SAE AMS 4617A-2017 Aluminum Alloy Extrusions 5 6Zn - 2 5Mg - 1 6Cu - 0 23Cr (7075-T73 7075-T73511 7075-T73510) Solution Heat Treated Stress Relieved by Stretching when required and.pdf

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/AMS4617A AEROSPACE MATERIAL SPECIFICATION AMS4617 REV. A Issued 2011-07 Revised 2017-04 Superse

5、ding AMS4617 Aluminum Alloy, Extrusions 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T73, 7075-T73511, 7075-T73510) Solution Heat Treated, Stress Relieved by Stretching when required, and Overaged (Composition similar to UNS A97075) RATIONALE AMS4617A revises Condition (3.2), Properties (3.3.1.4), and Repor

6、ts (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 extruded bars, rods, wire, shapes, and tubing 0.040 to 4.499 inches (1.01 to 114.27 mm) inclusive, in nominal diameter or least thickness, and with are

7、as up to 32 in2 (206 cm2), inclusive (see 8.5). 1.2 Application These extrusions have been used typically for parts subject to excessive warpage during machining and for parts requiring high strength and resistance to stress-corrosion cracking, but usage is not limited to such applications. 2. APPLI

8、CABLE 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 specified. When the referenced document

9、 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 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside U

10、SA), www.sae.org. AMS2355 Quality Assurance, Sampling and Testing 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 ARP1917 Clarification of Terms Used in Aerospace Metals Spec

11、ifications SAE INTERNATIONAL AMS4617 A Page 2 of 7 2.2 ASTM Publications Available 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 B660 Packaging/

12、Packing of Aluminum and Magnesium Products ASTM B666/B666M Identification Marking of Aluminum and Magnesium Products ASTM E10 Brinell Hardness of Metallic Materials 2.3 ANSI Accredited Publications Copies of these documents are available online at http:/webstore.ansi.org. ANSI H35.1/H35.1M Standard

13、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 the percentages by weight shown in Table 1, determined in ac

14、cordance with AMS2355. Table 1 - Composition Element Min Max Silicon - 0.40 Iron - 0.50 Copper 1.2 2.0 Manganese - 0.30 Magnesium 2.1 2.9 Chromium 0.18 0.28 Zinc 5.1 6.1 Titanium - 0.20 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition Solution heat treated, s

15、tress relieved by stretching to produce a nominal permanent set of 1.5%, but not less than 1% nor more than 3%, and precipitation heat treated to the T73511 or T73510 temper (refer to ANSI H35.1/H35.1M). Heat treatments shall be performed in accordance with AMS2772. 3.2.1 The T73511 temper shall be

16、supplied unless T73510 is specified. When T73 is specified, the stress relief by stretching may be omitted and the T73 temper supplied if the stretching is not practical due to the shape of the extrusion. 3.2.2 Extrusions supplied in the T73 or T73511 temper may receive minor straightening, after st

17、retching, of an amount necessary to meet the requirements of 3.5. SAE INTERNATIONAL AMS4617 A Page 3 of 7 3.2.3 Extrusions supplied in the T73510 temper shall receive no straightening after stretching. 3.2.4 Extrusions shall be supplied with an as-extruded surface finish; light polishing to remove m

18、inor surface imperfections is permissible provided such imperfections can be removed within the dimensional tolerances. 3.3 Properties Extrusions shall conform to the following requirements, determined on the mill produced size in accordance with AMS2355: 3.3.1 Tensile Properties 3.3.1.1 Longitudina

19、l Shall be as shown in Table 2. Table 2 Table 2A - Minimum longitudinal tensile properties, inch/pound units Nominal Diameter or Least Thickness and Area (Bars, Rods, Wire, Shapes) or Nominal Wall Thickness and Area (Tubing) Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in

20、 2 Inches or 4D % 0.040 to 0.061, incl Area up to 20 in2, incl 67.0 59.0 8 0.062 to 0.249, incl Area up to 20 in2, incl 68.0 58.0 7 Over 0.249 to 1.499, incl Area up to 25 in2, incl 70.0 61.0 8 Over 1.499 to 2.999, incl Area up to 25 in2, incl 69.0 59.0 8 Over 2.999 to 4.499, incl Area up to 20 in2,

21、 incl 68.0 57.0 7 Area over 20 to 32 in2, incl 65.0 55.0 7 Table 2B - Minimum longitudinal tensile properties, SI units Nominal Diameter or Least Thickness and Area (Bars, Rods, Wire, Shapes) or Nominal Wall Thickness and Area (Tubing) Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset M

22、Pa Elongation in 50.8 mm or 4D % 1.01 to 1.56, incl Area up to 129 cm2, incl 462 407 8 1.57 to 6.32, incl Area up to 129 cm2, incl 469 400 7 Over 6.32 to 38.07, incl Area up to 161 cm2, incl 483 421 8 Over 38.07 to 76.17, incl Area up to 161 cm2, incl 476 407 8 Over 76.17 to 114.27, incl Area up to

23、129 cm2, incl 469 393 7 Area over 129 to 206 cm2, incl 448 379 7 SAE INTERNATIONAL AMS4617 A Page 4 of 7 3.3.1.2 Long-Transverse Rectangular bars and shapes, tested in the long-transverse direction, shall meet the requirements of Table 3. Table 3 Table 3A - Minimum long-transverse tensile properties

24、, inch/pound units Nominal Thickness and Area Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D % 0.062 to 0.249, incl Area up to 20 in2, incl 65.0 55.0 3 Over 0.249 to 0.499, incl Area up to 20 in2, incl 67.0 58.0 4 Over 0.499 to 0.749, incl Area up to 25 in

25、2, incl 66.0 57.0 4 Over 0.749 to 1.499, incl Area up to 25 in2, incl 66.0 56.0 4 Over 1.499 to 2.999, incl Area up to 25 in2, incl 63.0 52.0 4 Over 2.999 to 4.499, incl Area up to 20 in2, incl 60.0 48.0 3 Area over 20 to 32 in2, incl 57.0 46.0 3 Table 3B - Minimum long-transverse tensile properties

26、, SI units Nominal Thickness and Area Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % 1.57 to 6.32, incl Area up to 129 cm2, incl 448 379 3 Over 6.32 to 12.67, incl Area up to 129 cm2, incl 462 400 4 Over 12.67 to 19.02, incl Area up to 161 cm2, incl

27、455 393 4 Over 19.02 to 38.07, incl Area up to 161 cm2, incl 455 386 4 Over 38.07 to 76.17, incl Area up to 161 cm2, incl 434 358 4 Over 76.17 to 114.27, incl Area up to 129 cm2, incl 414 331 3 Area over 129 to 206 cm2, incl 393 317 3 SAE INTERNATIONAL AMS4617 A Page 5 of 7 3.3.1.3 Short-Transverse

28、Bars, rods, and shapes, tested in the short-transverse direction, shall meet the requirements of Table 4. Table 4 Table 4A - Minimum short-transverse tensile properties, inch/pound units Nominal Diameter or Least Thickness, and Area Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elong

29、ation in 2 Inches or 4D % 1.500 to 2.999, incl Area up to 25 in2, incl 60.0 48.0 2 Over 2.999 to 4.499, incl Area up to 20 in2, incl 57.0 44.0 2 Area over 20 to 32 in2, incl 54.0 41.0 2 Table 4B - Minimum short-transverse tensile properties, SI units Nominal Thickness and Area Millimeters Tensile St

30、rength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % 38.10 to 76.17, incl Area up to 161 cm2, incl 414 331 2 Over 76.17 to 114.27, incl Area up to 161 cm2, incl 393 303 2 Area over 129 to 206 cm2, incl 372 283 2 3.3.1.4 Mechanical property requirements for product outside of th

31、e range covered by 1.1 shall be agreed upon between purchaser and producer. 3.3.2 Conductivity Shall be as follows, determined on the surface of the sample: 3.3.2.1 If the conductivity is 40.0% IACS (International Annealed Copper Standard) (23.2 ms/m) or higher and the longitudinal tensile propertie

32、s meet specified requirements, the product is acceptable. 3.3.2.2 If the conductivity is 38.0 to 39.9% IACS (22.0 to 23.1 ms/m), if the longitudinal tensile properties meet specified requirements, and if the longitudinal yield strength does not exceed the specified minimum by more than 11.9 ksi (82

33、MPa), the product is acceptable. 3.3.2.3 If the conductivity is below 40.0% IACS (23.2 ms/m) and the longitudinal yield strength exceeds the specified minimum by more than 11.9 ksi (82 MPa), the product shall be given additional overaging heat treatment. If, after such treatment, the product meets t

34、he requirements of 3.3.1 and 3.3.2.1 or 3.3.2.2, the product is acceptable. 3.3.2.4 If the conductivity is below 38.0% IACS (22.0 ms/m), the product is not acceptable and shall be reprocessed regardless of property level. 3.3.3 Stress-Corrosion Cracking Resistance Specimens, cut from product 0.750 i

35、nch (19.05 mm) and over in nominal thickness, shall show no evidence of stress-corrosion cracking when stressed in the short-transverse (perpendicular to grain flow) direction to 75% of the specified minimum longitudinal (parallel to grain flow) yield strength. SAE INTERNATIONAL AMS4617 A Page 6 of

36、7 3.4 Quality Extrusions, 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 extrusions. 3.4.1 When specified, extrusions shall be subjected to ultrasonic inspection in accordance with ASTM B5

37、94 and shall meet the following requirements. 3.4.1.1 Extrusions 0.500 to 1.499 inches (12.70 to 38.07 mm), inclusive, in nominal thickness, and with a maximum width-to-thickness ratio of 10 to 1 shall meet discontinuity Class B. 3.4.1.2 Extrusions over 1.499 inches (38.07 mm) in nominal thickness,

38、and with a maximum width-to-thickness ratio of 10 to 1, shall meet discontinuity Class A. 3.5 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 extrusions shall supply all samples fo

39、r producers 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 extrusions conform to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Co

40、mposition (3.1), longitudinal tensile properties (3.3.1.1), conductivity (3.3.2), ultrasonic inspection (3.4.1) when specified, and tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Transverse tensile properties (3.3.1.2 and 3.3.1

41、.3), and stress-corrosion cracking resistance (3.3.3) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. 4.4 Reports The producer of extrusions shall fu

42、rnish with each shipment a report stating that the extrusions conform to the composition and showing the results of tests to determine conformance to the other acceptance test requirements and, when performed, to the periodic test requirements. This report shall include the purchase order number, lo

43、t number, AMS4617A, size or section identification number, and quantity. The report shall also identify the mill producer and the size of the mill product. 4.4.1 When the product size is outside of the range covered by 1.1, the report shall contain a statement to that effect. 4.5 Resampling and Rete

44、sting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B666/B666M. SAE INTERNATIONAL AMS4617 A Page 7 of 7 5.2 Packaging Extrusions shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules

45、and regulations pertaining to the handling, packaging, and transportation of the extrusions to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer shall mention this specification number in all quotations and when acknowledging purchase orders. 7. REJECTIONS Extrusions not conf

46、orming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made t

47、o 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 only. 8.2 Terms used in AMS

48、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 Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. 8.4 Hardne

49、ss of extrusions should be not lower than 125HB/10/500 or 130HB/10/1000, determined in accordance with ASTM E10. Hardness has been used to verify that extrusions are properly processed, but an out-of-range hardness number is not always indicative of extrusions with out-of-specification tensile properties. Further analysis, including material composition verification, heat treat process parameter review,