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 2013 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/AMS4215H AEROSPACE MATERIAL SPECIFICATION AMS4215 REV. H Issued 1961-01 Revised 2008-03 Reaff
5、irmed 2013-05 Superseding AMS4215G Aluminum Alloy, Castings 5.0Si - 1.2Cu - 0.50Mg (C355.0-T6) Solution and Precipitation Heat Treated (Composition similar to UNS A33550) RATIONALE AMS4215H has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form This specification cover
6、s an aluminum alloy in the form of sand, permanent mold, composite mold, and investment castings. 1.2 Application These castings have been used typically for components requiring high strength at room and elevated temperatures, but usage is not limited to such application. 2. APPLICABLE DOCUMENTS Th
7、e 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 been cancelle
8、d and no superseding document has 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. AMS
9、2175 Castings, Classification and Inspection of AMS2694 In-Process Welding of Castings AMS2771 Heat Treatment of Aluminum Alloy Castings AMS2804 Identification, Castings SAE AMS4215H Page 2 of 7 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Consh
10、ohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 557 Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products ASTM B 557M Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric) ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products AST
11、M E 29 Using Significant Digits in Test Data to Determine Conformance with Specifications ASTM E 34 Chemical Analysis of Aluminum and Aluminum-Base Alloys ASTM E 227 Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique ASTM E 607 Atomic Emission Spe
12、ctrometric Analysis of Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere ASTM E 716 Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis ASTM E 1251 Analysis of Aluminum and Aluminum Alloys by Atomic Emission Spectrometry ASTM E 1417 Liquid Penetrant Testing ASTM E 1
13、742 Radiographic Examination 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 34, by spectrochemical methods in accordance with ASTM E 227, ASTM E 607, or ASTM E 1251, or by other analy
14、tical methods acceptable to purchaser (See 3.4.1). TABLE 1 - COMPOSITION Element min max Silicon 4.5 5.5 Iron - 0.20 Copper 1.0 1.5 Manganese - 0.10 Magnesium 0.40 0.6 Zinc - 0.10 Titanium - 0.20 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.1.1 Test results may be ro
15、unded in accordance with the “rounding off“ method of ASTM E 29. 3.2 Condition Solution and precipitation heat treated (See 3.5). 3.3 Casting Castings shall be produced from metal conforming to 3.1, determined by analysis of a specimen (3.4.1) cast after the last melt addition. The type of mold for
16、castings is not restricted. 3.4 Cast Test Specimens Chemical analysis specimens and tensile specimens, when required, shall be cast after the last melt addition and shall be tested to qualify the melt lot as in 3.1. SAE AMS4215H Page 3 of 7 3.4.1 Chemical Analysis Specimens Shall be cast from each m
17、elt. Spectrochemical sample shall be prepared in accordance with ASTM E 716. 3.4.2 Tensile Specimens When purchaser specifies use of separately-cast specimens, they shall be cast with each lot of castings, shall be of standard proportions conforming to ASTM B 557 or ASTM B 557M, and shall be cast to
18、 size in molds representative of the practice used for castings. Metal for the specimens shall be part of the melt which is used for the castings. Chills are not permitted in the specimen cavity except on the end face of the specimen when approved in accordance with 4.4.2. A tensile specimen shall b
19、e processed with each heat treat lot and tested for conformance with 3.6.1.3. 3.5 Heat Treatment Castings and representative tensile specimens (3.4.2) shall be solution and precipitation heat treated in accordance with AMS2771 except as follows: 3.5.1 Solution Heat Treatment Quenching medium shall b
20、e an aqueous polymer solution (15 to 30% polymer) or hot water at not lower than 150 F (66 C). 3.5.2 Precipitation Heat Treatment May begin immediately after quenching; product shall be at temperature for not less than 3 hours. 3.6 Properties Castings and integrally-cast coupons or separately-cast t
21、ensile specimens when required, shall conform to the following requirements: 3.6.1 Tensile Properties Shall be as follows, determined in accordance with ASTM B 557 or ASTM B 557M; conformance to the requirements of 3.6.1.1 shall be used as basis for acceptance of castings except when purchaser speci
22、fies that the requirements of 3.6.1.2 or 3.6.1.3 apply: 3.6.1.1 Specimens Cut From Any Area of a Casting Specimens as in 4.3.3 shall have the properties shown in Table 2. TABLE 2 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength 35.0 ksi (241 MPa) Yield Strength at 0.2% Offset 28.0 ksi (1
23、93 MPa) Elongation in 4D 2% SAE AMS4215H Page 4 of 7 3.6.1.2 Specimens Cut From Integrally-Cast Coupons When specified by purchaser, specimens from integrally-cast coupons as in 4.3.3.1 shall have the properties shown in Table 3: TABLE 3 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength 3
24、5.0 ksi (241 MPa) Yield Strength at 0.2% Offset 28.0 ksi (193 MPa) Elongation in 4D 2% 3.6.1.3 Separately-Cast Specimens When specified by purchaser, specimens as in 4.3.4 shall have the properties shown in Table 4: TABLE 4 - MINIMUM TENSILE PROPERTIES Property Value Tensile Strength 37.0 ksi (255 M
25、Pa) Yield Strength at 0.2% Offset 30.0 ksi (207 MPa) Elongation in 4D 1% 3.7 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. 3.7.1 When acceptance standards are
26、not specified, Grade C of AMS2175 shall apply. 3.7.2 Methods of inspection and frequency of inspection shall be as agreed upon by purchaser and vendor. A “Casting Class” of AMS2175 may be selected to specify the method and frequency of inspection. 3.7.3 Castings shall be produced under radiographic
27、control. This control shall consist of 100% radiographic inspection of castings until process control factors (4.4.2) have been established to ensure production of acceptable castings. Unless otherwise specified by purchaser, continued radiographic inspection of production castings shall be performe
28、d at a frequency determined by the vendor to ensure continued maintenance of internal quality. 3.7.3.1 Radiographic inspection shall be conducted in accordance with ASTM E 1742, unless otherwise specified by purchaser. 3.7.4 When specified by purchaser, castings shall be fluorescent penetrant inspec
29、ted using a method specified by purchaser, or, if not specified, a method in accordance with ASTM E 1417. 3.7.5 Castings shall not be peened, plugged, impregnated, or welded, unless authorized by purchaser. 3.7.5.1 When authorized by purchaser, welding in accordance with AMS2694 or other welding pro
30、gram approved by purchaser may be used. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility 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 co
31、nfirmatory testing deemed necessary to ensure that the castings conform to specified requirements. SAE AMS4215H Page 5 of 7 4.2 Classification of Tests 4.2.1 Acceptance Tests Except as specified in 4.2.1.1, composition (3.1) and tensile properties of specimens cut from castings (3.6.1.1) or, when sp
32、ecified, from integrally-cast coupons (3.6.1.2) or tensile properties of separately-cast specimens (3.6.1.3), are acceptance tests and shall be performed to represent each melt or heat treat lot as applicable. 4.2.1.1 Tensile properties of separately-cast specimens shall be determined only when spec
33、ified by purchaser or when specimens cut from castings or from integrally-cast coupons cannot be obtained. Tensile properties of separately-cast specimens need not be determined when tensile properties of specimens cut from castings or from integrally-cast coupons are determined. 4.2.2 Periodic Test
34、s Radiographic inspection (3.7.3) following the establishment of process control (4.4.2) is a periodic test and shall be performed at a frequency determined by the vendor to ensure continued maintenance of internal quality unless frequency of testing is specified by purchaser. 4.2.3 Preproduction Te
35、sts All technical 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 Samplin
36、g and Testing Shall be in accordance with the following: 4.3.1 One chemical analysis specimen from each melt for conformance to 3.1. 4.3.2 Two preproduction castings in accordance with 4.4.1 of each part number. 4.3.3 Not less than two tensile specimens machined from a casting or castings from each
37、heat treat lot for conformance to 3.6.1.1 except when purchaser specifies use of integrally-cast coupons as in 4.3.3.1 or use of separately-cast specimens as in 4.3.4. Specimens shall conform to ASTM B 557 or ASTM B 557M and shall be either 0.500 inch (12.70 mm) diameter at the reduced parallel gage
38、 section, subsize specimens proportional to the standard, or standard sheet-type specimens. If specimen locations are not shown on the drawing, not less than two specimens, one from the thickest section and one from the thinnest section, shall be cut from a casting or castings from each lot. 4.3.3.1
39、 When permitted by purchaser, test bars integrally-cast with the castings may be tested for conformance to 3.6.1.2 in lieu of testing specimens cut from castings. Size, number, and location of integrally-cast coupons shall be as specified on the casting drawing or as agreed upon by purchaser and ven
40、dor. 4.3.4 When specified by purchaser, three separately-cast tensile specimens in accordance with 3.4.2 representing each lot of castings; one specimen shall be tensile tested for conformance to 3.6.1.3 and the other two retained for retests if necessary. 4.4 Approval 4.4.1 Sample castings from new
41、 or reworked tooling (i.e., patterns, molds, dies, etc.) and the casting procedure shall be approved by purchaser before castings for production use are supplied, unless such approval be waived by purchaser. SAE AMS4215H Page 6 of 7 4.4.2 Vendor shall establish, for production of sample castings of
42、each part number, parameters for the process control factors which will produce acceptable castings; these shall constitute the approved casting procedure and shall be used for producing production castings. Vendor shall also establish a procedure for production of separately-cast tensile specimens.
43、 Method for production of separately cast tensile specimens shall be consistent for all material cast to this specification. Control factors for producing separately-cast tensile specimens need not be the same as those used for production of castings. If necessary to make any change in parameters fo
44、r the process control factors, vendor shall submit for reapproval a statement of the proposed changes in processing and, when requested, sample castings, test specimens, or both. Production castings incorporating the revised operations shall not be shipped prior to receipt of reapproval. 4.4.2.1 Con
45、trol factors for producing castings include, but are not limited to, the following: Type of furnace Furnace atmosphere Alloy additions, fluxing, deoxidation, and gas removal procedure Gating, risering, and chilling practices Mold composition and molding practice Core composition and fabrication meth
46、od, if applicable Metal pouring temperature; variation of 50 F (28 C) from the established limit is permissible Solidification and cooling procedures Solution and precipitation heat treatment cycles Cleaning operations Straightening procedure, if applicable Methods of inspection Radiographic inspect
47、ion sampling plan, if used. 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 f
48、urnish with each shipment a report showing the results of tests for composition of at least one casting or of separately-cast specimens from each melt and the results of tests for tensile properties of specimens cut from castings from each lot or, when specified, from integrally-cast coupons or of s
49、eparately-cast specimens representing each lot. This report shall include the purchase order number, lot number, AMS4215H, 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 castings may be based on the results of testing two additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet t
