1、_SAE Technical Standards Board Rules providHWKDW7KLVUHSRUWLVSXEOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQ LFDODQGHQJLQHHULQJVFLHQFHV7KHXVHRIWKLVUHSRUWL sentirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising thereIURPLVWKHVROHUHVSRQVLELOLW
2、RIWKHXVHUSAE 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 InternationalAll rights reserved. No part of this publication may be reproduced, stored in
3、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 USA)Fax: 724-776-0790Email: Cus
4、tomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS4862FAEROSPACEMATERIAL SPECIFICATIONAMS4862REV. FIssued 1942-03Revised 2001-04Reaffirmed 2016-03Superseding AMS4862EManganese
5、Bronze, Sand and Centrifugal Castings63Cu - 24Zn - 6.2Al - 3.8Mn - 3.0FeHigh Strength, As Cast(Composition similar to UNS C86300)RATIONALEAMS4862F has been reaffirmed to comply with the SAE five-year review policy.1. SCOPE:1.1 Form:This specification covers a manganese bronze alloy in the form of sa
6、nd and centrifugal castings.1.2 Application:These castings have been used typically for parts requiring high strength, toughness, and corrosion resistance, but usage is not limited to such applications. These castings have higher strength and lower ductility than castings of AMS 4860.2. APPLICABLE D
7、OCUMENTS: 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 specified. When the referenced document has b
8、een canceled and no superseding document 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.AMS 2694 Repair Welding of Aerospace CastingsAMS 2804 Identification, CastingsAMS 4860 Mangan
9、ese Bronze, Sand and Centrifugal Castings, 58Cu - 39Zn - 1.2Fe - 1.0Al - 0.80Mn, As Cast2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM B 208 Preparing Tension Test Specimens for Copper-Base Alloys for Sand, Permanent Mold, Centrifugal, and Co
10、ntinuous CastingsASTM E 8 Tension Testing of Metallic MaterialsASTM E 8M Tension Testing of Metallic Materials, MetricASTM E 10 Brinell Hardness of Metallic MaterialsASTM E 478 Chemical Analysis of Copper AlloysASTM E 1417 Liquid Penetrant ExaminationASTM E 1742 Radiographic Examination3. TECHNICAL
11、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.3.1.1 These composition limits do not preclude the presence
12、 of other elements. Limits 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
13、analysis.TABLE 1 - CompositionElement (3.1.1) min maxCopper (3.1.2) 60.0 66.0Zinc 22.0 28.0Aluminum 5.0 7.5Manganese 2.5 5.0Iron 2.0 4.0Nickel plus Cobalt - 1.0Tin - 0.20Lead - 0.20Sum of Named Elements (3.1.3) 99.0 -SAE INTERNATIONAL AMS4862F Page 2 of 8_3.1.3 When all the elements in Table 1 are a
14、nalyzed, the sum shall be 99.0% minimum, but such determination is not required for routine acceptance of each lot.3.2 Condition: As cast - MO1 (As Sand Cast) or MO2 (Centrifugally Cast) (See 8.2).3.3 Casting: Castings shall be produced in lots from metal conforming to 3.1.3.3.1 A lot shall be all c
15、astings produced from one furnace melt or crucible melt. When two or more furnace melts, crucible melts, or combination thereof are used to charge a ladle for pouring, the castings therefrom shall constitute a lot. A lot shall be not more than 1000 pounds (454 kg) of castings.3.4 Test Specimens: Che
16、mical analysis specimens and tensile coupons shall be cast as follows:3.4.1 Chemical Analysis Specimens: Shall be cast from each melt and be of any convenient size, shape, and form.3.4.2 Tensile Coupons: Shall be cast with each lot of castings and in accordance with 3.4.2.1 and 3.4.2.2. Metal for th
17、e coupons shall be part of the melt which is used for the castings. If the metal for castings is given any treatment, such as fluxing or cooling and reheating, the metal for the coupons shall be a portion of the metal so treated and, during such treatment, shall be heated to the same maximum tempera
18、ture and held for approximately the same time as the molten metal for the castings. The temperature of the metal during pouring of the coupons shall be not lower than that during pouring of the castings.3.4.2.1 Sand Cast: Coupons from which specimens are machined shall be standard keel blocks confor
19、ming to ASTM B 208, cast in molds made with the regular foundry mix of sand without using chills or baked sand core molds. Coupons shall be machined to standard tensile specimens conforming to ASTM E 8 or ASTM E 8M with 0.500 inch (12.70 mm) diameter at the reduced parallel gage section.3.4.2.2 Cent
20、rifugally Cast: Coupons from which specimens are machined shall be cylindrical bars of such size as to allow machining of standard tensile specimens conforming to ASTM E 8 or ASTM E 8M with 0.500 inch (12.70 mm) diameter at the reduced parallel gage section.3.5 Properties: Castings and representativ
21、e tensile specimens produced in accordance with 3.4.2 shall conform to the following requirements:SAE INTERNATIONAL AMS4862F Page 3 of 8_3.5.1 Tensile Properties: Separately-cast specimens or specimens as in 4.3.4 cut from any area of a casting shall meet the requirements shown in Table 2, determine
22、d in accordance with ASTM E 8 or ASTM E 8M.3.5.1.1 Tensile properties of separately-cast specimens shall be used for acceptance of castings except when purchaser specifies that tensile properties of specimens cut from any area of a casting apply.3.5.2 Hardness: Castings shall have hardness of 217 to
23、 269 HB/10/3000, or equivalent, determined in accordance with ASTM E 10.3.6 Quality: Castings, 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 castings.3.6.1 Castings shall have smooth surf
24、aces and shall be sufficiently cleaned to permit nondestructive inspection.3.6.2 Castings shall be produced under radiographic control. This control shall consist of radiographic examination of castings in accordance with ASTM E 1742 until proper foundry technique, which will produce castings free f
25、rom harmful internal imperfections, is established for each part number and of production castings as necessary to ensure maintenance of satisfactory quality.3.6.3 When specified, castings shall be subjected to fluorescent penetrant inspection in accordance with ASTM E 1417. 3.6.4 Radiographic, fluo
26、rescent penetrant, and other quality standards may be agreed upon by purchaser and vendor.3.6.5 Castings shall not be reworked by peening, plugging, welding, or other methods without written permission from purchaser.3.6.5.1 When permitted in writing by purchaser, defects in castings may be removed
27、and the castings repaired by welding in accordance with AMS 2694.TABLE 2 - Minimum Tensile PropertiesProperty ValueTensile Strength 110 ksi (758 MPa)Yield Strength at 0.2% Offset 60.0 ksi (414 MPa)Elongation in 4D 12% SAE INTERNATIONAL AMS4862F Page 4 of 8_4. QUALITY ASSURANCE PROVISIONS: 4.1 Respon
28、sibility for Inspection: The vendor of castings 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 castings conform to the sp
29、ecified requirements.4.2 Classification of Tests: 4.2.1 Acceptance Tests: Except as specified in 4.2.1.1, composition (3.1), tensile properties (3.5.1), hardness (3.5.2), and quality (3.6) are acceptance tests and shall be performed on each melt or lot as applicable.4.2.1.1 Tensile properties of spe
30、cimens cut from castings shall be determined only when specified by purchaser or when separately-cast coupons are not available. Tensile properties of separately-cast coupons need not be determined when tensile properties of specimens cut from castings are determined.4.2.2 Preproduction Tests: All t
31、echnical requirements are preproduction tests and shall be performed prior to or on the first-article shipment of a casting to a purchaser, when a change in material and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required.4.3 Sampling and Testi
32、ng: Shall be in accordance with the following:4.3.1 One chemical analysis specimen in accordance with 3.4.1 from each melt or a casting from each lot.4.3.2 Two separately-cast tensile specimens in accordance with 3.4.2 representing each lot except when properties of specimens cut from castings are r
33、equired.4.3.3 Sufficient castings of each part number in accordance with 4.4.1 as required to satisfy dimensional, mechanical property, and quality evaluations. 4.3.4 One or more castings from each lot when properties of specimens machined from castings are required. Specimens shall conform to ASTM
34、E 8 or ASTM E 8M and shall be either 0.500 inch (12.70 mm) in diameter at the reduced parallel gage section, subsize specimens proportional to the standard, or standard sheet-type specimens. For determining conformance to the requirements of 3.5.1, if specimen locations are not shown on the drawing,
35、 not less than two tensile specimens, one from the thickest section and one from the thinnest section, shall be cut from a casting or castings from each lot.SAE INTERNATIONAL AMS4862F Page 5 of 8_4.3.5 One or more castings from each lot for hardness evaluation.4.4 Approval: 4.4.1 Sample castings fro
36、m new or reworked master patterns or molds and the casting procedure shall be approved by purchaser before castings for production use are supplied, unless such approval be waived by purchaser.4.4.2 Vendor shall establish, for production of sample castings of each part number, parameters for the pro
37、cess control factors which will produce acceptable castings; these shall constitute the approved casting procedure and shall be used for producing production castings. If necessary to make any change in parameters for the process control factors, vendor shall submit for reapproval a statement of the
38、 proposed changes in processing and, when requested, test specimens, sample castings, or both. Production castings incorporating the revised operations shall not be shipped prior to receipt of reapproval.4.4.2.1 Control factors for producing castings include, but are not limited to, the following:Ty
39、pe of furnaceFurnace atmosphereFluxing or deoxidation procedureGating and risering practicesMetal pouring temperature; variation of 50 F (28 C) is permissibleMold set-up, parting agent, and rotational speed for centrifugal castingsSolidification and cooling proceduresCleaning operationsMethods of in
40、spection.4.4.2.1.1 Any of the above process control factors for which parameters are considered proprietary by the vendor may be assigned a code designation. Each variation in such parameters shall be assigned a modified code designation.4.5 Reports: The vendor of castings shall furnish with each sh
41、ipment a report showing the results of tests for chemical composition of at least one casting or of separately-cast specimens from each melt, the results of tests for tensile properties of separately-cast coupons representing each lot or of specimens cut from castings from each lot, and stating that
42、 the castings conform to the other technical requirements. This report shall include the purchase order number, lot number, AMS 4862F, part number, and quantity.4.6 Resampling and Retesting: If any specimen used in the above tests fails to meet the specified requirements, disposition of the casting
43、may be based on the results of testing two additional specimens. Failure on any retest to meet the specified requirements shall be cause for rejection of the castings represented. Results of all tests shall be reported.SAE INTERNATIONAL AMS4862F Page 6 of 8_5. PREPARATION FOR DELIVERY: 5.1 Identific
44、ation: Shall be in accordance with AMS 2804.5.2 Packaging: Castings 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 castings to ensure carrier acceptance and
45、 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: Castings not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection
46、.8. NOTES: 8.1 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 made to the previous issue of this specification. An (R) symbol to the left of the document title indicates a complete revisio
47、n of the specification, including technical revisions. Change bars and (R) are not used in original publications, nor in specifications that contain editorial changes only.8.2 Copper temper designations are defined in ASTM B 601.8.2.1 Terms used in AMS are clarified in ARP1917.8.3 Dimensions and properties in inch/pound units are
