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/AMS4146G AEROSPACE MATERIAL SPECIFICATION AMS4146 REV. G Issued 1960-06 Noncurren
5、t 2005-02 Revised 2008-05 Reaffirmed 2014-05 Superseding AMS4146F Aluminum Alloy Forgings and Rolled or Forged Rings 1.0Mg - 0.60Si - 0.28Cu - 0.20Cr (6061 - T4) Solution Heat Treated and Naturally Aged (Composition similar to UNS A96061) RATIONALE This document has been reaffirmed to comply with th
6、e SAE five-year review policy. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of die forgings, hand forgings, rolled or forged rings, and forging stock. 1.2 Application These products have been used typically for parts which will be welded or brazed to assemblies and then
7、given further heat treatment to develop the full strength of which the alloy is capable, but usage is not limited to such applications. 1.2.1 Corrosion resistance of this alloy is generally superior to that of aluminum alloys containing copper as a principle alloying element. 2. APPLICABLE DOCUMENTS
8、 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 been cance
9、lled and no superseding document has been specified, the last published issue of that document shall apply. SAE INTERNATIONAL AMS4146G Page 2 of 7 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 72
10、4-776-4970 (outside USA), www.sae.org. AMS2201 Tolerances, Aluminum and Aluminum Alloy Bar, Rod, Wire, and Forging Stock, Rolled or Cold Finished AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash
11、 Welded Rings AMS2645 Fluorescent Penetrant Inspection AMS2770 Heat Treatment of Wrought Aluminum Alloy Parts AMS2808 Identification, Forgings AMS-H-6088 Heat Treatment of Aluminum Alloys 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken
12、, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B 594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace Applications ASTM B 660 Packing/Packaging of Aluminum and Magnesium Products 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight as shown in Ta
13、ble 1, determined in accordance with AMS2355. TABLE 1 - COMPOSITION Element min max Magnesium Silicon Copper Chromium Iron Zinc Manganese Titanium Other Impurities, each Other Impurities, total 0.8 0.40 0.15 0.04 - - - - - - -1.2 0.8 0.40 0.35 0.7 0.25 0.15 0.15 0.05 0.15 Aluminum Remainder 3.2 Cond
14、ition The product shall be supplied in the following condition: 3.2.1 Die Forgings, Hand Forgings, and Rolled Rings Solution heat treated in accordance with AMS-H-6088 and naturally aged. 3.2.2 Forging Stock As ordered by the forging manufacturer. 3.3 Properties The product shall conform to the foll
15、owing requirements, determined in accordance with AMS2355. SAE INTERNATIONAL AMS4146G Page 3 of 7 3.3.1 Die Forgings, Hand Forgings, and Rolled Rings 3.3.1.1 As Solution Heat Treated and Naturally Aged 3.3.1.1.1 Hardness Shall be 50 - 80 HB/10/500 or 55 - 85 HB/10/1000 but product shall not be rejec
16、ted on the basis of hardness if tensile properties after precipitation heat treatment meet all requirements of 3.3.1.2.1. 3.3.1.2 After Precipitation Heat Treatment Shall be as follows after being precipitation heat treated to T62 temper in accordance with AMS2770: 3.3.1.2.1 Tensile Properties Shall
17、 be as follows: 3.3.1.2.1.1 Test Specimens Specimens machined from separately forged coupons or from stock representing the forgings and, in either case, heat treated with the forgings, shall have the properties in Table 2: TABLE 2 - TENSILE PROPERTIES Property Minimum Tensile Strength Yield Strengt
18、h at 0.2% Offset Elongation in 4D 38.0 ksi (262 MPa) 35.0 ksi (241 MPa) 10% 3.3.1.2.1.2 Die Forgings 3.3.1.2.1.2.1 With Grain Fl ow Specimens, machined from forgings 4 inches (102 mm) and under in nominal thickness with axis of specimen in area of gage length varying not more than 15 degrees from pa
19、rallel to forging flow lines, shall have properties specified in Table 2 except that elongation may be as low as 7%. 3.3.1.2.1.2.2 Across Grain Flow Specimens, machined from forgings 4 inches (102 mm) and under in nominal thickness with axis of specimen area of gage length varying not more than 15 d
20、egrees from perpendicular to forging flow lines, shall have properties specified in Table 2 except that elongation may be as low as 5%. SAE INTERNATIONAL AMS4146G Page 4 of 7 3.3.1.2.1.3 Hand Forgings Specimens, machined from forgings 8 inches (203 mm) and under in nominal thickness shall have prope
21、rties specified in Table 3; tests need not be made in the longitudinal direction unless specifically required by purchaser. TABLE 3A - TENSILE PROPERTIES Nominal Thickness Inches Specimen Orientation Tensile Strengthksi, min Yield Strength at 0.2% Offset ksi, min Elongation in 4D %, min Up to 4, inc
22、l Over 4 to 8, incl Longitudinal Long Trans. Short Trans. Longitudinal Long Trans. Short Trans. 38.0 38.0 37.0 37.0 37.0 35.0 35.0 35.0 33.0 34.0 34.0 32.0 10 8 5 8 6 4 TABLE 3B - TENSILE PROPERTIES (SI) Nominal Thickness Millimeters Specimen Orientation Tensile Strength MPa, min Yield Strength at 0
23、.2% Offset MPa, min Elongation in 5D %, min Up to 102, incl Over 102 to 203, incl Longitudinal Long Trans. Short Trans. Longitudinal Long Trans. Short Trans. 262 262 255 255 255 241 241 241 228 234 234 221 9 7 4 7 5 3 3.3.1.2.1.4 Rolled Rings 3.3.1.2.1.4.1 Tangential Specimens, machined from rings 2
24、.50 inches (63.5 mm) and under in nominal thickness with axis of specimen tangential to ring OD (axis parallel to direction of rolling), shall have properties specified in Table 2. 3.3.1.2.1.4.2 Axial Specimens, machined from rings 2.50 inches (63.5 mm) and over in nominal thickness with axis of spe
25、cimen approximately parallel to axis of the ring (axis transverse to direction of rolling), shall have properties as specified in Table 2 except that elongation may be as low as 8%. 3.3.1.2.1.5 Other Forgings Tensile property requirements for die forgings, hand forgings, and rolled rings having nomi
26、nal thickness greater than specified above shall be as agreed upon by purchaser and vendor. 3.3.1.2.2 Hardness Should be not lower than 80 HB/10/500 or 85 HB/10/1000 but the product shall not be rejected on the basis of hardness if the applicable tensile property requirements are met. 3.3.1.3 Grain
27、flow of die forgings, except in area which contains flash-line end grain, shall follow the general contour of the forgings- showing no evidence of reentrant grain flow. SAE INTERNATIONAL AMS4146G Page 5 of 7 3.3.2 Forging Stock When a sample of stock is forged to a test coupon having a degree of mec
28、hanical working not greater than the forging and heat treated in the same manner as forgings, specimens taken from the heat treated coupon shall conform to the requirements of Table 2 and 3.3.1.2.2. If specimens taken from the stock after heat treatment in the same manner as forgings conform to the
29、requirements of Table 2 and 3.3.1.2.2, the tests shall be accepted as equivalent to tests of a forged coupon. 3.4 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 produc
30、t. 3.4.1 Each die forging and, when specified, each rolled or forged ring shall be etched to produce a surface suitable for visual inspection. Surfaces shall be evaluated for defects such as seams, laps, bursts, and quench cracks. Surface imperfections which can be removed so that they do not reappe
31、ar on re-etching and the required section thickness can be maintained are acceptable. 3.4.1.1 When approved by purchaser, a sampling plan may be used in lieu of etching each forging. 3.4.2 When specified, die forgings, hand forgings, and rolled forged rings shall be subjected to fluorescent penetran
32、t inspection in accordance with AMS2645, to ultrasonic inspection in accordance with ASTM B 594, or to both. Standards for acceptance shall be as established by purchaser. 3.5 Tolerances Forging stock shall conform to all applicable requirements of AMS2201. 4. QUALITY ASSURANCE PROVISIONS 4.1 Respon
33、sibility 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 the product conforms to spec
34、ified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Tests of the product for composition (3.1); of forgings for requirements for hardness as solution heat treated (3.3.1.1.1) and tensile properties after precipitation heat treatment (3.3.1.2.1); and of forging stock for tolerances
35、 (3.5) are acceptance tests and shall be performed on each lot. 4.2.2 Periodic Tests Tests of die forgings for grain flow (3.3.1.3) and of forging stock to determine ability to develop required properties (3.3.2) are periodic tests and shall be performed at a frequency selected by the vendor unless
36、frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be in accordance with AMS2355. A lot shall be all forgings or rolled rings of the same part number, size, or nominal cross-section and configuration heat treated in the same batch furnace load or in a continuous furnace c
37、onsecutively during an eight-hour period. The maximum lot size for forgings and rolled rings heat treated in a continuous furnace shall be 6000 pounds (2722 kg). SAE INTERNATIONAL AMS4146G Page 6 of 7 4.3.1 Rolled Rings Not less than two tensile specimens shall be taken from a ring or ring prolongat
38、ion representing the lot. One specimen shall be taken tangential to ring OD and the other parallel to axis of the ring. 4.4 Reports 4.4.1 The vendor of forgings or rings shall furnish with each shipment a report stating that the chemical composition conforms to the requirements of this specification
39、 and showing the results of tests on each lot to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, lot number, AMS4146F, size or part number, and quantity. 4.4.2 The vendor of forging stock shall furnish with each shipment a report
40、stating that the chemical composition of the stock conforms to specified requirements. This report shall include the purchase order number, lot number, AMS4146F, size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall
41、 be as follows: 5.1.1 Die Forgings and Rolled Rings In accordance with AMS2808. 5.1.2 Hand Forgings Marked with the alloy number and temper, the characters recurring at intervals not greater than 6 inches (152 mm) and applied in the longitudinal grain direction. 5.1.3 Forging Stock As agreed upon by
42、 purchaser and vendor. 5.2 Packaging 5.2.1 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
43、. 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 to rejection. SAE INTERNATIO
44、NAL AMS4146G Page 7 of 7 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 document. An (R) symbol to the left of the document title indicates a
45、complete revision 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 Terms used in AMS are clarified in ARP1917. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temp
46、eratures 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. 8.4 Purchase documents should specify not less than the following: AMS4146F Form and size or part number of p
47、roduct desired Quantity of product desired Acceptance standards for fluorescent penetrant or ultrasonic inspection, or both, when specified (See 3.4.2). 8.5 Similar Specifications 8.5.1 Federal QQ-A-36 7 is listed for information only and shall not be construed as an acceptable alternate unless all requirements of this AMS are met. PREPARED BY AMS COMMITTEE “D“
