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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments andsuggestions.Copyright 2013 SAE InternationalAll rights reserved. No part of this public
3、ation 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: +1 724-776-4970 (outs
4、ide USA)Fax: 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/AMS6352KAEROSPACE MATERIAL SPECIFICATIONAMS6352 REV. KIssued 1939-12Revised 2013-10Superseding
5、 AMS6352JSteel Sheet, Strip, and Plate0.95Cr - 0.20Mo (0.33 - 0.38C) (SAE 4135)(Composition similar to UNS G41350)RATIONALEAMS6352K results from a Five Year Review and update of this specification.1. SCOPE1.1 FormThis specification covers an aircraft-quality, low-alloy steel in the form of sheet, st
6、rip, and plate.1.2 ApplicationThese products have been used typically for heat treated parts and structures that may require welding during fabrication, but usage is not limited to such applications. It may be through-hardened to a minimum tensile strength of 180 ksi (1241 MPa) in sections 0.125 inc
7、h (3.18 mm) and under in nominal thickness and proportionately lower strength in heavier section thicknesses.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 wor
8、k 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 apply.2.1 SAE PublicationsAvailable from SAE International, 400 Comm
9、onwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2252 Tolerances, Low-Alloy Steel Sheet, Strip, and PlateAMS2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon SteelsAMS2301 Steel Cleanliness, Aircraft Qu
10、ality, Magnetic Particle Inspection AMS2370 Quality Assurance Sampling and Testing, Carbon and Low-Alloy Steel Wrought Products and ForgingStockSAE INTERNATIONAL AMS6352K Page 2 of 5AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Pla
11、te, 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 370 Mechanical Testing of Steel ProductsASTM E 112 Determining Average Grain SizeASTM E 290 Bend Testing of Ma
12、terial for DuctilityASTM E 350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought IronASTM E 384 Knoop and Vickers Hardness of Materials3. TECHNICAL REQUIREMENTS3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined b
13、y wet chemical methods in accordance with ASTM E 350, by spectrochemical methods, or by other analytical methods acceptable to purchaser.TABLE 1 - COMPOSITIONElement min maxCarbon 0.33 0.38Manganese 0.70 0.90Silicon 0.15 0.35Phosphorus - 0.025Sulfur - 0.025Chromium 0.80 1.10Molybdenum 0.15 0.25Nicke
14、l - 0.25Copper - 0.353.1.1 Check AnalysisComposition variations shall meet the applicable requirements of AMS2259.3.2 ConditionThe product shall be supplied in the following condition; hardness shall be determined in accordance with ASTM A 370:3.2.1 Sheet and StripCold finished, bright or atmosphere
15、 annealed, and descaled if necessary, having hardness not higher than 98 HRB, or equivalent (See 8.2).3.2.2 PlateHot rolled, annealed if necessary, and descaled, having hardness not higher than 24 HRC, or equivalent (See 8.2).SAE INTERNATIONAL AMS6352K Page 3 of 53.3 PropertiesThe product shall conf
16、orm to the following requirements; hardness, tensile, and bend testing shall be performed in accordance with ASTM A 370:3.3.1 Average Grain SizeShall be ASTM No. 5 or finer determined in accordance with ASTM E 112.3.3.2 Response to Heat TreatmentSpecimens from product 0.499 inch (12.67 mm) and under
17、 in nominal thickness shall have tensile strength not lower than 125 ksi (862 MPa) or hardness not lower than 26 HRC, or equivalent (See 8.2), after being hardened by quenching in oil from 1600 F 10 (871 C 6) and tempered for not less than 30 minutes at not lower than 900 F (482 C).3.3.3 Decarburiza
18、tion3.3.3.1 Decarburization shall be measured by the metallographic method or by the microhardness traverse method in accordance with ASTM E 384. The microhardness method shall be conducted on a hardened but untempered specimen protected during heat treatment to prevent changes in surface carbon con
19、tent. 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 adjacent surface to be uninfluenced
20、 by any decarburization on the adjacent surface. In the case of dispute, the microhardness traverse method shall govern. 3.3.3.2 AllowanceThe total depth of the decarburization, determined metallographically at a magnification not exceeding 100X or by themicrohardness traverse method on the as-suppl
21、ied plate, shall not be greater than that shown in Table 2.TABLE 2A MAXIMUM DEPTH OF DECARBURIZATION, INCH/POUND UNITSNominal ThicknessInchesTotal Depth ofDecarburizationInch0.375 to 0.500, incl 0.015Over 0.500 to 1.000, incl 0.025Over 1.000 to 2.000, incl 0.035Over 2.000 As agreed uponTABLE 2B MAXI
22、MUM DEPTH OF DECARBURIZATION, SI UNITSNominal ThicknessMillimetersTotal Depth ofDecarburizationMillimeter9.52 to 12.70, incl 0.38Over 12.70 to 25.40, incl 0.64Over 25.40 to 50.80, incl 0.89Over 50.80 As agreed upon3.3.4 BendingProduct 0.749 inch (19.02 mm) and under in nominal thickness shall be tes
23、ted in accordance with ASTM E 290 using a sample prepared nominally 0.75 inch (19.0 mm) in width with its axis of bending parallel to the direction of rolling and shall withstand without cracking when bending at room temperature through the angle and bend radius shown in Table 3. In case of dispute,
24、 the results of tests using the guided bend test of ASTM E 290 shall govern.SAE INTERNATIONAL AMS6352K Page 4 of 5TABLE 3 - BENDING PARAMETERSNominal ThicknessInchNominal ThicknessMillimetersBendAngledeg, minBend Radiust = nominal thicknessUp to 0.249, incl Up to 6.32, incl 180 0.5tOver 0.249 to 0.7
25、49, incl Over 6.32 to 19.02, incl 90 0.5t3.4 QualityThe product, as received by purchaser, shall be uniform in quality and condtion, sound, and free from foreign materials and from imperfections detrimental to usage of the product.3.4.1 Steel shall be aircraft quality conforming to AMS2301.3.5 Toler
26、ancesShall shall be in accordance with AMS2252.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe vendor of the product 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 perfor
27、m any confirmatory testing deemed necessary to ensure that the product conforms to the specified requirements.4.2 Classification of TestsAll technical requirements of this specification are acceptance tests and shall be performed on each heat or lot as applicable.4.3 Sampling and TestingShall be in
28、accordance with AMS2370.4.4 ReportsThe producer of the product 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
29、 frequency-severity cleanliness rating of each heat, and for hardness, average grain size and bending 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 number(s), AMS6352K, product form, size, and
30、 quantity.4.5 Resampling and RetestingShall be in accordance with AMS2370.5. PREPARATION FOR DELIVERY5.1 IdentificationShall be in accordance with AMS2807.5.2 Protective TreatmentProduct shall be protected from corrosion prior to shipment.SAE INTERNATIONAL AMS6352K Page 5 of 55.3 PackagingThe produc
31、t 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 product to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENTA vendor shall include this specifi
32、cation number and its revision letter in all quotations and when acknowledging purchase orders.7. REJECTIONSProduct not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES8.1 The change bar (|) located in the left margin is for the con
33、venience 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 revision. Change bars and (R) are not use
34、d in original publications, nor in documents that contain editorial revisions only.8.2 Hardness conversion tables for metals are presented in ASTM E 140.8.3 Terms used in AMS are clarified in ARP1917.8.4 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimen
35、sions 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.8.5 Purchase documents should specify not less than the following:AMS6352KProduct form and size of product desiredQuantity of product desiredPREPARED BY AMS COMMITTEE “E“
