1、AEROSPACE MATERIAL SPECIFICATION AMS5643/H1025 REV. A Issued 2013-11 Revised 2014-12 Superseding AMS5643/H1025 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing and Rings 16Cr - 4.0Ni - 0.30Cb (Nb) - 4.0Cu Solution and Precipitation Heat Treated (H1025) (Composition similar to UNS S17400) RAT
2、IONALE AMS5643/H1025A revises Condition (3.2.2) and Tolerances (3.6), and corrects errors in Table 3 and in the paragraph addressing re-aging (3.4.1.3.3). 1. SCOPE 1.1 Form This specification covers a corrosion-resistant steel product in the solution and precipitation heat treated (H1025) condition.
3、 1.1.1 The aged product may be supplied directly by a mill or by a producer other than the mill. The latter would be accomplished by precipitation heat treatment of solution treated material previously certified to AMS5643. The entity assuming responsibility for the aging operation is designated the
4、 producer of AMS5643/H1025A. 1.2 Application These products have been used typically for parts requiring corrosion resistance and high strength up to 600 F (316 C) but usage is not limited to such applications (See 8.2). 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the d
5、ate 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 superseding document has been specified, the
6、 last published issue of that document shall apply. _ 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
7、use, including any patent infringement arising therefrom, 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
8、International All rights reserved. No part of this 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-
9、606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (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/AMS5643/H1025A SAE INTERNATIO
10、NAL AMS5643/H1025A Page 2 of 5 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. AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium,
11、 and Titanium Alloy Bars and Wire AMS2750 Pyrometry AMS2759/3 Heat Treatment, Precipitation-Hardening Corrosion-Resistant and Maraging Steel Parts AMS5643 Steel, Corrosion Resistant, Bars, Wire, Tubing, and Rings 16Cr - 4.0Ni - 0.30Cb (Nb) 4.0Cu, Solution Heat Treated, Precipitation Hardenable AMS-H
12、-6875 Heat Treatment of Steel Raw Materials 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall be in accordance with AMS5643. 3.2 Condition Shall be in accordance with AMS5643, and the following: 3.2.1 The product shall be supplied in the precipitation hardened (H1025) heat treat condition. 3.2.2 If st
13、ress relieving is requested by the purchaser, heat treatment shall be performed by heating to 925 F 25 F (496 C 14 C) and soaking for at least one hour plus one hour additional for each inch (25 mm) of thickness or fraction thereof greater than 1 inch (25 mm). When load thermocouples are used, the s
14、oaking time shall be at least one hour. (See 3.6) 3.3 Heat Treatment Shall be in accordance with AMS5643 and the following: 3.3.1 Precipitation Heat Treatment 3.3.1.1 Shall be in accordance with the requirements applicable to either AMS-H-6875 or AMS2759/3 at the vendors option, except acceptance te
15、sting and criteria shall be as specified in 3.4.1.3. Precipitation heat treatment furnaces shall have Type B instrumentation. 3.3.1.2 When the product is precipitation heat treated by an entity other than the mill producer of the AMS5643-certified product, the heat treatment source shall be accredit
16、ed by a recognized industry agency for stainless steel heat treatment acceptable to the purchaser. 3.4 Properties 3.4.1 All products shall conform to the following requirements: 3.4.1.1 Macrostructure Shall be in accordance with AMS5643. 3.4.1.2 Microstructure Shall be in accordance with AMS5643. SA
17、E INTERNATIONAL AMS5643/H1025A Page 3 of 5 3.4.1.3 Tensile Properties Shall be in accordance with the following: 3.4.1.3.1 Bars Product, 8 inches (203 mm) and under in nominal diameter, thickness or for hexagons, least distance between parallel sides, and having a maximum cross-sectional area of 64
18、square inches (413 sq cm) shall be as shown in Table 3. Properties for larger sizes shall be as agreed upon between purchaser and vendor. Tensile testing shall be performed in accordance with ASTM A 370. TABLE 3A - Tensile Properties, Inch/Pound Units Condition Tensile Strength ksi Minimum Yield Str
19、ength at 0.2% Offset ksi Minimum Elongation in 2 Inches or 4D % Minimum Reduction of Area % H1025 155-185 145 12 45 Note: Properties have been taken from the response to heat treatment requirements of AMS5643 and were not independently substantiated using SAE AMS procedures. TABLE 3B - Tensile Prope
20、rties, SI Units Condition Tensile Strength MPa Minimum Yield Strength at 0.2% Offset MPa Minimum Elongation in 50.8mm or 4D % Minimum Reduction of Area % H1025 1069-1276 1000 12 45 Note: Properties have been taken from the response to heat treatment requirements of AMS5643 and were not independently
21、 substantiated using SAE AMS procedures. 3.4.1.3.2 All other product forms: The property requirements of 3.4.1.3.1 shall apply. Test plans shall be as agreed upon between vendor and purchaser. 3.4.1.3.3 When the ultimate tensile strength exceeds 185 ksi, one additional aging cycle may be performed.
22、The set temperature for the additional aging may be higher than 1025 F (552 C), but not more than 25 F (14 C) higher. The soaking time shall be not more than the original precipitation heat treatment cycle. 3.4.1.3.4 When the tensile properties as specified in Table 3 are not met, it is permissible
23、to again perform solution heat treatment in accordance with AMS5643 and precipitation heat treatment to the requirements specified in 3.3, and retest. 3.4.1.4 Hardness Not Applicable 3.5 Quality Shall be in accordance with AMS5643. 3.6 Tolerances Shall be in accordance with AMS5643 and the following
24、: If stress relieved after aging, the straightness tolerance of AMS2241 for heat treated product shall apply. SAE INTERNATIONAL AMS5643/H1025A Page 4 of 5 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor shall supply all samples for vendors tests and shall be responsible
25、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 specified requirements. Applicable acceptance test data generated for prior certification to AMS5643 need not be repeated
26、for certification to AMS5643/H1025A. 4.2 Classification of Tests Shall be in accordance with AMS5643 and the following: 4.2.1 Acceptance Tests 4.2.1.1 Tensile properties (3.4.1.3) and tolerances (3.6) are acceptance tests and shall be performed on each lot. 4.2.2 Sampling and Testing Shall be in acc
27、ordance with AMS5643. 4.2.2.1 Resampling and Retesting Shall be in accordance with AMS5643. 4.3 Reports 4.3.1 Material provided by a producing mill: The vendor of product shall furnish with each shipment a report showing the results of tests for composition and macrostructure rating of each heat and
28、 for tensile 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, AMS5643/H1025A, details of the precipitation heat treatment used (including, if straightened, the subsequent stre
29、ss relief cycle), size, and quantity. If the product size being shipped is different from the nominal metallurgically worked cross-sectional size, details of how the shipped size was extracted from the larger product shall be reported. 4.3.2 Product from other than a producing mill using material pr
30、eviously certified to AMS5643: The vendor of product shall furnish with each shipment the original mill certification of the AMS5643 product and the H1025 heat treatment process certification and test report, including traceability to accreditation of the precipitation heat treat facility (See 3.3.1
31、.2). 5. PREPARATION FOR DELIVERY Shall be in accordance with AMS5643. 6. ACKNOWLEDGMENT Shall be in accordance with AMS5643. 7. REJECTIONS Shall be in accordance with AMS5643. 8. NOTES Shall be in accordance with AMS5643 and the following: SAE INTERNATIONAL AMS5643/H1025A Page 5 of 5 8.1 A change ba
32、r (|) 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) symbol to the left of the document title indicates a complete revision of the document, including tech
33、nical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 When planning a manufacturing operation, users of this product should consider the surface condition that may be on the as-received product. 8.3 Procurement documents should specify not less than the following: AMS5643/H1025A Size of product desired Quantity of product desired. PREPARED BY AMS COMMITTEE “F”
