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/AMS5571J AEROSPACE MATERIAL SPECIFICATION AMS5571 REV. J Issued 1948-11 Reaffirmed 2000-10 Re
5、vised 2012-01 Superseding AMS5571H Steel, Corrosion and Heat-Resistant, Seamless Tubing 18Cr - 10.5Ni - 0.70Cb (Nb) (347) Solution Heat Treated (Composition similar to UNS S34700)RATIONALE AMS5571J revises Tensile Properties (Table 2) to include minimum tensile strengths from ASTM A 511 and is a Fiv
6、e Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant steel in the form of seamless tubing. 1.2 Application This tubing has been used typically for parts requiring both corrosion and heat resistance, especially when such parts are
7、welded during fabrication, but usage is not limited to such applications. Also for parts requiring oxidation resistance up to 1500 F (816 C), but useful at that temperature only when stresses are low. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase
8、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 and no superseding document has been specified, the last published issu
9、e 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. AMS2243 Tolerances, Corrosion and Heat-Resistant Steel Tubing AMS2248 Chemic
10、al Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock SAE AMS5571J Page 2 of 6 AMS2632 Insp
11、ection, Ultrasonic, of Thin Materials, 0.50 Inch (12.7 mm) and Under in Cross-Sectional Thickness AMS2645 Fluorescent Penetrant Inspection AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing 2.2 ASTM Publicatio
12、ns 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 A 262 Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels ASTM A 370 Mechanical Testing of Steel Products ASTM E 353 Chemica
13、l Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys ASTM E 426 Electromagnetic (Eddy-Current) Testing of Seamless and Welded Tubular Products, Austenitic Stainless Steel and Similar Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the per
14、centages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 353, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon Manganese Silicon Phosphorus Sulfur Chromium Nickel Columbium (Niobi
15、um) Molybdenum Tantalum Copper - - 0.30 - - 17.00 9.00 10XC - - - 0.08 2.00 1.00 0.0400.03019.00 12.00 1.10 0.75 0.05 0.75 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2248. 3.2 Condition Solution heat treated and descaled. 3.3 Fabrication Tubing shall be
16、produced by a seamless process. Any surface finishing operation applied to remove objectionable pits and surface blemishes shall be performed prior to final solution heat treatment. A light polish to improve surface appearance may be employed after solution heat treatment. SAE AMS5571J Page 3 of 6 3
17、.4 Properties Tubing shall conform to the following requirements; tensile and flarability testing shall be performed in accordance with ASTM A 370: 3.4.1 Tensile Properties Shall be as shown in Table 2. TABLE 2A - TENSILE PROPERTIES, INCH/POUND UNITS Nominal OD Inches Wall Thickness Inches Tensile S
18、trengthksi, maxTensile Strength,ksi, min1 Yield Strength at 0.2% Offset,min1 Elongation in 2 inches %, min Strip Elongationin 2 inches%, min Full Tube Up to 0.188, incl Up to 0.016, inclOver 0.016 120 105 75 30 - - 33 35 Over 0.188 to 0.500, incl Up to 0.010, inclOver 0.010 115 105 75 30 30 30 35 35
19、 Over 0.500 Up to 0.010, inclOver 0.010 120 105 75 30 25 30 30 35 1. Minimum tensile properties for tubing have been taken directly from ASTM A 511 (See 8.4). TABLE 2B - TENSILE PROPERTIES, SI UNITS Nominal OD mm Wall Thicknessmm Tensile Strength MPa, maxTensile Strength, MPa, min1 Yield Strength,at
20、 0.2% Offset,min1 Elongation in 50.8 mm %, min Strip Elongation in 50.8 mm%, min Full Tube Up to 4.78, incl Up to 0.41, inclOver 0.41 827 724 515 210 - - 33 35 Over 4.78 to 12.70, incl Up to 0.25, inclOver 0.25 793 724 515 210 30 30 35 35 Over 12.70 Up to 0.25, inclOver 0.25 827 724 515 210 25 30 30
21、 35 1. Minimum tensile properties for tubing have been taken directly from ASTM A 511 (See 8.4). SAE AMS5571J Page 4 of 6 3.4.2 Flarability Specimens as in 4.3.1 shall withstand flaring at room temperature, without formation of cracks or other visible defects, by being forced axially with steady pre
22、ssure over 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, INCH/POUND UNITS Nominal OD Inches Expanded OD Inches Nominal OD Inches Expanded OD Inches 0.125 0.188
23、0.250 0.312 0.375 0.500 0.625 0.200 0.302 0.359 0.421 0.484 0.656 0.781 0.750 1.000 1.250 1.500 1.750 2.000 0.937 1.187 1.500 1.721 2.106 2.356 TABLE 3B - FLARABILITY, SI UNITS Nominal OD mm Expanded OD mm Nominal OD mm Expanded OD mm 3.18 4.78 6.35 7.92 9.52 12.70 15.88 5.08 7.67 9.12 10.69 12.29 1
24、6.66 19.84 19.05 25.40 31.75 38.10 44.45 50.80 23.80 30.15 38.10 43.71 53.49 59.84 3.4.2.1 Tubing with nominal OD between any two standard sizes given in 3.4.2 shall take the same percentage flare as shown for the larger of the two sizes. 3.4.2.2 Flarability requirements for tubing over 2.000 inches
25、 (50.80 mm) or under 0.125 inch (3.18 mm) in nominal OD shall be as agreed upon by purchaser and vendor. 3.4.3 Susceptibility to Intergranular Attack Tubing, after sensitizing treatment in accordance with ASTM A 262, Practice E, shall pass the intergranular corrosion test performed in accordance wit
26、h ASTM A 262, Practice E. 3.5 Quality Tubing, as received by purchaser, shall be uniform in quality and condition and shall have a finish conforming to the best practice for high quality aircraft tubing. It shall be smooth and free from heavy scale or oxide, burrs, seams, tears, grooves, laminations
27、, slivers, pits, and other imperfections detrimental to usage of the tubing. Surface imperfections such as handling marks, straightening marks, light mandrel and die marks, shallow pits, and scale pattern are acceptable if the imperfections are removable within the tolerances specified for wall thic
28、kness. 3.5.1 Tubing shall be free from grease or other foreign matter. Metallic flakes or particles shall not be collected by a clean white cloth drawn through the length of the bore of a sample tube. Discoloration of the cloth, without the presence of flakes or particles, is acceptable. 3.5.2 When
29、specified by purchaser, tubing shall be subjected to fluorescent penetrant inspection in accordance with AMS2645, to ultrasonic inspection in accordance with AMS2632, to electromagnetic (Eddy-Current) testing in accordance with ASTM E 426, or to any combination thereof. Standards for acceptance shal
30、l be as agreed upon by purchaser and vendor. SAE AMS5571J Page 5 of 6 3.6 Tolerances Shall conform to all applicable requirements of AMS2243. 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
31、 the performance of all required tests. 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 (3.4.1), susc
32、eptibility to intergranular attack (3.4.3), cleanliness of tubing (3.5.1), nondestructive inspection when specified (3.5.2), and tolerances (3.6) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Periodic Tests Flarability (3.4.2) is a periodic test and shall be pe
33、rformed 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 AMS2371 and the following: 4.3.1 Specimens for flarability test (3.4.2) shall be full tubes or sections cut from a tube. The end of the specimen t
34、o be flared shall be cut square, with the cut end smooth and free from burrs, but not rounded. 4.4 Reports The vendor of tubing shall furnish with each shipment a report showing the results of tests for composition of each heat and for tensile properties, susceptibility to intergranular attack, clea
35、nliness, nondestructive inspection when specified, and tolerances of each lot and stating that the tubing conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5571J, size, and quantity. 4.5 Resampling and Retesting Shall be in ac
36、cordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, straight tubing will be acceptable in mill lengths of 6 to 20 feet (1.8 to 6.1 m) but not more than 10% of any shipment shall be supplied in lengths shorter than 10 feet
37、(3 m). 5.2 Identification Shall be in accordance with AMS2807. SAE AMS5571J Page 6 of 6 5.3 Packaging 5.3.1 Tubing shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation o
38、f 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, or to modifications authorized
39、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 technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document
40、 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 are clarified in ARP1917. 8.3 Dimensions and properties in inch/pound units and
41、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 Minimum tensile properties shown in Table 2 for tubing have been taken directly from A
42、STM A511, and have not been statistically substantiated in accordance with Aerospace Materials Division policy. 8.5 Purchase documents should specify not less than the following: AMS5571J Size of tubing desired Quantity of tubing desired Test method and acceptance standards for nondestructive inspection (See 3.5.2). 8.6 Similar Specifications MIL-T-8606, Type I, Composition 347, 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 “F“
