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 theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2009 SAE International All rights reserved. No part of this publication ma
3、y 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: 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS4079GAEROSPACEMATERIALSPECIFICATIONAMS4079G Issued 1959-06 Reaffirmed 2007-04 Revised 2009-10 S
5、uperseding AMS4079F Aluminum Alloy, Drawn, Round, Seamless, Tubing 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-O) Close Tolerance, Annealed (Composition similar to UNS A96061) RATIONALEAMS4079G results from a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a
6、n aluminum alloy in the form of drawn, round, seamless tubing. 1.2 Application This tubing has been used typically for ducts requiring small radius bends and moderate strength after solution and precipitation heat treatment, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The
7、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 has been cancelled
8、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 724-776-4970 (outside USA), www.sae.org. AMS23
9、55 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 AS1990 Aluminum Alloy Tempers Copyright SAE International Provided by IHS under li
10、cense with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4079G Page 2 of 62.2 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 B 660 Packag
11、ing/Packing of Aluminum and Magnesium Products ASTM B 666/B 666M Identification Marking of Aluminum and Magnesium Products 2.3 ANSI Publications Available from American National Standards Institute, Inc., 25 West 43rdStreet, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ANSI H35.2 Dimens
12、ional 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 AMS 2355. TABLE 1 - COMPOSITION Element min max Sili
13、con 0.40 0.8 Iron - 0.7 Copper 0.15 0.40 Manganese - 0.15 Magnesium 0.8 1.2 Chromium 0.04 0.35 Zinc - 0.25 Titanium - 0.15 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition Annealed in accordance with AMS2772, and drawn to meet dimensional tolerances of 3.5. 3
14、.3 Properties Tubing shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size. 3.3.1 As Annealed Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SA
15、E AMS4079G Page 3 of 63.3.1.1 Tensile Properties Shall be shown in Table 2 for tubing having nominal wall thickness of 0.018 to 0.500 inch (0.46 to 12.70 mm), inclusive. TABLE 2 - TENSILE PROPERTIES Property Value Tensile Strength, max 22.0 ksi (152 MPa) Yield Strength at 0.2% Offset, max 14.0 ksi (
16、 97 MPa) Elongation in 2 inches (50.8 mm) or 4D, min Strip 15% Full Section 15% 3.3.1.2 FlatteningTubing, having nominal wall thickness less than 10% of the nominal OD, shall withstand, without cracking, flattening sideways under a load applied gradually at room temperature until the outside dimensi
17、on under load is equal to the flattening factor shown in Table 3 times the nominal wall thickness. TABLE 3 - FLATTENING FACTOR Nominal Wall ThicknessInch Nominal Wall ThicknessMillimeters Factor Up to 0.120, incl Up to 3.05, incl 3 Over 0.120 to 0.238, incl Over 3.05 to 6.05, incl 4 Over 0.238 to 0.
18、500, incl Over 6.05 to 12.70, incl 6 3.3.1.2.1 If tubing does not pass the flattening test of 3.3.1.2, a section of tube not less than 1/2 inch (12.7 mm) in length and including one-third to one-half the circumference of the tube shall withstand, without cracking, bending at room temperature through
19、 an angle of 180 degrees around a diameter equal to the bend factor shown in Table 4 times the nominal wall thickness of the tubing with axis of bend parallel to axis of tube and with inside of tube on inside of bend. TABLE 4 - BENDING PARAMETERS Nominal Wall ThicknessInch Nominal Wall ThicknessMill
20、imeters Factor Up to 0.120, incl Up to 3.05, incl 1 Over 0.120 to 0.238, incl Over 3.05 to 6.05, incl 2 Over 0.238 to 0.500, incl Over 6.05 to 12.70, incl 4 3.3.2 Response to Heat Treatment Tubing shall have the properties shown in Table 5 after being solution and precipitation heat treated in accor
21、dance with AMS2772 to the -T62 temper (See AS1990). TABLE 5A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Wall Thickness Inch TensileStrengthksiYield Strength at 0.2% Offset ksiElongationin 2 inches or 4D %StripElongationin 2 inches or 4D %Full Section 0.025 to 0.049, incl 42.0 35.0 8 10 O
22、ver 0.049 to 0.259, incl 42.0 35.0 10 12 Over 0.259 to 0.500, incl 42.0 35.0 12 14 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4079G Page 4 of 6TABLE 5B - MINIMUM TENSILE PROPERTIES, SI UN
23、ITS Nominal Wall Thickness MillimetersTensileStrengthMPaYield Strength at 0.2% Offset MPaElongation in 50.8 mm or 4D %StripElongation in 50.8 mm or 4D %Full Section 0.64 to 1.24, incl 290 241 8 10 Over 1.24 to 6.58, incl 290 241 10 12 Over 6.58 to 12.70, incl 290 241 12 14 3.4 QualityTubing, as rece
24、ived by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the tubing. Detrimental imperfections include, but are not limited to, cracks, splits, seams, inclusions, or severe cross-hatching (surface breaks) that
25、 cannot be removed by lightly hand-sanding using 180 grit or finer sandpaper. 3.5 Tolerances Except as specified in 3.5.1 for mean diameter and 3.5.2 for wall thickness, tolerances shall conform to all applicable requirements of ANSI H35.2 or ANSI H.35.2M. 3.5.1 Mean Diameter Shall be shown in Table
26、 6. TABLE 6A - TOLERANCES, MEAN DIAMETER, INCH/POUND UNITS Nominal OD InchesTolerance, Inch Plus and Minus 0.500 to 1.000, incl 0.002 Over 1.000 to 3.000, incl 0.003 Over 3.000 to 5.000, incl 0.004 Over 5.000 to 6.000, incl 0.005 Over 6.000 to 8.000, incl 0.008 Over 8.000 to 10.000, incl 0.010 Over
27、10.000 to 12.000, incl 0.013 TABLE 6B - TOLERANCES, MEAN DIAMETER, SI UNITS Nominal OD MillimetersTolerance, Millimeters Plus and Minus 12.70 to 25.40, incl 0.05 Over 25.40 to 76.20, incl 0.08 Over 76.20 to 127.00, incl 0.10 Over 127.00 to 152.40, incl 0.13 Over 152.40 to 203.20, incl 0.20 Over 203.
28、20 to 254.00, incl 0.25 Over 254.00 to 304.80, incl 0.33 3.5.1.1 Mean diameter is the average of two measurements taken at right angles to each other at the same longitudinal location on the tube. 3.5.2 Wall Thickness 7% or 0.002 inch (0.05 mm), whichever is greater, for wall thicknesses under 0.035
29、 inch (0.89 mm); 7% or 0.003 inch (0.08 mm), whichever is greater, for wall thicknesses of 0.035 inch (0.89 mm) and over. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4079G Page 5 of 64. QU
30、ALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of tubing 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 t
31、hat the tubing conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties as annealed (3.3.1.1) and after solution heat treatment and aging (3.3.2.1), quality (3.4), and tolerances (3.5) are acceptance tests and, except for compositio
32、n, shall be performed on each inspection lot. 4.2.2 Periodic Tests Flattening tests (3.3.1.2) are periodic tests 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 AMS2355 and as spe
33、cified herein. 4.4 ReportsThe vendor of the product shall furnish with each shipment a report stating that the product conforms to the composition and tolerances and showing the results of tests to determine conformance to the other acceptance test requirements. This report shall include the product
34、 form, purchase order number, inspection lot number, AMS4079G, size, and quantity. The report shall also include the producer, producer lot number, and the size of the mill product. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall
35、 be in accordance with ASTM B 666/B 666M. 5.2 Packaging5.2.1 Tubing shall be oiled, prior to shipment, with a light corrosion-inhibiting oil. 5.2.2 Tubing shall be prepared for shipment in accordance with ASTM B 660 and in compliance with applicable rules and regulations pertaining to the handling,
36、packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Tubing not conforming to this specification,
37、or to modifications authorized by purchaser, will be subject to rejection. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS4079G Page 6 of 68. NOTES 8.1 A change bar (l) located in the left ma
38、rgin 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. Change bars
39、 and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 Hardness should not be lower than 85 HRE, or equivalent, determined in accordance with ASTM E 18. Hardness has been used to verify that tubing is properly processed, but an out-of-specification
40、hardness number is not always indicative of product with out of specification tensile strength. Further analysis including material composition verification, heat treat process parameter review, and/or tensile property measurement on product with out-of-range hardness may be necessary. 8.3 Terms use
41、d 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 equivalents of the primary units and are presented only for information. 8
42、.5 Purchase documents should specify not less than the following: AMS4079GSize of tubing desired Quantity of tubing desired. 8.6 Similar Specifications Federal WW-T-700/6, Temper O, is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met. PREPARED BY AMS COMMITTEE “D” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
