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 2016 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/AMS5894D AEROSPACE MATERIAL SPECIFICATION AMS5894 REV. D Issued 1993-01 Revised 2
5、016-02 Superseding AMS5894C Cobalt Alloys, Bars, Sheet, and Plate 60Co 28Cr 4.5W 1.15C Solution Heat Treated RATIONALE AMS5894D revises Condition (3.2.2.1), Properties (3.4.1.1) and Reports (4.4), and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers
6、 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 (see 8.4). 1.2 Application These products have been used typically for parts requiring wear resistance and minimum galling or seizing tendencies at ro
7、om 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 a
8、 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, P
9、A 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (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 an
10、d Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2750 Pyrometry SAE INTERNATIONAL AMS5894D Page 2 of 5 AMS2806 Identification Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS2
11、807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet, Strip, Plate, and Aircraft Tubing 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.
12、ASTM A480/A480M Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip ASTM E8/E8M Tension Testing of Metallic Materials ASTM E18 Rockwell Hardness of Metallic Materials ASTM E354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel and Cobalt A
13、lloys 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 E354, by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element min max Carb
14、on 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 remainder 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2269. 3.2 Condition The product s
15、hall 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 A480/A480M. SAE INTERNATIONAL AMS5894D Page 3 of 5 3.2.2 Bar Solution heat treated with a turned or ground finish. 3.2.2.1 Bars shall
16、not be cut from plate (also see 4.4.2). 3.3 Solution Heat Treatment The product shall be solution heat treated by heating to 2250 F 25 F (1232 C 14 C), holding at heat for a time commensurate with cross-section but not less than 15 minutes, and cooling at a rate equivalent to a still air cool or fas
17、ter. Pyrometry shall be in accordance with AMS2750. 3.4 Properties The product shall conform to the following requirements: 3.4.1 Tensile Properties Shall be shown in Table 2; determined in accordance with ASTM E8/E8M. Bars shall be tested in the longitudinal direction. Sheet and plate shall be test
18、ed in the transverse direction. Reduction in area is not applicable to plate or sheet under 0.5 inches (12.7 mm) in nominal thickness. 3.4.1.1 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer. Table 2 - Minimum tensi
19、le 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 Hardness Shall be 33 to 43 HRC, determined in accordance with ASTM E18. 3.5 Quality The product, as received by purchaser shall be uniform in
20、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 AMS2261. 3.6.2 Sheet and Plate Not applicable unless separate
21、ly agreed upon. SAE INTERNATIONAL AMS5894D Page 4 of 5 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 the right to sample and
22、 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 Shall be in accordance w
23、ith AMS2371. 4.4 Reports The vendor of the product shall furnish with each shipment a report showing the vendors name and country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations), and the results of tests for composition of each heat and for
24、 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, AMS5894D, product form, size, and quantity. 4.4.1 When the product size is outside the range covered by
25、1.1, the report shall contain a statement to that effect. 4.4.2 If the ship size/shape is cut from a larger cross section, report the nominal metallurgically worked size (also see 3.2.2.1). 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Identificati
26、on Shall be as follows: 5.1.1 Bars In accordance with AMS2806. 5.1.2 Sheet and Plate 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 pertaining to the handling, packagi
27、ng, 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. SAE INTERNATIONAL AMS5894D Page 5 of 5 7. REJECTIONS Products not
28、 conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been m
29、ade 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 contain editorial changes only. 8.2 Terms used in
30、 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 and are presented only for information. 8.4 P
31、urchase documents should specify not less than the following: AMS5894D Product form and size of product desired Quantity of product desired Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range listed in 1.1. PREPARED BY AMS COMMITTEE “F”
