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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE International All rights reserved. No part of this publication m
3、ay 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 (outside U
4、SA) 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/AMS4083L AEROSPACE AEROSPACE MATERIAL SPECIFICATION AMS4083 REV. L Issued 1948-11 Revised 201
5、2-11 Superseding AMS4083K Aluminum Alloy Tubing, Hydraulic, Seamless, Drawn, Round 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061-T6) Solution and Precipitation Heat Treated (Composition similar to UNS 96061) RATIONALE AMS4083L corrects the calculation of hydraulic strength (3.3.4), revises acceptance crite
6、ria for eddy current inspection (3.4.3.2), and results from a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of seamless round tubing. 1.2 Application This tubing has been used typically for parts operating under high pres
7、sure, 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 forms a part of this specification to the extent specified herein. The supplier may work to
8、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 document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonw
9、ealth 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 Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings AMS277
10、2 Heat Treatment of Aluminum Alloy Raw Materials SAE AMS4083L 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 B 660 Packaging/Packing of Aluminum and Magnesium Products
11、ASTM B 666/B 666M Identification Marking of Aluminum Products ASTM E 215 Standardizing Equipment for Electromagnetic Testing of Seamless Aluminum-Alloy Tube 2.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036, Tel: 212-642-4900, www.ans
12、i.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 AMS2355. TABLE 1 - COMPOSITI
13、ON Element min max Silicon Iron Copper Manganese Magnesium Chromium Zinc Titanium Others, each Others, total Aluminum 0.40 - 0.15 - 0.8 0.04 - - - - remainder 0.8 0.7 0.40 0.15 1.2 0.35 0.25 0.15 0.05 0.15 3.2 Condition Solution and precipitation heat treated in accordance with AMS2772. 3.2.1 Tubing
14、 shall be supplied unground with an as-drawn surface finish, unless otherwise specified by purchaser. 3.3 Properties Tubing shall conform to the following requirements, determined on the mill produced size in accordance with AMS2355, except as specified in 3.4.3.2: 3.3.1 Tensile Properties Shall be
15、as specified in Table 2: SAE AMS4083L Page 3 of 7 TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal Wall Thickness Inch Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D Cut Out Specimen % Elongation in 2 Inches or 4D Full Section Specimen % 0.025 to 0
16、.049, incl Over 0.049 to 0.259, incl Over 0.259 to 0.500, incl 42.0 42.0 42.0 35.0 35.0 35.0 8 10 12 10 12 14 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Wall Thickness Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D Cut Out Specimen % Elong
17、ation in 50.8 mm or 4D Full Section Specimen % 0.64 to 1.24, incl Over 1.24 to 6.58, incl Over 6.58 to 12.70, incl 290 290 290 241 241 241 8 10 12 10 12 14 3.3.2 Flattening Tubing having nominal wall thickness less than 10% of the nominal OD shall withstand, without cracking, flattening sideways und
18、er a load applied gradually at room temperature until the outside dimension under load is equal to eight times the nominal wall thickness. Tubing having nominal wall thickness 10% or more of the nominal OD shall withstand without cracking, flattening sideways under a load applied gradually at room t
19、emperature until the outside dimension under load equals 90% of the nominal OD. 3.3.2.1 If tubing does not pass the flattening test of 3.3.2, a section of tube not less than 0.5 inch (12.7 mm) in length and embracing one-third to one-half the circumference of the tube shall withstand, without cracki
20、ng, bending at room temperature through an angle of 180 degrees around a mandrel having a diameter equal to 6 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. 3.3.3 Flarability Specimens as in 4.3.1 from tubing 0.375
21、 inch (9.52 mm) and under in nominal OD shall withstand being double-flared (See 8.2) and from tubing over 0.375 inch (9.52 mm) in nominal OD shall withstand being single flared without formation of cracks or other visible defects by being forced axially, at room temperature, with steady pressure ov
22、er a hardened and polished tapered steel pin having a 74-degree included angle to produce a flare having a permanent expanded OD not less than specified in Table 3. TABLE 3A - FLARABILITY REQUIREMENTS, INCH/POUND UNITS Nominal OD Inch Expanded OD Inch Nominal OD Inches Expanded OD Inches 0.125 0.200
23、 1.000 1.187 0.188 0.302 1.250 1.500 0.250 0.359 1.500 1.721 0.312 0.421 1.750 2.106 0.375 0.484 2.000 2.356 0.500 0.656 2.500 2.856 0.625 0.781 3.000 3.356 0.750 0.937 SAE AMS4083L Page 4 of 7 TABLE 3B - FLARABILITY REQUIREMENTS, SI UNITS Nominal OD Millimeters Expanded OD Millimeters Nominal OD Mi
24、llimeters Expanded OD Millimeters 3.18 5.08 25.40 30.15 4.78 7.67 31.75 38.10 6.35 9.12 38.10 43.71 7.92 10.69 44.45 53.49 9.52 12.29 50.80 59.84 12.70 16.66 63.50 72.54 15.88 19.84 76.20 85.24 19.05 23.80 3.3.3.1 Tubing with nominal OD between any two standard sizes shown in Table 3 shall take the
25、same percentage flare as that for the larger of the two sizes. 3.3.4 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%: P S D2 d2D2 d2+-= (Eq. 1) where: S = 35.0 ksi
26、 (241 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 testing should be taken at substantially the
27、 same location. 3.4 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. 3.4.1 Metallographic Examination A polished and etched cross-section of a tube from each lot shal
28、l 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 crosshatching (surface breaks) that cannot be removed by light hand-sanding, using 180-grit or finer sandpa
29、per. 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. SAE AMS4083L Page 5 of 7 3.4.3.1 Immersion Test A tube, immersed in water or other
30、 suitable liquid while an air pressure of 250 psi (1724 kPag) is applied to the inside of the tube and held for not less than five 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 shal
31、l be used to set threshold levels. 3.4.3.2.1 If Method A (ASTM E 215) is used to establish secondary standards, tubes exhibiting eddy current responses smaller than those obtained from the db holes are acceptable. Tubes exhibiting eddy current responses equivalent to or greater than those obtained f
32、rom the db holes in the reference standard are not acceptable. 3.4.3.2.2 If Method B (ASTM E215) is used to establish secondary standards, and the alarm level is set as specified in ASTM E215, Method B, tubes exhibiting eddy current responses which trigger the alarm are not acceptable. 3.4.4 Prior t
33、o use, tubing should be cleaned and chemically film treated to increase corrosion resistance. Metallic flakes or particles shall not be collected by a clean white cloth drawn through the length of the bore of a test sample. Discoloration of the cloth without the presence of flakes or particles is ac
34、ceptable. 3.5 Tolerances Tubing shall conform to all applicable requirements of ANSI H35.2 or ANSI H 35.2M. 4. 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 t
35、ests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed 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), flarability (3.3.3), metallographic ex
36、amination (3.4.1), leak determination (3.4.3) and tolerances (3.5) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Flattening (3.3.2) and hydraulic strength (3.3.4) are periodic tests and shall be performed at a frequency selected by the vendor
37、unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355 and the following: 4.3.1 Specimens for flarability test (3.3.3) shall be full tubes or sections cut from tubes. The end of the specimen to be flared shall be cut square, with the cut e
38、nd smooth and free from burrs, but not rounded. SAE AMS4083L Page 6 of 7 4.4 Reports The vendor of tubing shall furnish with each shipment a report stating that the tubing conforms to the composition and tolerances (and NDT inspection, when required); and showing the numerical results of tests on ea
39、ch inspection lot to determine conformance to the other acceptance test requirements and periodic test requirements when performed. This report shall include the purchase order number, inspection lot number(s), AMS4083L, size, and quantity. The report shall also identify the producer, the product fo
40、rm, 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 be in accordance with ASTM B 666/B 666M. 5.2 Packaging 5.2.1 When specified, tubing shall be coated, prior to shipment, with a light corrosion-
41、inhibiting oil. 5.2.2 Tubing shall be prepared for shipment in accordance with ASTM B 660, Commercial Practice, and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery. 6. ACKNOWLED
42、GMENT 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, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|)
43、 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 document, including technical
44、 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 and as follows: 8.2.1 A double flare is similar to a standard single flare except that the flare is folded back on itself such t
45、hat the cut edge is inside the flare near the ID of the tube. Definitions and illustrations of single flaring are shown in MS 33584; double flaring is defined and illustrated in MS 33883. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and pr
46、operties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. SAE AMS4083L Page 7 of 7 8.4 Purchase documents should specify not less than the following: AMS4083L Size of tubing required. Quantity of tubing required. PREPARED BY AMS COMMITTEE “D“
