1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWDWH 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 therefrom, LVWKHVROHUHV
2、SRQVLELOLWRIWKHXVHU SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2016 SAE International All rights reserved. No part of this publication may be reproduce
3、d, 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: 724-77
4、6-0790 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/AMS5560N AEROSPACE MATERIAL SPECIFICATION AMS5560 REV. N Issued 1944-11 Reaffirmed 2006-04 Revised 2016-02 S
5、uperseding AMS5560M Steel, Corrosion Resistant, Seamless Tubing 19Cr - 10Ni (304) Solution Heat Treated (Composition similar to UNS S30400) RATIONALE AMS5560N revises Fabrication (3.3) to add an option to perform bore conditioning on final product, Quality (3.5, 3.5.2) and Acceptance Tests (4.2.1.1)
6、 to add nondestructive testing requirements and Reports (4.4), and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a corrosion-resistant steel in the form of seamless tubing. 1.2 Application This tubing has been used typically for parts, such as fl
7、uid-conducting lines, not subjected to high pressure and requiring good corrosion resistance, but usage is not limited to such applications. Welding, brazing, or other exposure to temperatures over 800 F (427 C) during fabrication may impair corrosion resistance. 2. APPLICABLE DOCUMENTS The issue of
8、 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 subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no s
9、uperseding document has been specified, the last published issue 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 +1 724-776-4970 (outside USA), www.sae.org. AMS2243 To
10、lerances, Corrosion and Heat-Resistant Steel Tubing AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys SAE INTERNATIONAL $061 Page 2 of 6 AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-
11、Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2700 Passivation of Corrosion Resistant Steels AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing 2.2 ASTM Publications Available from ASTM In
12、ternational, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A262 Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels ASTM A370 Mechanical Testing of Steel Products ASTM A1016 General Requirements for Ferritic
13、Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes ASTM E353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet ch
14、emical methods in accordance with ASTM E353, by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element min max Carbon - 0.08 Manganese - 2.00 Silicon - 1.00 Phosphorus - 0.040 Sulfur - 0.030 Chromium 18.00 20.00 Nickel 8.00 12.00 Molybdenum - 0
15、.75 Copper - 0.75 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2248. 3.2 Condition Solution heat treated and unless solution heat treatment is performed in an atmosphere yielding a bright finish, pickled as required or passivated, and descaled. 3.3 Fabrica
16、tion Tubing shall be produced by a seamless process. Any finishing operations to remove pits and surface blemishes shall be performed prior to final solution heat treatment. A light polish to improve external surface appearance may be employed after solution heat treatment and, if performed, the pro
17、duct shall be subsequently passivated in accordance with AMS2700. Bore conditioning is permitted after solution heat treatment provided the tubing is not sized by metal removal methods and the tubing is passivated after any such conditioning (see 8.2.1). SAE INTERNATIONAL $061 Page 3 of 6 3.4 Proper
18、ties Tubing shall conform to the following requirements; tensile and bend testing shall be performed in accordance with ASTM A370: 3.4.1 Tensile Properties Shall be as shown in Table 2: Table 2A - Tensile properties, inch/pound units Nominal OD Inch Nominal Wall Thickness Inch Tensile Strength ksi,
19、max Elongation in 2 inches %, min Strip Elongation in 2 inches %, min Full Tube Up to 0.188, incl Over 0.188 to 0.500, incl Over 0.500 Up to 0.016, incl Over 0.016 Up to 0.010, incl Over 0.010 Up to 0.010, incl Over 0.010 115 100 110 100 100 100 - - 32 35 27 30 35 40 37 40 32 35 Table 2B - Tensile p
20、roperties, SI units Nominal OD Millimeters Nominal Wall Thickness Millimeter Tensile Strength MPa, max Elongation in 50.8 mm %, min Strip Elongation in 50.8 mm %, min Full Tube Up to 4.78, incl Over 4.78 to 12.70, incl Over 12.70 Up to 0.41, incl Over 0.41 Up to 0.25, incl Over 0.25 Up to 0.25, incl
21、 Over 0.25 793 689 758 689 689 689 - - 32 35 27 30 35 40 37 40 32 35 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 pressure over a hardened and polished tapered steel pin
22、having a 74 degree included angle to produce a flare having a permanent expanded OD not less than shown in Table 3. Table 3A - Minimum flarability, inch/pound units Nominal OD Inch Expanded OD Inch Nominal OD Inches Expanded OD Inches 0.125 0.200 0.750 0.937 0.188 0.302 1.000 1.187 0.250 0.359 1.250
23、 1.500 0.312 0.421 1.500 1.721 0.375 0.484 1.750 2.106 0.500 0.656 2.000 2.356 0.625 0.781 SAE INTERNATIONAL $061 Page 4 of 6 Table 3B - Minimum flarability, SI units Nominal OD Millimeters Expanded OD Millimeters Nominal OD Millimeters Expanded OD Millimeters 3.18 5.08 19.05 23.80 4.78 7.67 25.40 3
24、0.15 6.35 9.12 31.75 38.10 7.92 10.69 38.10 43.71 9.52 12.29 44.45 53.49 12.70 16.66 50.80 59.84 15.88 19.84 3.4.2.1 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. 3.4.3 Susceptibility to Intergran
25、ular Attack Specimens from tubing shall be immersed as required by ASTM A262, Practice E. After immersion, tubing shall not exhibit intergranular attack or cracks when tested in accordance with the following: 3.4.3.1 Examination of OD Surface Shall be performed after flattening a 1 inch (25 mm) long
26、 specimen to a total thickness under load of three times the wall thickness. 3.4.3.2 Examination of ID Surface Shall be performed after splitting a 1 inch (25 mm) long specimen and folding the split specimen, with ID surfaces on the outside of fold, around a mandrel having a diameter equal the nomin
27、al wall thickness of the tube. 3.4.3.2.1 Tubing Over 0.625 Inch (15.88 mm) in OD The axis of the fold shall be parallel to the axis of the tube. 3.4.3.2.2 Tubing 0.625 Inch (15.88 mm) and Under in OD The axis of the fold shall be either parallel or transverse to the axis of the tube. 3.5 Quality Tub
28、ing, 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 imperfections
29、detrimental to usage of the tubing. Surface imperfections such as handling marks, straightening marks, light mandrel and die marks, shallow pits, and scale patterns are acceptable providing their depth does not result in violation of minimum wall thickness requirements and their termination is not s
30、harp when viewed by the naked eye. 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 bore of a sample tube. Discoloration of the cloth, without the presence of flakes or particles, is acceptab
31、le. 3.5.2 Tubing shall be subjected to either ultrasonic inspection or to electromagnetic (eddy current) testing in accordance with ASTM A1016 except that suspect indications shall not be accepted based on visual observation, i.e. indications must be either rejected or reconditioned and retested to
32、pass the test. 3.6 Tolerances Shall conform to all applicable requirements of AMS2243. SAE INTERNATIONAL $061 Page 5 of 6 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
33、all required tests except formability. 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), and t
34、olerances (3.6) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.1.1 Nondestructive testing (3.5.2) shall be performed on each finished tube to assure the requirements of 3.5 are met. This requirement shall become effective September 1, 2016. 4.2.2 Periodic Tests Fl
35、arability (3.4.2), and susceptibility to intergranular attack (3.4.3) are periodic tests and shall be performed 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
36、 for flarability test (3.4.2) 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 not rounded. 4.4 Reports The vendor of tubing shall furnish with each shipment a report showing WKHYHQGRUVQDPHDQGF
37、RXQWUZKHUHWKHPHWDOwas melted (e.g., final melt in the case of metal processed by multiple melting operations) and the results of tests for composition of each heat and for tensile properties of each lot, and stating that the tubing conforms to the other technical requirements. This report shall incl
38、ude the purchase order number, heat and lot numbers, AMS5560N, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, tubing will be acceptable in mill lengths of
39、 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 be in accordance with AMS2807. 5.3 Packaging Tubing shall be prepared for shipment in accordance with commercial practice and in compliance with applic
40、able rules and regulations pertaining to the handling, packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery. SAE INTERNATIONAL $061 Page 6 of 6 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when
41、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 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where
42、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 original publications, nor in documents
43、 that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. 8.2.1 Bore conditioning is any mechanical cleaning method that is used in the bore of tubing to improve the final surface appearance, with no resultant dimensional change. 8.3 Dimensions and properties in inch/poun
44、d units and 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 Purchase documents should specify not less than the following: AMS5560N Si
45、ze of tubing desired Quantity of tubing desired Methods for nondestructive testing and standards for acceptance. 8.5 Similar Specifications AMS-T-8506 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“
