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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this p
3、ublication may 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: +1 724-776-497
4、0 (outside USA) 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/AMS6360M AEROSPACE MATERIAL SPECIFICATION AMS6360 REV. M Issued 1939-12 Revised 2
5、013-10 Superseding AMS6360L Steel Tubing, Seamless 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) Normalized or Stress Relieved (Composition similar to UNS G41300) RATIONALE AMS6360M results from a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers an aircraft-
6、quality, low-alloy steel in the form of seamless tubing. 1.2 Application This tubing has been typically used in thin-walled sections where minimum tensile strength up to 160 ksi (1103 MPa) is required and where parts may be welded during fabrication, but usage is not limited to such applications. 2.
7、 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 a subsequent revision of a document unless a specific document issue is specified. When the referenced do
8、cument 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 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outsid
9、e USA), www.sae.org. AMS2253 Tolerances, Carbon and Alloy Steel Tubing AMS2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon Steels AMS2301 Steel Cleanliness, Aircraft Quality, Magnetic Particle Inspection Procedure AMS2370 Quality Assurance Sampling and Testing, Carbon and Low-Alloy
10、Steel Wrought Products and Forging Stock SAE INTERNATIONAL AMS6360M Page 2 of 6 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 International, 100 Barr Harbor Drive,
11、 P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 370 Mechanical Testing of Steel Products ASTM E 112 Determining Average Grain Size ASTM E 350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron ASTM E 38
12、4 Knoop and Vickers Hardness of Materials ASTM E 1444 Magnetic Particle Testing 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 350, by spectrochemical methods, or by other analytical
13、methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon 0.28 0.33 Manganese 0.40 0.60 Silicon 0.15 0.35 Phosphorus - 0.025 Sulfur - 0.025 Chromium 0.80 1.10 Molybdenum 0.15 0.25 Nickel - 0.25 Copper - 0.35 3.1.1 Check Analysis Composition variations shall meet the applicable re
14、quirements of AMS2259. 3.2 Condition The tubing shall be supplied cold finished and either normalized and tempered, stress relieved, or otherwise heat treated. 3.3 Properties Tubing shall conform to the following requirements; tensile testing shall be performed in accordance with ASTM A 370: 3.3.1 T
15、ensile Properties Shall be as shown in Table 2. SAE INTERNATIONAL AMS6360M Page 3 of 6 TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Nominal OD Inch Nominal Wall Thickness Inch Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches % Full Tube Elongation in 2 Inches
16、% Strip Up to 0.500, excl Up to 0.188, incl 95 75 10 - Up to 0.500, excl Over 0.188 90 70 10 - 0.500 and over Up to 0.188, incl 95 75 12 7 0.500 and over Over 0.188 90 70 15 10 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal OD Millimeters Nominal Wall Thickness Millimeters Tensile Strength
17、MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm % Full Tube Elongation in 50.8 mm % Strip Up to 12.70, excl Up to 4.78, incl 655 517 10 - Up to 12.70, excl Over 4.78 621 483 10 - 12.70 and over Up to 4.78, incl 655 517 12 7 12.70 and over Over 4.78 621 483 15 10 3.3.2 Average Grain Size
18、Shall be ASTM No. 5 or finer, determined in accordance with ASTM E 112. 3.3.3 Decarburization 3.3.3.1 Tubing ordered ground, turned, or polished shall be free from decarburization on the ground, turned, or polished surfaces. Decarburization on tubing ID shall not exceed the maximum depth specified i
19、n Table 3. 3.3.3.2 Allowable decarburization of pierced billets, of tubing for redrawing, or of tubing ordered to specified microstructural requirements shall be as agreed upon by purchaser and vendor. 3.3.3.3 Tubing to which 3.3.3.1 or 3.3.3.2 is not applicable shall be free from complete decarburi
20、zation. Partial decarburization shall not exceed the limits specified in Table 3. TABLE 3A MAXIMUM DEPTH OF DECARBURIZATION, INCH/POUND UNITS Nominal Wall Thickness (T) Inch Depth of Partial Decarburization Inch ID Depth of Partial Decarburization Inch OD Depth of Partial Decarburization Inch ID+OD
21、Up to 0.040, incl 0.18T 0.18T 0.25T Over 0.040 to 0.050, incl 0.009 0.009 0.012 Over 0.050 to 0.070, incl 0.010 0.010 0.014 Over 0.070 to 0.080, incl 0.012 0.012 0.016 Over 0.080 to 0.090, incl 0.014 0.014 0.018 Over 0.090 to 0.100, incl 0.015 0.015 0.020 Over 0.100 to 0.150, incl 0.017 0.017 0.022
22、Over 0.150 to 0.200, incl 0.020 0.020 0.026 SAE INTERNATIONAL AMS6360M Page 4 of 6 TABLE 3B MAXIMUM DEPTH OF DECARBURIZATION, SI UNITS Nominal Wall Thickness (T) Millimeters Depth of Partial Decarburization Millimeter ID Depth of Partial Decarburization Millimeter OD Depth of Partial Decarburization
23、 Millimeter ID+OD Up to 1.02, incl 0.18T 0.18T 0.25T Over 1.02 to 1.27, incl 0.23 0.23 0.30 Over 1.27 to 1.78, incl 0.25 0.25 0.36 Over 1.78 to 2.03, incl 0.30 0.30 0.41 Over 2.03 to 2.29, incl 0.36 0.36 0.46 Over 2.29 to 2.54, incl 0.38 0.38 0.51 Over 2.54 to 3.81, incl 0.43 0.43 0.56 Over 3.81 to
24、5.08, incl 0.51 0.51 0.66 3.3.3.4 Decarburization shall be measured by the microscopic method or by a traverse method using microhardness testing in accordance with ASTM E 384. The microhardness method shall be conducted on a hardened but untempered specimen protected during heat treatment to preven
25、t changes in surface carbon content. Depth of decarburization, when measured by the microhardness method, is defined as the perpendicular distance from the surface to the depth under that surface where there is no further increase in hardness. Such measurements shall be far enough away from any adja
26、cent surface to be uninfluenced by decarburization on the adjacent surface. In case of dispute, the depth of decarburization determined using the microhardness traverse method shall govern. 3.3.3.4.1 When determining the depth of decarburization, it is permissible to disregard local areas provided t
27、he decarburization of such areas does not exceed the above limits by more than 0.005 inch (0.13 mm) and the width is 0.065 inch (1.65 mm) or less. 3.4 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
28、quality aircraft tubing. It shall be smooth and free from heavy scale 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, shallo
29、w pits, and scale pattern will not be considered injurious if the imperfections are removable within the tolerances specified for wall thickness, but removal of such imperfections is not required. 3.4.1 Steel shall be aircraft quality conforming to AMS2301. 3.4.2 When specified, the tubing, either w
30、ith or without machining of the surface, shall be subjected to magnetic particle inspection in accordance with ASTM E 1444. Standards for acceptance shall be as agreed upon by purchaser and vendor. 3.5 Tolerances Shall conform to all applicable requirements of AMS2253. 4. QUALITY ASSURANCE PROVISION
31、S: 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 tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the tubing conforms
32、to specified requirements. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each heat or lot as applicable. SAE INTERNATIONAL AMS6360M Page 5 of 6 4.3 Sampling and Testing Shall be in accordance with AMS2370. 4.4 Reports The producer of the tubing
33、 shall furnish with each shipment a report showing the producer identity and country where the metal was melted (i.e., final melt in the case of metal processed by multiple melting operations) and the results of tests for composition and frequency-severity cleanliness rating of each heat, and for te
34、nsile properties and average grain 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, AMS6360M, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2370. 5
35、. 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 (3 m). 5.2 Identificatio
36、n Shall be in accordance with AMS2807. 5.3 Protective Treatment Tubing shall be proctected from corrosion prior to shipment. 5.4 Packaging Tubing shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling,
37、packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall include this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Tubing not conforming to this specification,
38、or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|) 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) sym
39、bol 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 that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. SAE INTERNATIONAL AMS63
40、60M Page 6 of 6 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 are shown as the approximate equivalents of the primary units and are presented only for information. 8.4 Purchase documen
41、ts should specify not less than the following: AMS6360M Size of tubing desired Quantity of tubing desired. Standards for acceptance when magnetic particle inspection is specified (See 3.4.2). 8.5 Similar Specifications: AMS-T-6736, Condition N, 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 “E”
