1、 AEROSPACE MATERIAL SPECIFICATION Copper-Beryllium Alloy, Bars and Rods 98Cu - 1.9Be (CDA 172) Hard Temper (TD04) (Composition similar to UNS C17200) AMS 4651C Superseding AMS 4651B1. SCOPE: 1.1 Form: This specification covers a copper-beryllium alloy in the form of bars and rods. 1.2 Application: T
2、hese products have been used typically for parts requiring high strength with good electrical conductivity and the nonmagnetic properties are important, but usage is not limited to such applications. 1.3 Safety - Hazardous Materials: While the materials, methods, applications, and processes describe
3、d or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in each 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 nec
4、essary precautionary measures to ensure the health and safety 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
5、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 last published issue of that document shall apply. Issued 1968-05 Revised 2005-07 Reaffirmed 2010-10 SAE Technical Standards Board
6、 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 therefrom, is the sole responsibilit
7、y 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 2010 SAE International All rights reserved. No part of this publication may be reproduced, stored in a r
8、etrieval 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 USA) Fax: 724-776-0790 Email: Cu
9、stomerServicesae.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/AMS4651C SAE - 2 - AMS 4651C AMS 4651C 2.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 1509
10、6-0001 or www.sae.org. AMS 2221 Tolerances, Copper and Copper Alloy Bars and Rods AMS 2750 Pyrometry 2.2 ASTM Publications: Available from ASTM, 100 Bar Harbor Drive, West Conshohocken, PA 19428-2959 or www.astm.org. ASTM B 249 General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shape
11、s, and Forgings ASTM B 249M General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes, and Forgings (Metric) ASTM E 3 Preparation of Metallographic Specimens ASTM E 8 Tension Testing of Metallic Materials ASTM E 8M Tension Testing of Metallic Materials (Metric) ASTM E 18 Rockwell Har
12、dness and Rockwell Superficial Hardness of Metallic Materials ASTM B 194 Annex Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar ASTM E 112 Determining the Average Grain Size 3. TECHNICAL REQUIREMENTS: 3.1 Composition: Shall conform to the percentages by weight shown in Table 1, determined
13、by the chemical methods in accordance with ASTM B 194; by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element (3.1.1) min max Beryllium 1.80 2.00 Nickel plus Cobalt 0.20 - Nickel plus Cobalt plus Iron - 0.6 Aluminum - 0.20 Silicon - 0.20 Lea
14、d - 0.20 Copper (see 3.1.2) - Sum of Named Elements (3.1.3) 99.5 - 3.1.1 These composition limits do not preclude the presence of other elements. Limits may be established and analysis required for unnamed elements by agreement between the manufacturer or supplier and purchaser. SAE - 3 - AMS 4651C
15、AMS 4651C 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 all the elements in the table are analyzed, the sum shall be 99.5% minimum, but such determination is not required for rou
16、tine acceptance of each lot. 3.2 Condition: Solution heat treated and cold worked to hard temper (TD04), in a suitable condition for precipitation heat treatment. 3.3 Properties: The product shall conform to the following requirements: The applicable limits are those that apply to the specified (ord
17、ered) dimension. 3.3.1 As Solution Heat Treated and Cold Rolled: 3.3.1.1 Tensile Properties: Shall be shown in Table 2, determined in accordance with ASTM E 8, or ASTM E 8M: TABLE 2A - Tensile Properties, Inch/Pound Units Nominal Diameter or Distance Between Parallel Sides Inches Tensile Strength ks
18、i Elongation in 4D %, minimum Up to 0.375, incl 95.0 to 130.0 10 Over 0.375 to 1.000, incl 90.0 to 120.0 10 Over 1.000 to 2.000, incl 85.0 to 115.0 8 TABLE 2B - Tensile Properties, SI Units Nominal Diameter or Distance Between Parallel Sides Millimeters Tensile Strength MPa Elongation in 4D %, Minim
19、um Up to 9.52, incl 655 to 896 10 Over 9.52 to 25.40, incl 621 to 827 10 Over 25.40 to 50.80, incl 586 to 793 8 3.3.1.2 Hardness: Should be as shown in Table 3 or equivalent, determined in accordance with ASTM E 18, but the product shall not be rejected on the basis of hardness if the tensile proper
20、ty requirements of 3.3.1.1 are met on material from the same lot with similar nonconforming hardness. SAE - 4 - AMS 4651C AMS 4651C TABLE 3 - Hardness Nominal Diameter or Least Distance Between Parallel Sides Inches Nominal Diameter or Least Distance Between Parallel Sides Millimeters Hardness HRB O
21、ver 0.188 to 0.249, incl Over 4.78 to 6.32, incl 88 to 96 Over 0.249 to 0.375, incl Over 6.32 to 9.52, incl 92 to 103 Over 0.375 to 1.000, incl Over 9.52 to 25.40, incl 91 to 102 Over 1.000 to 2.000, incl Over 25.40 to 50.80, incl 88 to 101 3.3.1.3 Microstructure: Shall reveal not more than 6% beta
22、phase. Any beta phase present shall be fine and well dispersed. Product may be precipitation heat treated as in 3.3.2 before examination. Specimen shall be prepared in accordance with ASTM E 3 or other suitable procedure. 3.3.1.4 Grain Size: Shall be not larger than as shown in Table 4, determined i
23、n accordance with ASTM E 112. Product may be precipitation heat treated as in 3.3.2 before determining grain size. TABLE 4 - Maximum Average Grain Size Nominal Diameter or Distance Between Parallel Sides Inches Nominal Diameter or Distance Between Parallel Sides Millimeters Average Grain Size Millim
24、eter Up to 1.500, excl Up to 38.10, excl 0.050 1.500 to 2.000, incl 38.10 to 50.80, incl 0.075 3.3.2 After Precipitation Heat Treatment: The product shall have the following properties after being precipitation heat treated by heating in the range 600 to 660 F (315 to 349 C), holding at heat for 2 t
25、o 3 hours, and cooling in air. Pyrometry shall be in accordance with AMS 2750. 3.3.2.1 Tensile Properties: Shall be as specified in Table 5. TABLE 5A - Tensile Properties, Inch/Pound Units Nominal Diameter or Distance Between Parallel Sides Inches Tensile Strength ksi Yield Strength at 0.2% Offset k
26、si, minimum Elongation in 4D %, minimum Up to 0.375, incl 185.0 to 215.0 145.0 2 Over 0.375 to 1.000, incl 180.0 to 210.0 145.0 2 Over 1.000 to 3.000, incl 175.0 to 205.0 145.0 3 TABLE 5B - Tensile Properties, SI Units Nominal Diameter or Distance Between Parallel Sides Millimeters Tensile Strength
27、MPa Yield Strength at 0.2% Offset MPa, min Elongation in 4D %, min Up to 9.52, incl 1276 to 1482 1000 2 Over 9.52 to 25.40, incl 1241 to 1448 1000 2 Over 25.40 to 76.20, incl 1207 to 1413 1000 3 SAE - 5 - AMS 4651C AMS 4651C 3.3.2.2 Hardness: Should be as shown in Table 6, determined in accordance w
28、ith ASTM E 18, but the product shall not be rejected on the basis of hardness if the tensile property requirements of 3.3.2.1 are met on material from the same lot with similar nonconforming hardness. TABLE 6 - Hardness Nominal Diameter or Least Distance Between Parallel Sides Inches Nominal Diamete
29、r or Least Distance Between Parallel Sides Millimeters Hardness HRC min Hardness HRC max Up to 0.249, incl Up to 6.32, incl 40 Over 0.249 to 0.375, incl Over 6.32 to 9.52, incl 39 45 Over 0.375 to 1.000, incl Over 9.52 to 25.40, incl 38 44 Over 1.000 to 2.000, incl Over 25.40 to 50.80, incl 37 45 3.
30、4 Quality: 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. 3.5 Tolerances: The product shall conform to AMS 2221 as applicable to refractory alloys. 4. QUALITY ASSURAN
31、CE 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 to perform any confirmatory testing deemed necessary to ensure that th
32、e product conforms to specified requirements. 4.2 Classification of Tests: 4.2.1 Acceptance Tests: Composition (3.1), tensile properties (3.3.1.1 and 3.3.2.1), and tolerances (3.5) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Periodic Tests: Microstructure (3.
33、3.1.3), hardness (3.3.1.2 and 3.3.2.2) and grain size (3.3.1.4) requirements are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing: Shall be in accordance with ASTM B 249 or ASTM B 249M and the
34、following. SAE - 6 - AMS 4651C AMS 4651C 4.3.1 The axis of tensile specimens shall be located approximately midway between center and surface of product over 1.500 inches (38.10 mm) in nominal diameter or distance between parallel sides. 4.4 Reports: The vendor of the product shall furnish with each
35、 shipment a report stating that the product conforms to the chemical composition and tolerances showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements and stating that the product conforms to the other specified requirements.
36、This report shall include the purchase order number, inspection lot number(s), AMS 4651C, size and quantity. The report shall also identify the producer, the mill product form, and the mill produced size. 4.5 Resampling and Retesting: Failure of any specimen to meet specified requirements shall caus
37、e product represented by such specimens to be subject to rejection. A retest sample of at least two specimens shall be randomly selected to replace each failed specimen from the original sample. All retest samples shall conform to specified requirements. If any retest specimen fails to meet specifie
38、d requirements, the product represented shall be rejected. 5. PREPARATION FOR DELIVERY: 5.1 Identification: Individual pieces or bundles shall have attached a suitable tag legibly marked with the purchase order number, lot number, AMS 4651C, nominal size and shall be boxed and the box marked with th
39、e same information. 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, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACK
40、NOWLEDGMENT: 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 to rejection. SAE - 7 - AMS 4651C
41、AMS 4651C 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 a specification. An (R) symbol to the left of the document title indicates a complete rev
42、ision of the specification, including technical revision. Change bars and (R) are not used in original publications, nor in specifications 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 D
43、imensions 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. 8.5 Purchase documents should specify not less than the following: AMS 4651C Form and size of product desired Quantity of product desired. 8.6 Key Words: Copper, beryllium, bar, rod, 172, CDA 172, UNS C17200 PREPARED UNDER JURISDICTION OF AMS COMMITTEE “D”
