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/AMS4071MAEROSPACEMATERIALSPECIFICATIONAMS4071M Issued 1945-05 Reaffirmed 2006-10 Revised 2009-11 S
5、uperseding AMS4071L Aluminum Alloy, Drawn, Round, Seamless Hydraulic Tubing 2.5Mg 0.25Cr (5052-O) Annealed(Composition similar to UNS A95052) RATIONALEAMS 4071M results from a Five Year Review and update of this specification. 1. SCOPE 1.1 FormThis specification covers an aluminum alloy in the form
6、of drawn, round seamless tubing. 1.2 ApplicationThis tubing has been used typically for parts, such as hydraulic systems and fuel and oil lines, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order for
7、ms 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 that
8、 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. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy,
9、 Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4071M Page 2 of 62.2 ASTM Publications Available from ASTM I
10、nternational, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E 215 Standardizing Equipment for Electromagnetic Testing of Seamless Aluminum- Alloy Tube ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM B 666/B 666M Ide
11、ntification of Aluminum and Magnesium Alloy Products 2.3 ANSI Publications Available from American National Standards Institute, Inc., 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H35.2M Dimensional T
12、olerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355. TABLE 1 - COMPOSITION Element min max SiliconIronCopperManganeseMagnesiumChromiumZincOther Elements, each Other E
13、lements, total Aluminum-2.20.15-remainder0.250.400.100.102.80.350.100.050.153.2 Condition Annealed.3.2.1 Tubing shall be supplied unground with an as-drawn surface finish, unless otherwise specified. 3.3 PropertiesTubing shall conform to the following requirements, determined in accordance with AMS2
14、355 on the mill produced size. 3.3.1 Tensile Properties Shall be as shown in Table 2 for tubing having nominal wall thickness of 0.010 to 0.450 inch (0.25 to 11.43 mm), inclusive.TABLE 2 - TENSILE PROPERTIES Property Value Tensile Strength Yield Strength at 0.2% Offset, min 25.0 to 35.0 ksi (172 to
15、241 MPa) 10.0 ksi (68.9 MPa) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4071M Page 3 of 63.3.2 Flattening Tubing having nominal wall thickness less than 10% of the nominal OD shall withs
16、tand, without cracking, flattening sideways under a load applied gradually at room temperature until the outside dimension under load is equal to 3 times the nominal wall thickness. 3.3.2.1 If tubing does not pass the flattening test of 3.3.2, a section of tube not less than 1/2 inch (12.7 mm) in le
17、ngth and embracing one-third to one-half the circumference of the tube shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter equal to the nominal wall thickness of the tubing with axis of bend parallel to axis of tube and with inside of tube
18、 on inside of bend. 3.3.3 FlarabilityTubing with a nominal OD of 0.125 to 0.312 inch (3.18 to 7.92 mm) and wall thickness up to 0.035 inch (0.89 mm) and tubing with a nominal OD of 0.313 to 0.375 inch (7.95 to 9.52 mm) and nominal wall thickness not greater than 0.049 inch (1.24 mm) shall withstand
19、being double-flared (See 8.3), and tubing with nominal OD over 0.375 inch (9.52 mm) shall withstand being single-flared without formation of cracks or other visible defects by being forced axially, at room temperature, with steady pressure over a hardened and polished tapered steel pin having a 74-
20、degree included angle to produce a flare having a permanent expanded OD not less than specified in Table 3. TABLE 3A - MINIMUM FLARABILITY, INCH/POUND UNITS Nominal OD Inch Expanded OD Inch Nominal OD InchesExpanded OD Inches0.1250.1880.2500.3120.3750.5000.6250.7500.2240.3020.3590.4210.4840.6560.781
21、0.9371.0001.2501.5001.7502.0002.5003.0001.1871.5001.7212.1062.3562.8563.356TABLE 3B - MINIMUM FLARABILITY, SI UNITS Nominal OD MillimetersExpanded OD MillimetersNominal OD MillimetersExpanded OD Millimeters3.18 4.78 6.35 7.92 9.52 12.7015.8819.055.69 7.67 9.12 10.6912.2916.6619.8423.8025.4031.7538.1
22、044.4550.8063.5076.2030.1538.1043.7153.4959.8472.5485.243.3.3.1 Tubing with nominal OD between any two standard sizes shown in Table 3 shall take the same percentage flare as shown for the larger of the two sizes. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo rep
23、roduction or networking permitted without license from IHS-,-,-SAE AMS 4071M Page 4 of 63.3.4 Hydraulic Strength Tubing shall withstand an internal hydrostatic pressure (P), based on Equation 1, without developing leaks and without an increase in mean diameter of more than 0.2% =+2222DdPSDd(Eq.1) wh
24、ereS = Minimum Yield Strength (10.0 ksi (68.9 MPa) D = Maximum OD (nominal OD plus tolerance) d = Maximum ID (D minus twice the minimum wall thickness) 3.3.4.1 Mean diameter is the average of two diameters at right angles to each other in the same transverse plane; measurements before and after test
25、ing should be taken at substantially the same location. 3.4 QualityTubing, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from internal and external imperfections detrimental to usage of the tubing. 3.4.1 A polished and etched cross-se
26、ction of a tube shall show no evidence of cracks, seams, or folds when examined at 100X magnification. 3.4.2 Detrimental imperfections include, but are not limited to, cracks, splits, seams, inclusions, or severe cross-hatching (surface breaks) that cannot be removed by light hand-sanding, using 180
27、 grit or finer sandpaper. 3.4.3 Leak Test Each length of tubing shall be tested for leaks in accordance with either 3.4.3.1 or 3.4.3.2; the method of test shall be at the option of the vendor unless purchaser specifies the method of test. 3.4.3.1 Immersion Test A tube, immersed in water or other sui
28、table liquid while an air pressure of 250 psi (1724 kPa) is applied to the inside of the tube and held for not less than 5 seconds, shall show no leakage as indicated by bubbles in the immersion fluid. 3.4.3.2 Eddy Current Test Secondary reference standards in accordance with ASTM E 215 shall be use
29、d to set threshold levels. Tubes exhibiting eddy current responses equivalent to or smaller than those obtained from the daholes are automatically acceptable. Tubes with responses equivalent to or greater than dbholes are automatically not acceptable. Indications between the daand dbhole sizes shall
30、 be reviewed by the cognizant authority for disposition. 3.5 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or ANSI H35.2M. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE
31、AMS 4071M Page 5 of 64. QUALITY 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 de
32、emed necessary to ensure that the tubing conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1), leak test (3.4.3) and tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each inspectio
33、n lot. 4.2.2 Periodic Tests Flattening (3.3.2), flarability (3.3.3), and hydraulic strength (3.3.4) are periodic tests and shall be performed at a frequencyselected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355 and t
34、he following: 4.3.1 Specimens for flarability test shall be full tubes or sections cut from a tube. The end of the specimen to be flared shall be cut square, with the cut end smooth and free from burrs but, except for sizes 0.375 inch (9.52 mm) and under, in nominal diameter, not rounded. 4.4 Report
35、s The vendor of tubing shall furnish with each shipment a report stating that the tubing conforms to the composition and showing the numerical results of tests to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, inspection lot numb
36、er, AMS4071M, size, and quantity. The report shall also include the producer and the size of the mill product. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 IdentificationShall be in accordance with ASTM B 666/B 666M. 5.2 Packaging5.2.1 Tubing shal
37、l be coated, 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, packaging, and transportation of the tubing to ensure carrier acceptanc
38、e and safe delivery. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 4071M Page 6 of 66. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotati
39、ons and when acknowledging purchase orders. 7. REJECTIONS Tubing 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 tech
40、nical 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 and (R) are not used in original publications, nor in documents tha
41、t contain editorial changes only. 8.2 Prior to use, tubing should be cleaned and chemically film treated to increase corrosion resistance. Metallic flakes or particles should not be collected by a clean black cloth when it is drawn through the length of the bore of a sample tube. Discoloration of th
42、e cloth without the presence of flakes or grit is acceptable. 8.3 A double flare is similar to a standard single flare except that the flare is folded back on itself such that the cut edge is inside the flare near the ID of the tube. Definitions and illustration of single flaring are shown in MS3358
43、4; double flaring is defined and illustrated in MS33583. 8.4 Terms used in AMS are clarified in ARP1917. 8.5 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 equi
44、valents of the primary units and are presented only for information. 8.6 Purchase documents should specify not less than the following: AMS4071MSize of tubing desired Quantity of tubing desired. 8.7 Similar Specifications Federal WW-T-700/4, Temper 0, 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-,-,-
