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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2009 SAE International All rights reserved. No part of this publication ma
3、y 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 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS5894CAEROSPACEMATERIALSPECIFICATIONAMS5894 REV. C Issued 1993-01 Revised 2009-09 Superseding
5、 AMS5894B Cobalt Alloys, Bars, Sheet, and Plate 60Co 28Cr 4.5W 1.15C Solution Heat Treated RATIONALEAMS5894C revises condition of sheet and plate (3.2.1), adds product form to the reporting requirements (4.4) and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specific
6、ation covers a cobalt alloy in the form of sheet and plate up to 1 inch (25 mm) in nominal thickness or round bars up to 3 1/2 inches (89 mm) in nominal diameter.1.2 Application These products have been used typically for parts requiring wear resistance and minimum galling or seizing tendencies at r
7、oom and elevated temperatures, but usage is not limited to such applications. 2. 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
8、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 Publications Available from SAE International, 400 Commonwealth Drive, Warrendale,
9、PA 15096-0001, Tel: 877-606-7323 (inside USA or Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2261 Tolerances, Nickel, Nickel Alloy, and Cobalt Alloy Bars, Rods, and Wire AMS2269 Chemical Check Analysis Limits, Nickel, Nickel Alloys and Cobalt Alloys AMS2371 Quality Assurance Sampling and T
10、esting, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2750 Pyrometry 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
11、Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS5894C Page 2 of 52.2 ASTM Publications Availabl
12、e from ASTM International, 100 Barr Harbor, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 480/A 480M Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip ASTM E 8/E 8M Tension Testing of Metallic Materials ASTM E 18 Rockwell Hardness of Me
13、tallic Materials ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel and Cobalt Alloys 3. TECHNICAL REQUIREMENTS 3.1 CompositionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E
14、 354, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon 0.90 1.40 Manganese 0.5 2.0 Silicon 0.2 2.0 Phosphorus - 0.04 Sulfur - 0.03 Chromium 28.00 32.00 Tungsten 3.50 5.50 Nickel - 3.0 Molybdenum - 1.50 Iron - 3.0 Cobalt
15、remainder 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2269.3.2 Condition The product shall be supplied in the following condition: 3.2.1 Sheet and Plate Hot rolled, solution heat treated and descaled with a No. 1 finish appearance as described in ASTM A 4
16、80/A480M. 3.2.2 BarSolution heat treated with a turned or ground finish. 3.3 Solution Heat Treatment The product shall be solution heat treated by heating to 2250 F 25 (1232 C 14), holding at heat for a time commensurate with cross-section but not less than 15 minutes, and cooling at a rate equivale
17、nt to a still air cool or faster. Pyrometry shall be in accordance with AMS2750. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS5894C Page 3 of 53.4 Properties The product shall conform to th
18、e following requirements: 3.4.1 Tensile Properties Shall be shown in Table 2; determined in accordance with ASTM E 8/E 8M. Bars shall be tested in the longitudinal direction. Sheet and plate shall be tested in the transverse direction. Reduction in area is not applicable to plate or sheet under 0.5
19、inches (12.7 mm) in nominal thickness. TABLE 2 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength 130 ksi (896 MPa) Yield Strength at 0.2% Offset 70 ksi (483 MPa) Elongation in 4D 5% Reduction of Area 7% 3.4.2 HardnessShall be 33 to 43 HRC, determined in accordance with ASTM E 18. 3.5 Qual
20、ity 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. 3.6 Tolerances Shall conform to all applicable requirements of the following: 3.6.1 Bars Shall be in accordance with
21、 AMS2261. 3.6.2 Sheet and Plate Not applicable unless separately agreed upon. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility 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
22、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 applicable. 4.3 Sampling and Testing S
23、hall be in accordance with AMS2371. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS5894C Page 4 of 54.4 ReportsThe vendor of the product shall furnish with each shipment a report showing the
24、results of tests for composition of each heat and for tensile properties and hardness 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, AMS5894C, product form, size, and quantity. 4.5 Res
25、ampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 IdentificationShall be as follows: 5.1.1 Bars In accordance with AMS2806. 5.1.2 Sheet and Plate In accordance with AMS2807. 5.2 PackagingThe product shall be prepared for shipment in accordance with commercial
26、 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. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and
27、when acknowledging purchase orders. 7. REJECTIONS Products not conforming 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 re
28、visions, 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 documents that contai
29、n editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. 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 an
30、d are presented only for information. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS5894C Page 5 of 58.4 Purchase documents should specify not less than the following: AMS5894CProduct form and size of product desired Quantity of product desired. PREPARED BY AMS COMMITTEE “F” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
