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 2014 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/AMS5912B AEROSPACE MATERIAL SPECIFICATION AMS5912 REV. B Issued 1992-01 Revised 2
5、009-04 Reaffirmed 2014-06 Superseding AMS5912A Steel, Corrosion-Resistant, Sheet and Strip 19Cr - 9.2Ni (SAE 30304) Cold Rolled, 3/4 Hard, 175 ksi (1207 MPa) Tensile Strength (Composition similar to UNS S30400) RATIONALE This document has been reaffirmed to comply with the SAE five-year review polic
6、y. 1. SCOPE 1.1 Form This specification covers a corrosion-resistant steel in the form of sheet and strip. 1.2 Application These products have been used typically for applications requiring moderate forming and bending, but usage is not limited to such applications. 1.2.1 Mechanical properties speci
7、fied herein are obtained by cold working (strain hardening), and not by heat treatment. Therefore, the cold-worked product should not be heated to a temperature which adversely affects the mechanical properties or corrosion-resistance before, during, or after fabrication. 2. APPLICABLE DOCUMENTS The
8、 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 has been cancelled
9、 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 (outside USA), www.sae.org. AMS2
10、242 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Sheet, Strip, and Plate AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2371 Quality Assurance Sampling an
11、d 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 Alloys, Sheet, Strip, Plate, and Aircraft Tubing SAE INTERNATIONAL AMS5912B Page 2 of 5 2.2 ASTM Publications Ava
12、ilable 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 Products ASTM E 290 Bend Testing of Material for Ductility ASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maragi
13、ng, and Other Similar Chromium-Nickel-Iron Alloys ASTM E 384 Microindentation Hardness of Materials 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 353, by spectrochemical methods, or
14、by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon - 0.08 Manganese - 2.00Silicon - 1.00 Phosphorus - 0.040 Sulfur - 0.030Chromium 18.00 20.00 Nickel 8.00 10.50Molybdenum - 0.75 Copper - 0.75 3.1.1 Check Analysis Composition variations shall meet the ap
15、plicable requirements of AMS2248. 3.2 Condition Solution heat treated, descaled unless solution heat treatment is performed in an atmosphere yielding a bright finish, and cold rolled. 3.3 Properties The product shall conform to the following requirements; tensile and hardness properties shall be det
16、ermined in accordance with ASTM A 370: 3.3.1 Tensile Properties Shall be as shown in Table 2 for product over 0.005 inch (0.13 mm) in nominal thickness. SAE INTERNATIONAL AMS5912B Page 3 of 5 TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Property Value Tensile Strength 175 ksi Yield Streng
17、th at 0.2% Offset 135 ksi Elongation in 2 Inches or 4D Nominal Thickness Over 0.005 to 0.015 Inch, incl 3% Over 0.015 inch 5% TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Property Value Tensile Strength 1207 MPa Yield Strength at 0.2% Offset 931 MPa Elongation in 50.8 mm or 4D Nominal Thickness O
18、ver 0.13 to 0.38 mm, incl 3% Over 0.38 mm 5% 3.3.2 Hardness Shall be not lower than 37 HRC, or equivalent (See 8.2). Product shall not be rejected on the basis of hardness if the tensile properties of 3.3.1 are acceptable, determined on specimens taken from the same sample as that with nonconforming
19、 hardness, or from another sample with similar nonconforming hardness. 3.3.2.1 Microhardness testing in accordance with ASTM E 384 may be used for thin gages where superficial hardness testing is impractical. 3.3.3 Bending Product 0.050 inch (1.27 mm) and under in nominal thickness shall be tested i
20、n accordance with ASTM E 290 using specimens prepared nominally 0.75 inch (19.0 mm) in width, with the axis of bend parallel to the direction of rolling, and shall withstand, without cracking, when bending at room temperature through the angle indicated in Table 3 around a diameter equal to the bend
21、 factor times the nominal thickness of the product. In case of dispute, the results of tests using the guided bend test of ASTM E 290 shall govern. TABLE 3 - BENDING Nominal Thickness Angle degrees, min Bend Factor Up to 0.050 inch (1.27 mm), incl 180 3 3.4 Quality The product, as received by purcha
22、ser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the product. 3.5 Tolerances Shall conform to all applicable requirements of AMS2242. SAE INTERNATIONAL AMS5912B Page 4 of 5 4. QUALITY ASSURANCE PROVISIONS 4.1 Respon
23、sibility for Inspection The 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 perform any confirmatory testing deemed necessary to ensure that the product conforms to spec
24、ified requirements. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each heat or lot as applicable. 4.3 Sampling and Testing Shall be in accordance with AMS2371. 4.4 Reports The vendor of the product shall furnish with each shipment a report show
25、ing the results of tests for composition of each heat and for tensile, hardness, and bending properties 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, AMS5912B, size, and quantity. 4.5
26、 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with AMS2807. 5.2 Packaging The product shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations p
27、ertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Product not confo
28、rming to this specification, 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
29、 of a 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 used in original publications, nor in documents that contain editorial changes only. 8.2 Hardness conversion tables for metals are
30、presented in ASTM E 140. SAE INTERNATIONAL AMS5912B Page 5 of 5 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 the Celsius temperatures are shown as the approxima
31、te equivalents of the primary units and are presented only for information. 8.5 Purchase documents should specify not less than the following: AMS5912B Form and size of product desired Quantity of product desired. 8.6 Similar Specifications MIL-S-5059, Type 304, Condition 3/4 Hard, 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“
