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 ther
2、efrom, 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 2018 SAE International All rights reserved. No part of this
3、publication 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: +1 724-776-49
4、70 (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:/standards.sae.org/AMS7707E AEROSPACE MATERIAL SPECIFICATION AMS7707 REV. E Issued 1957-09 Reaffirmed 2007-09 Rev
5、ised 2018-01 Superseding AMS7707D Iron, Commercially Pure, Bar, Sheet, Strip, and Plate Hot Rolled, Unannealed (Composition similar to UNS K00095) RATIONALE AMS7707E results from a Five-Year Review and update of this specification that revises composition testing specifications (3.1), adds strain ra
6、te control on tensile testing (3.3.1.1) and revises reporting (4.4) and identification (5.1). 1. SCOPE 1.1 Form This specification covers electrical iron in the form of bar, sheet, strip, and plate. 1.2 Application These products have been used typically for direct current devices, such as controls,
7、 relay and regulator parts, magnetic cores, and motor and generator parts requiring a combination of high electrical conductivity, high magnetic saturation and permeability, and low magnetic retentivity, and where fair formability is required, but usage is not limited to such applications. 2. APPLIC
8、ABLE 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 document
9、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 +1 724-776-4970 (outside US
10、A), www.sae.org. AMS2231 Tolerances Carbon Steel Bars AMS2232 Tolerances Carbon Steel, Sheet, Strip, and Plate AMS2259 Chemical Check Analysis Limits Wrought Low-Alloy and Carbon Steels AMS2370 Quality Assurance Sampling and Testing Carbon and Low-Alloy Steel Wrought Products and Forging Stock SAE I
11、NTERNATIONAL AMS7707 E Page 2 of 5 AMS2806 Identification Bars, Wire, Mechanical Tubing, and Extrusions Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS2807 Identification Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys Sheet, Strip, Plate, a
12、nd Aircraft Tubing ARP1917 Clarification of Terms Used in Aerospace Metals Specifications 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, www.astm.org. ASTM A370 Mechanical Testing of Steel Products A
13、STM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness 3
14、. 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 A751, by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element Percent Carbon + Ma
15、nganese + Silicon + Phosphorus + Sulfur 0.10 max Phosphorus 0.010 max Sulfur 0.030 max Copper 0.15 max Iron remainder 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2259. 3.2 Condition Hot rolled. 3.3 Properties The product shall conform to the following req
16、uirements; hardness and tensile testing shall be determined in accordance with ASTM A370: 3.3.1 Tensile Properties Shall be as shown in Table 2. SAE INTERNATIONAL AMS7707 E Page 3 of 5 Table 2 - Tensile properties Property Value Tensile Strength, max 65 ksi (450 MPa) Yield Strength at 0.2% Offset, m
17、ax 55 ksi (380 MPa) Elongation in 2 inches (50.8 mm) or 4D, min 25% 3.3.1.1 Unless otherwise specified, the strain rate shall be set at 0.005 inch/inch/minute (0.005 mm/mm/minute) and maintained within a tolerance of 0.002 inch/inch/minute (0.002 mm/mm/minute) through 0.2% offset yield strain. After
18、 the yield strain, the speed of the testing machine shall be set between 0.05 and 0.5 inch/inch (mm/mm) of the length of the reduced section (or distance between the grips for specimens not having a reduced section) per minute. Alternatively, an extensometer and strain rate indicator may be used to
19、set the strain rate between 0.05 and 0.5 inch/inch/min (mm/mm/minute). 3.3.2 Hardness Shall be not higher than shown in 3.3.2.1 or Table 3, or equivalent (see 8.2). Product shall not be rejected on the basis of hardness if the tensile property requirements are acceptable, determined on specimens tak
20、en from the same sample as that with nonconforming hardness or from a sample with similar nonconforming hardness. 3.3.2.1 Bars 80 HRB, maximum. 3.3.2.2 Sheet Table 3 - Maximum hardness Nominal Thickness Inches Nominal Thickness Millimeters Hardness HRB Up to 0.0625, excl Up to 1.55, excl 80 0.0625 a
21、nd over 1.55 and over 75 3.3.2.3 Strip and Plate As agreed upon by purchaser and purchaser. 3.3.3 Magnetic Properties If required, shall be as agreed upon by purchaser and purchaser, determined on product suitably annealed (see 8.5). 3.3.4 Bending and Forming Properties If required, shall be as agre
22、ed upon by purchaser and purchaser (see 8.5). 3.4 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the product. SAE INTERNATIONAL AMS7707 E Page 4 of 5 3.5 Tolerances Shall
23、be as follows: 3.5.1 Bars In accordance with AMS2231. 3.5.2 Sheet, Strip, and Plate In accordance with AMS2232. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producerrs tests and shall be responsible for the performance of
24、all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each heat or lot as
25、 applicable. 4.3 Sampling Shall be in accordance with AMS2370. 4.4 Reports 4.4.1 The purchaser of the product shall furnish with each shipment a report showing the results of tests for the composition of each heat and for tensile properties, hardness, magnetic properties including the annealing cycl
26、e used (if specified), and bending and forming properties (if specified) 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, AMS7707E, product form and size (and/or part number if applicabl
27、e), and quantity. 4.4.2 When material produced to this specification is beyond the sizes allowed in the scope or tables, or other exceptions are taken to the technical requirements listed in Section 3, (see 5.1) the report shall contain a statement “This material is certified as AMS7707E(EXC) becaus
28、e of the following exceptions:“ and the specific exceptions shall be listed. 4.5 Resampling and Retesting Shall be in accordance with AMS2370. 5. PREPARATION FOR DELIVERY 5.1 Identification When technical exceptions are taken (see 4.4.2), the material shall be marked with AMS7707E(EXC). 5.1.1 Bars I
29、n accordance with AMS2806. 5.1.2 Sheet, Strip, and Plate In accordance with AMS2807. SAE INTERNATIONAL AMS7707 E Page 5 of 5 5.2 Protective Treatment Product shall be protected from corrosion prior to shipment. 5.3 Packaging The product shall be prepared for shipment in accordance with commercial pr
30、actice 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. ACKNOWLEDGMENT A purchaser shall include this specification number and its revision letter in all quotations and
31、when acknowledging purchase orders. 7. REJECTIONS Product 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 (I) located in the left margin is for the convenience of the user in locating areas
32、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 original publications, nor in doc
33、uments that contain editorial changes only. 8.2 Hardness conversion tables for metals are presented in ASTM E140. 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; dimensions and properties in SI units and t
34、he 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: AMS7707E Product form and size (and/or part number, if applicable) of product desired Method of testing and magnetic properties desired (3.3.3) Bending and forming properties desired (3.3.4) Quantity of product desired PREPARED BY AMS COMMITTEE “E”
