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 2013 SAE InternationalAll rights reserved. No part of this publication may b
3、e 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 USA)Fax
4、: 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/AMS5574FAEROSPACEMATERIALSPECIFICATIONAMS5574 REV. FIssued 1952-11Revised 2013-03Superseding AMS5574EStee
5、l, Corrosion and Heat Resistant, Seamless Tubing23Cr - 13.5Ni (309S)Solution Heat Treated(Composition similar to UNS S30908)RATIONALEAMS5574F revises Tensile Properties (3.4.1, Table 2) and is a Five Year Review and update of this specification. 1. SCOPE1.1 FormThis specification covers a corrosion
6、and heat resistant steel in the form of seamless tubing.1.2 ApplicationThis tubing has been used typically for parts requiring both corrosion and heat resistance, especially when such parts are welded during fabrication and for parts requiring oxidation resistance up to 2000 F (1093 C) though useful
7、 at that temperature only when stresses are low, 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 forms a part of this specification to the extent specified herein. The supplier may work to a subsequ
8、ent 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 PublicationsAvailable from SAE International, 400 Commonwealth Drive
9、, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USAand Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2243 Tolerances, Corrosion and Heat Resistant Steel TubingAMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Stee
10、ls, and Iron AlloysAMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging StockAMS2634 Ultrasonic Inspection, Thin Wall Metal TubingSAE AMS5574F Page 2 of 5AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Re
11、sistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing2.2 ASTM PublicationsAvailable 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 249 Welded Austenitic Steel Boiler, Superheater, Heat- Exchanger, a
12、nd Condenser TubesASTM A 370 Mechanical Testing of Steel ProductsASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron AlloysASTM E 426 Electromagnetic (Eddy-Current) Examination of Seamless and Welded Tubular Products, Austenitic Stainless Steel
13、 and Similar AlloysASTM E 1417 Liquid Penetrant Testing3. TECHNICAL REQUIREMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 353, by spectrochemical methods, or other analytical methods acceptable to purchase
14、r.TABLE 1 - COMPOSITIONElement min maxCarbonManganeseSiliconPhosphorusSulfurChromiumNickelMolybdenumCopper-22.0012.00-0.082.001.000.0400.03024.00 15.00 0.750.753.1.1 Check AnalysisComposition variations shall meet the applicable requirements of AMS2248.3.2 ConditionSolution heat treated free from co
15、ntinuous carbide network and descaled.3.3 FabricationTubing shall be 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 external surface appear
16、ance may be employed after solution heat treatment and, if performed, the product shall be subsequently passivated.3.4 PropertiesTubing shall conform to the following requirements:SAE AMS5574F Page 3 of 53.4.1 Tensile PropertiesShall be as shown in Table 2, determined in accordance with ASTM A 370:T
17、ABLE 2A - TENSILE PROPERTIES, INCH/POUND UNITS1, 2Nominal ODInchWall ThicknessInchTensileStrengthKsi1Yield Strength, Min, KSI0.2% OffsetElongationin 2 inches%, minStripElongationin 2 inches%, minFull TubeOver .125 Over 0.015 75-100 30 35 40TABLE 2B - TENSILE PROPERTIES, SI UNITS1,2Nominal ODMillimet
18、ersNominalWall ThicknessMillimeterTensileStrengthMPa1, maxYield Strength, minMPa0.2% Offset2Elongationin 50.8 mm%, minStripElongationin 50.8 mm%, minFull TubeOver 3.2 Over 0.254 517-689 207 35 401Minimum tensile and yield strength properties have been taken from ASTM A249, and have not been substant
19、iated using the procedures of SAE/AMS Metals Division.2. Mechanical properties for tube sizes less than.125 inch (3.2 mm) or for wall thicknesses less than .015 inch (.38 mm) shall be as agreed upon between purchaser and vendor.3.4.2 FlarabilitySpecimens as in 4.3.1 shall withstand flaring at room t
20、emperature, without formation of cracks or other visible defects, by being forced axially with steady pressure 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 1.30 times the original nominal OD.3.5 Quali
21、ty3.5.1 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, slivers, pits, and other imp
22、erfections detrimental to usage of the tubing. Surface imperfections such as handling marks, straightening marks, light mandrel and die marks, shallow pits, and scale pattern will not be considered injurious if the imperfections are removable within the tolerances specified for wall thickness but re
23、moval of such imperfections is not required.3.5.2 When specified by purchaser, tubing shall be subjected to fluorescent penetrant inspection in accordance with ASTM E 1417, to ultrasonic inspection in accordance with AMS2634, to electromagnetic (Eddy-Current) inspection in accordance with ASTM E 426
24、, or to any combination thereof. Standards for such inspections shall be as agreed upon between purchaser and vendor (See 8.4).3.6 TolerancesShall conform to all applicable requirements of AMS2243.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of tubing shall supply all s
25、amples 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 tubing conforms to specified requirements.SAE AMS5574F Page 4 of 54.2 Classification of Tests
26、4.2.1 Acceptance TestsComposition (3.1), condition (3.2), tensile properties (3.4.1), nondestructive inspection (3.5.2) when specified, and tolerances (3.6) are acceptance tests and shall be performed on each heat or lot as applicable.4.2.2 Periodic TestsFlarability (3.4.2) is a periodic test and sh
27、all be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser.4.3 Sampling and TestingShall 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 spec
28、imen to be flared shall be cut square, with the cut end smooth and free from burrs, but not rounded.4.4 ReportsThe vendor of the product shall furnish with each shipment a report showing the results of tests for composition of each heat and for tensile properties of each lot, and stating that the pr
29、oduct conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5574F, size, and quantity.4.5 Resampling and RetestingShall be in accordance with AMS2371.5. PREPARATION FOR DELIVERY5.1 SizesExcept when exact lengths or multiples of ex
30、act 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 (3 m).5.2 IdentificationShall be in accordance with AMS2807.5.3 PackagingTubing shall be prepared for shi
31、pment in accordance with 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. ACKNOWLEDGMENTA vendor shall mention this specification number and its revisi
32、on letter in all quotations and when acknowledging purchase orders.7. REJECTIONSTubing not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.SAE AMS5574F Page 5 of 58. NOTES8.1 A change bar (|) located in the left margin is for the convenienc
33、e 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 and (R) are not used in o
34、riginal publications, nor in documents that contain editorial changes only.8.2 Terms used in AMS are clarified in ARP1917 and as follows:8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures a
35、re 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:AMS5574FMechanical property requirements of tubes 0.125 inch OD or 0.015 inch wall thickness or less.Size of tubing desiredQuantity of tubing desiredStandards for acceptance of nondestructive testing, if required (See 3.5.2).PREPARED BY AMS COMMITTEE “F“
