25.40 t

29、o 88.90, incl 88.90 to 101.60, incl L-T T-L S-L L-T T-L S-L 27 19 19 25 19 19 30 21 21 27 21 21 3.3.2 Forging Stock When a sample of stock is forged to a test coupon and heat treated in the same manner as forgings, specimens taken from the heat treated coupon shall conform to the requirements of 3.3

30、.1.1. If specimens taken from the stock prior to forging and after heat treatment in the same manner as forgings conform to the requirements of 3.3.1.1, the tests shall be accepted as equivalent to tests of a forged coupon. The forging stock supplier, however, shall not be required to use unforged c

31、oupons when performing lot conformance testing. 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 detrimental to usage of the product. 3.4.1 When specified, each die forging shall be subjected to u

32、ltrasonic inspection in accordance with ASTM B594 and shall meet Class B acceptance criteria. 3.4.2 When specified, each die forging shall be subjected to fluorescent penetrant testing in accordance with ASTM E1417. Forgings shall be free from surface defects such as seams, laps, bursts, and quench

33、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 Forging stock shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. 4. QUALITY ASSURANC

34、E 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 reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the prod

35、uct conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests The following requirements are acceptance tests and, except for composition, shall be performed on each inspection lot. 4.2.1.1 Composition (3.1) of the product. SAE INTERNATIONAL AMS4333D Page 6 of 7 4.2.1.2

36、Tensile properties (3.3.1.1), corrosion resistance (3.3.1.2), and, when specified, fracture toughness (3.3.1.4), ultrasonic soundness (3.4.1), and fluorescent penetrant inspection (3.4.2). 4.2.1.3 Tolerances (3.5) of forging stock. 4.2.2 Periodic Tests The following requirements are periodic tests a

37、nd shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.2.2.1 Stress-corrosion resistance (3.3.1.3) of forgings. 4.2.2.2 Ability of forging stock to develop required properties (3.3.2). 4.2.2.3 Grain flow of die forgings (3.4.3). 4.3 Sampl

38、ing and Testing Shall be in accordance with AMS2355 and the following: 4.3.1 Tensile specimens machined from forgings shall be excised from the area specified on the engineering drawing. 4.4 Reports 4.4.1 The vendor of the forgings shall furnish with each shipment a report stating that the product c

39、onforms to the composition and tolerances, and when specified, results and standards of nondestructive tests and fracture toughness 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 purc

40、hase order number, inspection lot number(s), AMS4333D, size and quantity. The report shall also identify the producer, the mill product form, and the mill produced size. 4.4.2 When the product size is outside the range covered by 1.1, the report shall contain a statement to that effect. 4.4.3 The ve

41、ndor of forging stock shall furnish with each shipment a report stating that the composition of the stock conforms to specified requirements. This report shall include the purchase order number, inspection lot number, AMS4333D, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance

42、with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification 5.1.1 Forgings In accordance with AMS2808. 5.1.2 Forging Stock As agreed upon by purchaser and vendor. 5.2 Packaging The product shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regula

43、tions pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. SAE INTERNATIONAL AMS4333D Page 7 of 7 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging pu

44、rchase orders. 7. REJECTIONS Product 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 left margin is for the convenience of the user in locating areas where technical revisions, not editorial

45、 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 changes on

46、ly. 8.2 Actual overaging heat treatment may be proprietary. 8.3 Terms used in AMS are clarified in ARP1917. 8.4 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 e

47、quivalents of the primary units and are presented only for information. 8.5 Purchase documents should specify not less than the following: AMS4333D Form and size or part number of product desired Quantity of product desired Ultrasonic inspection and fluorescent penetrant inspection, if required Fracture toughness testing, if required Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1. PREPARED BY AMS COMMITTEE “D”