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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2012 SAE International All rights reserved. No part of this publication m
3、ay 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 U
4、SA) 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/AMS4534C AEROSPACE MATERIAL SPECIFICATION AMS4534 REV. C Issued 1991-07 Revised 2013-02 Super
5、seding AMS4534B Copper-Beryllium Alloy, Bars and Rods 98Cu - 1.9Be Solution Heat Treated, Cold Worked, and Precipitation Heat Treated (TH04, formerly HT) (Composition similar to UNS C17200) RATIONALE AMS4534C revises solution and precipitation heat treatment times (3.3.1, 3.3.2) and is a Five Year R
6、eview and update of this specification. 1. SCOPE 1.1 Form This specification covers a copper-beryllium alloy in the form of bars and rods. 1.2 Application These products have been used typically for parts requiring a combination of high strength, wear resistance, and corrosion resistance, and where
7、thermal conductivity, electrical conductivity, and low magnetic susceptibility may be important, but usage is not limited to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use
8、 of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and sa
9、fety of all personnel involved. 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 document unless a specific document issue is
10、 specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. SAE AMS4534C Page 2 of 6 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 8
11、77-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2221 Tolerances, Copper and Copper Alloy Bars and Rods AMS2750 Pyrometry 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-95
12、85, www.astm.org. ASTM B 249/B 249M General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, and Shapes ASTM E 3 Preparation of Metallographic Specimens ASTM E 8/E 8M Tension Testing of Metallic Materials ASTM E 18 Rockwell Hardness of Metallic Materials ASTM E 112 Determining Average Grai
13、n Size ASTM E 478 Chemical Analysis of Copper Alloys 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 478, by spectrochemical methods, or by other analytical methods acceptable to purch
14、aser. TABLE 1 - COMPOSITION Element (3.1.1) min max Beryllium 1.80 2.00 Nickel + Cobalt 0.20 - Nickel + Cobalt + Iron - 0.6 Aluminum - 0.20 Silicon - 0.20 Copper (3.1.2) remainder Sum of Named Elements (3.1.3) 99.5 - 3.1.1 These composition limits do not preclude the presence of other elements. Limi
15、ts may be established and analysis required for unnamed elements by agreement between the manufacturer or supplier and purchaser. 3.1.2 Copper may be reported as “remainder”, or as the difference between the sum of results for all elements and 100%, or as the result of direct analysis. 3.1.3 When al
16、l the elements in the table are analyzed, the sum shall be 99.5% minimum, but such determination is not required for routine acceptance of each lot. 3.2 Condition Hot reduced or hot and cold reduced, solution heat treated, cold worked, and precipitation heat treated, TH04 temper (See 8.2). SAE AMS45
17、34C Page 3 of 6 3.3 Heat Treatment Product shall be heat treated as follows; pyrometry shall be in accordance with AMS2750: 3.3.1 Solution Heat within the range 1400 to 1475 F (760 to 802 C), hold at heat for a minimum of 30 minutes, and water quench. 3.3.2 Precipitation Heat to 600 to 675 F (316 to
18、 357 C), hold at heat for a minimum of 2 hours, and air cool. 3.4 Properties Product shall conform to the following requirements: 3.4.1 Tensile Properties Shall be in accordance with Table 2, determined in accordance with ASTM E 8/E 8M. TABLE 2A - MINIMUM TENSILE PROPERTIES, INCH-POUND UNITS Nominal
19、 Diameter or Least Distance Between Parallel Sides, Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 inches % Up to 0.375, incl 182 157 3 Over 0.375 to 1.000, excl 180 154 3 Over 1.000 to 2.000, excl 177 150 3 Over 2.000 to 2.500, excl 175 147 3 Over 2.500 to 3.000, incl
20、 172 145 3 TABLE 2B - MINIMUM TENSILE PROPERTIES, SI UNITS Nominal Diameter or Least Distance Between Parallel Sides, Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm % Up to 9.52, incl 1255 1082 3 Over 9.52 to 25.40, excl 1241 1062 3 Over 25.40 to 50.80, excl
21、 1220 1034 3 Over 50.80 to 63.50, excl 1207 1014 3 Over 63.50 to 76.20, incl 1186 1000 3 3.4.2 Hardness Bars and rods 0.188 to 2.0 inches (4.78 to 50.8 mm), inclusive, in nominal diameter or least distance between parallel sides shall have hardness of 37 to 45 HRC, or equivalent (See 8.3) determined
22、 in accordance with ASTM E 18. 3.4.3 Average Grain Size The product shall have average grain size not larger than shown in Table 3, determined in accordance with ASTM E 112. SAE AMS4534C Page 4 of 6 TABLE 3 - MAXIMUM AVERAGE GRAIN SIZE Nominal Diameter or Least Distance Between Parallel Sides, Inche
23、s Nominal Diameter or Least Distance Between Parallel Sides, Millimeters Maximum Average Grain Size Millimeter Up to 1.000, incl Up to 25.40, incl 0.050 1.000 to 1.500, incl 25.40 to 38.10, incl 0.075 1.500 to 2.000, incl 38.10 to 50.80, incl 0.100 2.000 to 3.000, incl 50.80 to 76.20, incl 0.125 3.4
24、.4 Microstructure Product shall contain not more than 6% beta phase constituent, determined at 100X magnification on specimens prepared in accordance with ASTM E 3. 3.5 Quality Product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and fr
25、om imperfections detrimental to usage of the product. 3.6 Tolerances Shall conform to AMS2221 as applicable to refractory alloys. 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 pe
26、rformance 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. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each h
27、eat or lot as applicable. 4.3 Sampling and Testing Shall be in accordance with ASTM B 249/B 249M and the following; a lot shall be all product with the same form, from the same heat, processed at one time through all steps of manufacture. 4.3.1 One or more chemical analysis samples from each heat sh
28、all be analyzed in accordance with 3.1. 4.3.2 One or more longitudinal tensile specimens from each lot shall be tested in accordance with 3.4.1. The axis of tensile specimens shall be located midway between the center and surface of product over 1.500 inches (38.10 mm) in nominal cross-sectional thi
29、ckness. 4.3.3 One or more hardness specimens from each lot shall be tested in accordance with 3.4.2. 4.3.4 One or more specimens for grain size from each lot shall be tested in accordance with 3.4.3. 4.3.5 One or more specimens for microstructure from each lot shall be tested in accordance wth 3.4.4
30、. SAE AMS4534C Page 5 of 6 4.4 Reports The vendor of the product shall furnish with each shipment a report showing the results of tests on each lot to determine conformance to the technical requirements. This report shall include the purchase order number, lot number, AMS4534C, size, and quantity. 4
31、.5 Resampling and Retesting If any specimen used in the above tests fails to meet the specified requirements, disposition of the product may be based on the results of testing two additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requ
32、irements shall be cause for rejection of the product represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Identification Individual pieces or bundles shall have attached a durable tag marked with not less than the purchase order number, AMS4534C, and nominal size or s
33、hall be boxed and the box marked with the same information. 5.2 Packaging Product 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 product to ensure carrier a
34、cceptance 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 conforming to this specification, or to modifications authorized by purchaser, will be subject t
35、o 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 of this document. An (R) symbol to the left of the document title indicates a complete rev
36、ision 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 Copper temper designations are defined in ASTM B 601. 8.3 Hardness conversion tables for metals are presented in ASTM E 140. 8.4
37、Terms used in AMS are clarified in ARP1917. 8.5 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. SAE AMS4534C Page 6 of 6 8.6 Purchase documents should specify not less than the following: AMS4534C Product form and size of product desired Quantity of product desired. PREPARED BY AMS COMMITTEE “D“
