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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2015 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4068FAEROSPACEMATERIAL SPECIFICATIONAMS4068 REV. FIssued 1997-07Revised 2015-08Superseding
5、 AMS4068EAluminum Alloy, Drawn Seamless Tubing6.3Cu - 0.30Mn - 0.18Zr - 0.10V - 0.06Ti (2219-T3511)Solution Heat Treated and Stress Relieved by Stretching(Composition similar to UNS A92219)RATIONALEAMS4068F revises Properties (3.3.2, 3.3.3, and the headings of Tables 2 and 3,) and Reports (4.4.1), a
6、nd 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 drawn seamless tubing 0.029 to 0.500 inch (0.74 to 12.70 mm) in nominal wall thickness (See 8.4).1.2 Application This tubing has been used primarily for structures r
7、equiring good fusion weldability and a combination of good strength and resistance to stress-corrosion cracking after precipitation heat treatment, but usage is not limited to such applications.2. APPLICABLE DOCUMENTSThe issue of the following documents in effect on the date of the purchase order fo
8、rms 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 last published issue of tha
9、t 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, Aluminum Alloys and Magnesium Allo
10、y, Wrought Products Except Forging Stock, and Rolled, Forged, or Flash Welded RingsAMS2772 Heat Treatment of Aluminum Alloy Raw MaterialsAS1990 Aluminum Alloy TempersSAE INTERNATIONAL AMS4068F Page 2 of 52.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, W
11、est Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM B660 Packaging/Packing of Aluminum and Magnesium ProductsASTM B666/B666M Identification of Aluminum and Magnesium Alloy Products 2.3 ANSI PublicationsAvailable at http:/webstore.ansi.org/.ANSI H35.2 Dimensional Tolerances for Alum
12、inum Mill ProductsANSI 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 AMS2355:Table 1 - CompositionElement min maxSilicon - 0.20Iron - 0.30Copper 5.8
13、 6.8Manganese 0.20 0.40Magnesium - 0.02Zinc - 0.10Titanium 0.02 0.10Vanadium 0.05 0.15Zirconium 0.10 0.25Other Elements, each - 0.05Other Elements, total - 0.153.2 Condition Solution heat treated and stress relieved by stretching to produce a permanent set of 1/2 to 3%; solution heat treatment shall
14、 be performed in accordance with AMS2772 to the T3511 temper (See AS1990).3.3 Properties Tubing shall conform to the following requirements, determined in accordance with AMS2355 on the mill product:3.3.1 Tensile Properties 3.3.1.1 As Solution Heat Treated and Stress-Relieved Shall be as shown in Ta
15、ble 2.SAE INTERNATIONAL AMS4068F Page 3 of 5Table 2A 2219-T3511 Temper Minimum tensile properties, inch/pound unitsNominal Wall ThicknessInchesTensileStrengthksiYield Strengthat 0.2% OffsetksiElongationin 2 Inches%StripElongationin 2 Inches%Full Section0.029 to 0.049, incl 45.0 26.0 - 12Over 0.049 t
16、o 0.500, incl 45.0 26.0 12 14Table 2B 2219-T3511 Temper Minimum tensile properties, SI unitsNominal Wall ThicknessMillimetersTensileStrengthMPaYield Strengthat 0.2% OffsetMPaElongationin 50.8 mm%StripElongationin 50.8 mm%Full Section0.74 to 1.24, incl 310 179 - 12Over 1.24 to 12.70, incl 310 179 12
17、143.3.2 Response to Temper Conversion (T3511 to T82 Temper)Product in the T3511 temper, after precipitation heat treatment to the T82 temper (See AS1990) in accordance with AMS2772, shall have the properties shown in Table 3.3.3.3 Mechanical property requirements for product outside of the range cov
18、ered by 1.1 shall be agreed upon between purchaser and producer.Table 3A 2219-T82 Temper Minimum tensile properties, inch/pound unitsNominal Wall ThicknessInchesTensileStrengthksiYield Strengthat 0.2% OffsetksiElongationin 2 Inches%StripElongationin 2 Inches%Full Section0.029 to 0.049, incl 60.0 42.
19、0 - 6Over 0.049 to 0.500, incl 60.0 42.0 6 8Table 3B 2219-T82 Temper Minimum tensile properties, SI unitsNominal Wall ThicknessMillimetersTensileStrengthMPaYield Strengthat 0.2% OffsetMPaElongationin 50.8 mm%StripElongationin 50.8 mm%Full Section0.74 to 1.24, incl 414 290 - 6Over 1.24 to 12.70, incl
20、 414 290 6 83.4 Quality Tubing, 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 tubing.3.5 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M.4. QUALITY AS
21、SURANCE 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 requiredtests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the t
22、ubing conforms to specified requirements.SAE INTERNATIONAL AMS4068F Page 4 of 54.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1.1), and tolerances (3.5) are acceptance tests and except for composition, shall be performed on each inspection lot.4.2.2 Per
23、iodic Tests Response to temper conversion (3.3.2) shall be performed at a frequency selected by the vendor unless frequency of testing is specified by the purchaser.4.3 Sampling and Testing Shall be in accordance with AMS2355.4.4 Reports The vendor of tubing shall furnish with each shipment a report
24、 stating that the tubing conforms to the chemical composition and tolerances 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, AMS4068F, siz
25、e, and quantity. The report shall also identify the producer and the size of the mill product.4.4.1 When the product is outside the range covered by 1.1, the report shall contain a statement to that effect.4.5 Resampling and Retesting Shall be in accordance with AMS2355.5. PREPARATION FOR DELIVERY 5
26、.1 Identification Shall be in accordance with ASTM B666/B666M.5.2 Packaging Tubing shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the tubing to ensure carrier acceptance
27、and safe delivery.6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchaser orders.7. REJECTIONS Tubing not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.
28、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 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
29、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 are clarified in ARP1917.SAE INTERNATIONAL AMS4068F Page 5 of 58.3 Dimensions and properties in inch/pound units and the Fahr
30、enheit 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 Purchase documents should specify not less than the following:AMS4068FSize of tubing desiredProperty and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1.Quantity of tubing desired.PREPARED BY AMS COMMITTEE “D“
