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/AMS4610N AEROSPACE MATERIAL SPECIFICATION AMS4610 REV. N Issued 1939-12 Revised 2
5、003-10 Reaffirmed 2014-04 Superseding AMS4610M Brass, Free-Cutting Bars and Rods 61.5Cu - 35Zn - 3.1Pb Half Hard (H02) (Composition similar to UNS C36000) RATIONALE AMS4610N has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE: 1.1 Form: This specification covers one type of
6、copper alloy (brass) in the form of bars and rods. 1.2 Applications: These products have been used typically for automatic high-speed screw machine parts where free-cutting characteristics are desirable, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS: The issue of the followi
7、ng 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 specified. When the referenced document has been cancelled and no superseding d
8、ocument has been specified, the last published issue of that document shall apply. 2.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001 or www.sae.org. AMS 2221 Tolerances, Copper and Copper Alloy Bars and Rods 2.2 ASTM Publications: Available from ASTM, 100 Ba
9、rr Harbor Drive, West Conshohocken, PA 19428-2959 or www.astm.org. ASTM B 154 Mercurous Nitrate Test for Copper and Copper Alloys ASTM B 249 General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes, and Forgings SAE INTERNATIONAL AMS4610N Page 2 of 6 2.1 (Continued): ASTM B 249 Gene
10、ral Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes, and Forgings ASTM B 858 Ammonia Vapor Test for Determination of Susceptibility to Stress Corrosion Cracking in Copper Alloys ASTM E 8 Tension Testing of Metallic Materials ASTM E 8M Tension Testing of Metallic Materials (Metric)
11、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 purchaser.
12、 TABLE 1 - Composition Element (3.1.1) min max Copper 60.0 63.0 Lead 2.5 3.7 Iron - 0.35 Sum of Named Elements (3.1.3) 99.5 - Zinc (See 3.1.2) remainder - 3.1.1 These composition limits do not preclude the presence of other elements. Limits may be established and analysis required for unnamed elemen
13、ts by agreement between the manufacturer or supplier and purchaser. 3.1.2 Zinc may be reported as “remainder”, 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 named elements in Table 1 are analyzed, the sum shall be 99.5 per
14、cent minimum, but such determination is not required for routine acceptance of each lot. 3.2 Condition: Cold finished, half-hard (H02) temper (See 8.3). 3.3 Properties: The product shall conform to the following requirements: 3.3.1 Tensile Properties: Shall be as shown in Table 2 or Table 3, determi
15、ned in accordance with ASTM E 8 or ASTM E 8M except as specified in 4.3.2.1. SAE INTERNATIONAL AMS4610N Page 3 of 6 3.3.1.1 Rounds, Hexagons, and Octagons: TABLE 2A - Minimum Tensile Properties, Inch/Pound Units Nominal Diameter or Distance Between Parallel Sides Inches Tensile Strength ksi Yield St
16、rengthat 0.2% Offsetksi Elongation in 2 Inches or 4D % Up to 0.500, incl 60.0 28.0 10 (See 3.3.1.3)Over 0.500 to 1.000, incl 55.0 25.0 15 Over 1.000 to 2.000, incl 50.0 20.0 20 Over 2.000 45.0 15.0 15 TABLE 2B - Minimum Tensile Properties, SI Units Nominal Diameter or Distance Between Parallel Sides
17、 Millimeters Tensile Strength MPa Yield Strengthat 0.2% OffsetMPa Elongation in 50.8 mm or 4D % Up to 12.70, incl 414 193 10 (See 3.3.1.3)Over 12.70 to 25.40, incl 379 172 15 Over 25.40 to 50.80, incl 345 138 20 Over 50.80 310 103 15 3.3.1.2 Squares and Rectangles: TABLE 3A - Minimum Tensile Propert
18、ies, Inch/Pound Units Nominal Thickness Inches Nominal Thickness Inches Tensile Strengthksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D % Up to 0.500, incl Up to 1.000, incl 50.0 25.0 10 (See 3.3.1.3)Over 1.000 to 6.000, incl 45.0 17.0 15 (See 3.3.1.3)Over 0.500 to 2.000, incl Up
19、to 2.000, incl 45.0 17.0 20 Over 2.000 to 6.000, incl 40.0 15.0 Over 2.000 Over 40.0 15.0 20 TABLE 3B - Minimum Tensile Properties, SI Units Nominal Thickness Millimeters Nominal Thickness Millimeters Tensile StrengthMPa Yield Strengthat 0.2% OffsetMPa Elongation in 50.8 mm or 4D % Up to 12.70, incl
20、 Up to 25.40, incl 345 172 10 (See 3.3.1.3) Over 25.40 to 152.40, incl 310 117 15 (See 3.3.1.3) Over 12.70 to 50.80, incl Up to 50.80, incl 310 117 20 Over 50.80 to 152.40, incl 276 103 Over 50.80 Over 50.80 to 101.60, incl 276 103 20 3.3.1.3 In no case shall the gage length be less than 1 inch (25
21、mm). SAE INTERNATIONAL AMS4610N Page 4 of 6 3.3.2 Embrittlement: Specimens as in 4.3.3.1 shall withstand, without cracking, immersion in mercurous nitrate solution in accordance with ASTM B 154, Procedure A, or the Ammonia Vapor Test in accordance with ASTM B 858M. 3.4 Quality: The product, as recei
22、ved 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: Shall conform to AMS 2221 as applicable to nonrefractory alloys. 4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibility for Ins
23、pection: 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 the product conforms to specified requireme
24、nts. 4.2 Classification of Tests: All technical requirements are acceptance tests and shall be performed on each lot. 4.3 Sampling and Testing: Shall be in accordance with ASTM B 249 or ASTM B 249M and the following: 4.3.1 Composition: One sample from each lot. 4.3.2 Tensile Properties: One sample f
25、rom each lot. 4.3.2.1 Tensile tests shall be performed on full-section specimens when practicable. When machined specimens are required, the axis of the specimen shall coincide with the central axis of the piece except that for bars and rods over 1.50 inches (38.1 mm) in nominal diameter or distance
26、 between parallel sides, the axis shall be midway between center and surface of the piece. The longitudinal axis of the tensile specimen shall be parallel to the direction of rolling or drawing. 4.3.3 Embrittlement: One sample from each lot, unless otherwise agreed upon by purchaser and vendor. 4.3.
27、3.1 Specimens for embrittlement test shall be full cross-sections of the product and shall have length of approximately 6 inches (152 mm) or twice the nominal diameter or least distance between parallel sides, whichever is greater. SAE INTERNATIONAL AMS4610N Page 5 of 6 4.4 Reports: The vendor of th
28、e product shall furnish with each shipment a report showing the results of tests for chemical composition, tensile properties, and embrittlement of each lot and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS
29、 4610N, size, and quantity. 4.5 Resampling and Retesting: If any specimen used in the above tests fails to meet 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
30、to meet specified requirements 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 legibly marked with not less than the purchase order number,
31、 AMS 4610N, lot number, and nominal size, or shall be boxed and the box marked with the same information. 5.2 Packaging: 5.2.1 Rods 0.50 inch (12.7 mm) and under in nominal diameter or distance between parallel sides shall be furnished in coils, when so ordered. 5.2.2 The product shall be prepared f
32、or 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. ACKNOWLEDGMENT: A vendor shall mention this specification number and
33、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. 8. NOTES: 8.1 A change bar (|) located in the left margin is for the convenience of th
34、e 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 revision of the specification, including technical revision. Change bars and (R) are not used in or
35、iginal publications, nor in specifications that contain editorial changes only. SAE INTERNATIONAL AMS4610N Page 6 of 6 8.2 Hardness: Should be as shown in Table 4, determined in accordance with ASTM E 18. TABLE 4 - Hardness Nominal Diameter or Distance Between Parallel Sides Inches Nominal Diameter
36、or Distance Between Parallel Sides Millimeters Rounds HRB Hexagons Octagons HRB Squares RectanglesHRB Up to 1.000, incl Up to 25.40, incl 65 to 85 60 to 80 50 to 80 Over 1.000 to 2.000, incl Over 25.40 to 50.80, incl 60 to 80 50 to 70 40 to 70 Over 2.000 Over 50.80 60 to 80 45 to 65 40 to 70 Note: S
37、urface hardness except flats may be used for rounds. Hardness has been used to verify that product is properly processed, but an “out-of-range hardness number” is not always indicative of product with “out-of-specification” tensile strength. Further analysis including material composition verificati
38、on, heat treat process parameter review, and/or tensile property measurement on product with “out-of-range hardness” may be necessary. 8.3 Copper temper designations are defined in ASTM B 601. 8.4 Terms used in AMS are clarified in ARP1917. 8.5 Dimensions and properties in inch/pound units are prima
39、ry; dimensions and properties in SI units are shown as the approximate equivalents of the primary units and are presented only for information. 8.6 Purchase documents should specify not less than the following: AMS 4610N Form and size of product desired Quantity of product desired. PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “D”
