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 2010 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/AMS5581F AEROSPACE MATERIAL SPECIFICATION AMS5581 REV. F Issued 1977-01 Revised 2010-02Supers
5、eding AMS5581E Nickel Alloy, Corrosion and Heat-Resistant, Seamless or Welded Tubing 62Ni - 21.5Cr - 9.0Mo - 3.7Cb (Nb) Annealed (Composition similar to UNS N06625) RATIONALE AMS5581F corrects an error in Table 3A. 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant nickel all
6、oy in the form of two types of tubing. 1.2 Application This tubing has been used typically for fluid lines requiring high strength and corrosion resistance at temperatures from cryogenic to 1800 F (982 C), but usage is not limited to such applications. 1.3 Classification The tubing covered by this s
7、pecification is classified as follows: Type 1 - Seamless and drawn Type 2 - Welded and drawn 1.3.1 Unless a specific type is specified, either Type 1 or Type 2 may be supplied. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of th
8、is 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 document shall
9、 apply. SAE AMS5581F Page 2 of 6 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), or www.sae.org. AMS2263 Tolerances, Nickel, Nickel Alloy, and Cobalt Alloy Tubing AMS226
10、9 Chemical Check Analysis Limits, Nickel, Nickel Alloys, and Cobalt Alloys AMS2371 Quality Assurance Sampling and Testing, Corrosion and-Heat Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and A
11、lloys, Sheet, Strip, Plate, and Aircraft Tubing 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, or www.astm.org. ASTM A 370 Mechanical Testing of Steel Products ASTM E 112 Determining Average Grain Si
12、ze ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys ASTM E 407 Microetching Metals and Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical met
13、hods in accordance with ASTM E 354, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon Manganese Silicon Phosphorus Sulfur Chromium Molybdenum Columbium (Niobium) Titanium (3.1.1) Aluminum (3.1.1) Cobalt (3.1.2) Iron Nicke
14、l - - - - - 20.00 8.00 3.15 - - - - remainder0.10 0.50 0.50 0.0150.01523.00 10.00 4.15 0.40 0.40 1.00 5.00 SAE AMS5581F Page 3 of 6 3.1.1 Shall be present but not in excess of specified maximum. 3.1.2 Determination not required for routine acceptance. 3.1.3 Check Analysis Composition variations shal
15、l meet the applicable requirements of AMS2269. 3.2 Condition Solution heat treated, and unless solution heat treatment is performed in an atmosphere yielding a bright finish, pickled as required. 3.3 Fabrication Tubing shall be produced by a seamless and drawn or a welded and drawn process. A light
16、polish to improve external surface appearance may be employed after cold drawing. 3.3.1 Welded (Type 2) tubing shall be cold reduced after welding to remove the bead and any dimensional indication of the presence of welds. 3.4 Properties Tubing shall conform to the following requirements: 3.4.1 Tens
17、ile Properties Shall be as shown in Table 2, determined in accordance with ASTM A 370. TABLE 2 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength Yield Strength at 0.2% Offset Elongation in 2 Inches (50.8 mm) or 4D, min 120 ksi (827 MPa) 60 ksi (414 MPa) 35% SAE AMS5581F Page 4 of 6 3.4.2
18、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 pressure over a hardened and polished tapered steel pin having a 74-degree included angle to produce a flare having a permanent exp
19、anded OD not less than specified in Table 3. TABLE 3A - FLARABILITY, INCH/POUND UNITS Nominal OD Inch Expanded OD Inch Nominal OD Inches Expanded OD Inches 0.125 0.188 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
20、2.106 2.356 TABLE 3B - FLARABiLITY, SI UNITS Nominal OD Millimeters Expanded OD Millimeters Nominal OD Millimeters Expanded OD Millimeters 3.18 4.78 6.35 7.92 9.52 12.70 15.88 5.08 7.67 9.12 10.69 12.29 16.66 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 Tubin
21、g with nominal OD between any two standard sizes given in Table 3 shall take the same percentage flare as shown for the larger of the two sizes. 3.4.3 Pressure Test Tubing, when subjected to an internal hydrostatic pressure (P) as determined from Equation 1, shall show no bulges, leaks, pinholes, cr
22、acks, or other defects, except that a diametric permanent set of 0.002 inch per inch (0.002 mm/mm) of diameter is acceptable. (Eq. 1) where, P = Test pressure in ksi (MPa) S = 60.0 ksi (414 MPa) D = Nominal OD in inches (mm) (nominal OD plus tolerance) d = Nominal ID in inches (mm) (nominal OD minus
23、 twice the minimum wall thickness) 3.4.4 Microstructure Tubing shall reveal no continuous intergranular carbide precipitation when suitably etched and examined microscopically at 500X magnification. The presence of some discontinuous intergranular carbide precipitation shall not be considered detrim
24、ental if the other technical requirements are met. Standards for acceptance may be as agreed upon by purchaser and vendor. PSD2d2D2d2+-=SAE AMS5581F Page 5 of 6 3.4.5 Average Grain Size Shall be ASTM No. 5 or finer, determined by comparison of a specimen, polished and electrolytically etched in acco
25、rdance with ASTM E 407, with the chart in ASTM E 112, using 100X magnification. 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 sca
26、le or oxide, burrs, seams, tears, grooves, laminations, 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 will not be considered injurious if the i
27、mperfections are removable within the tolerances specified for wall thickness but removal of such imperfections is not required. 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 when it is drawn through the le
28、ngth of the bore of a test sample. Discoloration of the cloth, without the presence of flakes or particles, is acceptable. 3.6 Tolerances Shall conform to of AMS2263. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of tubing shall supply all samples for vendors tests and
29、 shall be responsible for 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) (See 3.1
30、.2), tensile properties (3.4.1), pressure test (3.4.3), microstructure (3.4.4), average grain size (3.4.5), quality (3.5), 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 perf
31、ormed 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 (3.4.2) test shall be full tubes or sections cut from a tube. The end of the specimen to
32、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, pressure test, microstructure, and average gra
33、in size of each lot, and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5581F, size, and quantity. SAE AMS5581F Page 6 of 6 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPA
34、RATION 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 (3 m). 5.2 Identification Shall
35、 be in accordance with AMS2807. 5.3 Packaging 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 of the tubing to ensure carrier acceptance and safe delivery. 6
36、. 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 by purchaser, will be subject to rejection. 8. NOTES 8.1 A cha
37、nge 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 document, includ
38、ing 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 the Fahrenheit temperatures are primary; dimensions and prop
39、erties 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: AMS5581F Type and size of tubing desired Quantity of tubing desired Microstructure acceptance standards (See 3.4.4). PREPARED BY AMS COMMITTEE “F“
