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/AMS5876D AEROSPACE MATERIAL SPECIFICATION AMS5876 REV. D Issued 1984-10 Revised 2
5、009-04 Reaffirmed 2014-06 Superseding AMS5876C Cobalt Alloy, Corrosion and Heat-Resistant, Strip 20Cr - 15Ni - 40Co - 7.0Mo - 16Fe Vacuum Induction Plus Consumable Electrode Remelted Solution Heat Treated and Cold Rolled (Composition similar to UNS R30003) RATIONALE This document has been reaffirmed
6、 to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant cobalt alloy in the form of strip 0.100 inch (2.54 mm) and under in specified thickness and 4.000 inches (101.60 mm) and under in specified width. 1.2 Application This strip ha
7、s been used typically for springs requiring a combination of high strength up to 800 F (427 C) after aging, excellent corrosion resistance, and good fatigue properties, but usage is not limited to such applications. The alloy is nonmagnetic. 2. APPLICABLE DOCUMENTS The issue of the following documen
8、ts in effect on the date of the purchase order forms a part of this specification to the extent supplied 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
9、 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. AMS2269 Chemical Check Analysis Limi
10、ts, Wrought Nickel Alloys and Cobalt Alloys AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2750 Pyrometry AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet,
11、 Strip, Plate, and Aircraft Tubing SAE INTERNATIONAL AMS5876D Page 2 of 6 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 E 8/E 8M Tensile Testing of Metallic Materials ASTM E 18 Ro
12、ckwell Hardness of Metallic Materials ASTM E 354 Chemical Analysis of High Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel and Cobalt Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in
13、accordance with ASTM E 354, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon - 0.15 Manganese 1.5 2.5 Silicon - 1.20 Phosphorus - 0.015 Sulfur - 0.015 Chromium 19.0 21.0 Nickel 14.0 16.0Cobalt 39.0 41.0Molybdenum 6.0 8.0
14、 Beryllium - 0.10 Iron remainder 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2269. 3.2 Melting Practice Alloy shall be produced by multiple melting using vacuum induction followed by vacuum consumable electrode or electroslag remelting practices. 3.3 Cond
15、ition Solution heat treated and cold rolled. 3.4 Solution Heat Treatment Strip shall be solution heat treated by heating to 2150 F 25 (1177 C 14), holding at heat for a time commensurate with section thickness, and cooling as required. Pyrometry shall be in accordance with AMS2750. SAE INTERNATIONAL
16、 AMS5876D Page 3 of 6 3.5 Properties Strip shall conform to the following requirements: 3.5.1 As Solution Heat Treated and Cold Rolled 3.5.1.1 Tensile Properties Shall be as shown in Table 2, determined in accordance with ASTM E 8/E 8M: TABLE 2A - MINIMUM TENSILE STRENGTH, INCH/POUND UNITS Specified
17、 Thickness Inch Tensile Strengthksi Up to 0.0043, incl 260 Over 0.0043 to 0.01875, incl 250 Over 0.01875 to 0.025, incl 240 Over 0.025 to 0.047, incl 220 Over 0.047 to 0.075, incl 180 Over 0.075 to 0.100, incl 130 TABLE 2B - MINIMUM TENSILE STRENGTH, SI UNITS Specified Thickness Millimeters Tensile
18、StrengthMPa Up to 0.109, incl 1 793 Over 0.109 to 0.4762, incl 1 724 Over 0.4762 to 0.64, incl 1 655 Over 0.64 to 1.19, incl 1 517 Over 1.19 to 1.90, incl 1 241 Over 1.90 to 2.54, incl 896 3.5.2 After Aging Strip shall meet the requirements of 3.5.2.1 and 3.5.2.2 after being aged by heating to a tem
19、perature within the range 850 to 950 F (454 to 510 C), holding at the selected temperature within 25 F (14 C) for 5 to 51/2 hours, and cooling to room temperature at a rate equivalent to air cooling. 3.5.2.1 Tensile Properties Shall be as shown in Table 3, determined in accordance with ASTM E 8/E 8M
20、. TABLE 3A - MINIMUM TENSILE PROPERTIES, INCH/POUND UNITS Specified Thickness Inch Tensile Strengthksi Yield Strength at 0.2% Offset, ksi Elongation in 2 Inches % Up to 0.0043, incl 325 250 - Over 0.0043 to 0.01875, incl 315 225 - Over 0.01875 to 0.025, incl 300 225 1 Over 0.025 to 0.047, incl 275 2
21、25 1 Over 0.047 to 0.075, incl 225 160 3 Over 0.075 to 0.100, incl 170 100 17 SAE INTERNATIONAL AMS5876D Page 4 of 6 TABLE 3B - MINIMUM TENSILE PROPERTIES, SI UNITS Specified Thickness Millimeters Tensile StrengthMPa Yield Strength at 0.2% Offset, MPa Elongation in 50.8 mm % Up to 0.109, incl 2 241
22、1 724 - Over 0.109 to 0.4762, incl 2 172 1 551 - Over 0.4762 to 0.64, incl 2 068 1 551 1 Over 0.64 to 1.19, incl 1 896 1 551 1 Over 1.19 to 1.90, incl 1 551 1 103 3 Over 1.90 to 2.54, incl 1 172 689 17 3.5.2.1.1 Elongation requirements do not apply to strip 0.01875 inch (0.4762 mm) and under in spec
23、ified thickness. 3.5.2.2 Hardness Shall be not lower than 46 HRC, or equivalent (See 8.2), determined in accordance with ASTM E 18. 3.6 Quality Strip, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usa
24、ge of the strip. 3.7 Tolerances Width and thickness tolerances shall be in accordance with Table 4 and Table 5, respectively. 3.7.1 Width Shall be as shown in Table 4. TABLE 4A - WIDTH TOLERANCES, INCH/POUND UNITS Specified Width Inches Tolerance, Inch plus and minus Up to 0.3755, incl 0.0030 Over 0
25、.3755 to 0.4999, incl 0.0040 Over 0.4999 to 4.0000, incl 0.0050 TABLE 4B - WIDTH TOLERANCES, SI UNITS Specified Width Millimeters Tolerance, Millimeter plus and minus Up to 9.538, incl 0.076 Over 9.538 to 12.697, incl 0.102 Over 12.697 to 101.60, incl 0.127 SAE INTERNATIONAL AMS5876D Page 5 of 6 3.7
26、.2 Thickness Shall be as shown in Table 5. TABLE 5A - THICKNESS TOLERANCES, INCH/POUND UNITS Specified Thickness Inch Tolerance, Inch plus and minus 0.001 to 0.002, incl 0.00015 Over 0.002 to 0.004, incl 0.0002 Over 0.004 to 0.006, incl 0.0003 Over 0.006 to 0.009, incl 0.0004 Over 0.009 to 0.012, in
27、cl 0.0005 Over 0.012 to 0.015, incl 0.00065 Over 0.015 to 0.020, incl 0.00075 Over 0.020 to 0.025, incl 0.0010 Over 0.025 to 0.030, incl 0.00125 Over 0.030 to 0.050, incl 0.0015 Over 0.050 to 0.070, incl 0.00175 Over 0.070 to 0.100, incl 0.002 TABLE 5B - THICKNESS TOLERANCES, SI UNITS Specified Thic
28、kness Millimeters Tolerance, Millimeter plus and minus 0.02 to 0.05, incl 0.0038 Over 0.05 to 0.10, incl 0.005 Over 0.10 to 0.15, incl 0.008 Over 0.15 to 0.23, incl 0.010 Over 0.23 to 0.30, incl 0.013 Over 0.30 to 0.38, incl 0.0165 Over 0.38 to 0.51, incl 0.0190 Over 0.51 to 0.64, incl 0.025 Over 0.
29、64 to 0.76, incl 0.0318 Over 0.76 to 1.27, incl 0.038 Over 1.27 to 1.78, incl 0.0444 Over 1.78 to 2.54, incl 0.051 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of strip shall supply all samples for vendors tests and shall be responsible for the performance of all requ
30、ired tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the strip 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 applicabl
31、e. 4.3 Sampling and Testing Shall be in accordance with AMS2371. SAE INTERNATIONAL AMS5876D Page 6 of 6 4.4 Reports The vendor of strip shall furnish with each shipment a report showing the results of tests for composition of each heat and for tensile properties and hardness of each lot, and stating
32、 that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5876D, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accord
33、ance with AMS2807. 5.2 Packaging Strip shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the strip to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMEN
34、T A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Strip not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|) loca
35、ted 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 a document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisio
36、n. 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 presented in ASTM E 140. 8.3 Terms used in AMS are clarified in ARP1917. 8.4 Dimensions and properties in inch/pound units and the Fahrenh
37、eit 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. 8.5 Purchase documents should specify not less than the following: AMS5876D Size of strip desired Quantity of strip desired. PREPARED BY AMS COMMITTEE “F“
