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 theref
2、rom, 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 2013 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS5915AEROSPACE MATERIAL SPECIFICATIONAMS5915Issued 2014-02Nickel Alloy, Corrosion and Heat-
5、Resistant, Bars and Forgings,57Ni - 20Cr - 10Co - 8.5Mo - 2.1Ti - 1.5Al - 0.005B,Vacuum Induction and Consumable Electrode Melted,Solution Heat Treated, Precipitation Heat Treatable(Composition similar to UNS N07208)RATIONALEAMS5915 is a new specification for an age-hardenable nickel-based alloy in
6、the form of bars, forgings and stock for forgings.1. SCOPE1.1 FormThis specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and stock for forging.1.2 This specification applies to bars 6.00 inches (152 mm) and under in nominal diameter or least distance bet
7、ween parallel sides, and to forgings 6.00 inches (152 mm) and under in nominal radial thickness (See 8.5).1.3 ApplicationThese products have been used typically for parts requiring high strength up to 1600 F (871 C) and oxidation resistance up to 1800 F (982 C), but usage is not limited to such appl
8、ications.2. APPLICABLE DOCUMENTSThe 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 ref
9、erenced document has been cancelled 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 724-776-497
10、0 (outside USA), www.sae.org.AMS2261 Tolerances, Nickel, Nickel Alloy, and Cobalt Alloy Bars, Rods, and WireAMS2269 Chemical Check Analysis Limits, Nickel, Nickel Alloys, and Cobalt AlloysSAE INTERNATIONAL AMS5915 Page 2 of 7AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistan
11、t Steels and Alloys, Wrought Products and Forging StockAMS2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steel and Alloy ForgingsAMS2750 PyrometryAMS2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant
12、 Steels and AlloysAMS2808 Identification, Forgings2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM E 8/ E 8M Tensions Testing of Metallic MaterialsASTM E 18 Rockwell Hardness of Metal
13、lic MaterialsASTM E 112 Determining Average Grain SizeASTM E 139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic MaterialsASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys3. TECHNICAL REQUIREMENTS 3.1 Compo
14、sition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 354, by spectrochemical methods or by other analytical methods acceptable to purchaser.TABLE 1 - COMPOSITIONElement min maxCarbonManganeseSiliconPhosphorusSulfurChromiumCo
15、baltMolybdenumTungstenColumbium (Niobium)TitaniumTantalumAluminumBoronIronCopperZirconiumNickel0.04-18.59.08.0-1.90-1.380.003-remainder0.080.30.150.0150.015 20.511.09.00.50.22.30 0.11.650.010 1.50.10.0203.1.1 Check AnalysisComposition variations shall meet the applicable requirements of AMS2269.SAE
16、INTERNATIONAL AMS5915 Page 3 of 73.2 Melting PracticeAlloy shall be multiple melted using vacuum induction melting followed consumable electrode remelting.3.3 ConditionThe product shall be supplied in the following condition:3.3.1 Bars and ForgingsSolution heat treated and descaled. Round bars shall
17、 be ground or turned.3.3.2 Stock for ForgingAs ordered by the forging manufacturer.3.4 Heat Treatment Bars and forgings shall be solution heat treated by heating to a temperature within the range of 2000 to 2125 F 25 (1093 to 1162 C 14), holding at heat for a time commensurate with cross-sectional t
18、hickness, and cooling at a rate equivalent to an air cool or faster. Pyrometry shall be in accordance with AMS2750.3.5 Properties The product shall conform to the following requirements:3.5.1 Bars and Forgings 3.5.1.1 As Solution Heat Treated 3.5.1.1.1 Average Grain SizeShall be ASTM No. 2.5 or fine
19、r, determined in accordance with ASTM E 112.3.5.1.1.2 HardnessShall be not higher than 30 HRC or equivalent (See 8.2), determined in accordance with ASTM E 18. Product shall not be rejected on the basis of hardness if the tensile property requirements of 3.5.1.2.1 are acceptable, determined on speci
20、mens taken from the same sample as that with nonconforming hardness, or from another sample with similar nonconforming hardness.3.5.1.2 After Precipitation Heat TreatmentSpecimens from product shall have the following properties after being precipitation heat treated by heating to 1850 F 15 (1010 C
21、8), holding at heat for 2 hours (15 minutes) and cooling at a rate equivalent to cooling in air or faster to ambient temperature, followed by heating to 1450 F 15 (788 C 8), holding at heat for not less than 8 hours (15 minutes), and cooling at a rate equivalent to cooling in air.3.5.1.2.1 Tensile P
22、ropertiesThe following requirements apply to bars 6.00 inches (152 mm) and under in nominal diameter or least distance between parallel sides, and to forgings 6.00 inches (152 mm) and under in nominal radial thickness. Requirements apply in the longitudinal direction.3.5.1.2.1.1 Mechanical property
23、requirements for product outside of the range covered by Table 2 shall be as agreedupon between purchaser and producer.3.5.1.2.1.2 At Room TemperatureShall be as shown in Table 2, determined in accordance with ASTM E 8/E 8M.SAE INTERNATIONAL AMS5915 Page 4 of 7TABLE 2A - MINIMUM ROOM TEMPERATURE TEN
24、SILE PROPERTIES, INCH/POUND UNITSProperty ValueTensile StrengthYield Strength at 0.2% OffsetElongation in 4DReduction of Area149.0 ksi86.0 ksi20% 16% TABLE 2B - MINIMUM ROOM TEMPERATURE TENSILE PROPERTIES, SI UNITSProperty ValueTensile StrengthYield Strength at 0.2% OffsetElongation in 4DReduction o
25、f Area1027 MPa593 MPa20% 16% 3.5.1.2.2 HardnessShall be not lower than 24 HRC, or equivalent (See 8.2), determined in accordance with ASTM E 18. Product shall not be rejected on the basis of hardness if the tensile property requirements are acceptable, determined on specimens taken from the same sam
26、ple as that with nonconforming hardness, or from another sample with similar nonconforming hardness.3.5.1.2.3 Stress Rupture Properties at 1700 F (927 C)Shall be as follows; testing of smooth specimens shall be in accordance with ASTM E 139:3.5.1.2.3.1 A tensile specimen maintained at 1700 F 3 (927
27、C 2) while a load sufficient to produce an initial axial stress of 13 ksi (89 MPa) or higher is applied continuously, shall not rupture in less than 50 hours. The test shall be continued to rupture without change of load. Elongation after rupture, measured at room temperature, shall not be less than
28、 10% in 4D3.5.2 Forging StockWhen a sample of stock is forged to a test coupon and heat treated as in 3.4 and 3.5.1.2, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.1.2.1, 3.5.1.2.2, and 3.5.1.2.3. If specimens taken from the stock after heat treatment as in 3
29、.4 and 3.5.1.2 conform to the requirements of 3.5.1.2.1, 3.5.1.2.2, and 3.5.1.2.3, the tests shallbe accepted as equivalent to tests of a forged coupon.3.6 QualityThe product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfe
30、ctions detrimental to usage of the product.3.6.1 Grain flow of die forgings, except in areas which contain flash-line end grain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow.3.7 TolerancesBars shall conform to all applicable requirements of AMS2261.4.
31、QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe 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 toensu
32、re that the product conforms to specified requirements.SAE INTERNATIONAL AMS5915 Page 5 of 74.2 Classification of Tests4.2.1 Acceptance TestsThe following requirements are acceptance tests and shall be performed on each heat or lot as applicable:4.2.1.1 Composition (3.1) of each heat.4.2.1.2 Average
33、 grain size (3.5.1.1.1) and hardness (3.5.1.1.2) of each lot of bars and forgings as solution heat treated.4.2.1.3 Room-temperature tensile (3.5.1.2.1), hardness (3.5.1.2.2), and stress-rupture (3.5.1.2.3) properties of each lot of bars or forgings after precipitation heat treatment.4.2.1.4 Toleranc
34、es (3.7) of bars. 4.2.1.5 Ability of forging stock (3.5.2) to develop required properties.4.2.2 Periodic TestsThe following requirements are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser:4.2.2.1 Grain flow of die for
35、gings (3.6.1).4.3 Sampling and Testing Shall be as follows:4.3.1 Bars, and Stock for ForgingIn accordance with AMS2371, with stress rupture specimens oriented as specified for tensile specimens.4.3.2 ForgingsIn accordance with AMS2374, with stress rupture specimens oriented as specified for tensile
36、specimens.4.4 Reports 4.4.1 The vendor of the bars or forgings shall furnish with each shipment a report showing the vendors name and country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations), the results of tests for composition of each heat
37、, grain size and hardness of each lot as solution heat treated, tensile, hardness and stress rupture properties of each lot after precipitation heat treatment, and stating that the product conforms to the other technical requirements. If periodic testing is performed, the results of the periodic tes
38、ting shall be reported. This report shall include the purchase order number, heat and lot numbers, AMS5915, size and quantity. If forgings are supplied, the size and source of stock used to make the forgings shall also be included.4.4.1.1 When product size is outside the range covered by 1.2, the re
39、port shall contain a statement to that effect.4.4.2 The vendor of stock for forging shall furnish with each shipment a report showing the vendors name and country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and the results of tests for
40、chemical composition of each heat and the ability of forging stock to develop required properties. This report shall include the purchase order number, heat number, AMS5915 size, and quantity.SAE INTERNATIONAL AMS5915 Page 6 of 74.5 Resampling and RetestingShall be as follows:4.5.1 Bars and Stock fo
41、r ForgingIn accordance with AMS2371, with stress rupture specimens oriented as specified for tensile specimens.4.5.2 ForgingsIn accordance with AMS2374, with stress rupture specimens oriented as specified for tensile specimens.5. PREPARATION FOR DELIVERY5.1 SizesExcept when exact lengths or multiple
42、s of exact lengths are ordered, straight bars will be acceptable in mill lengths of 6 to 24 feet (1.8 to 7.3 m). Bars weighing over 25 pounds per foot (37 kg/m), short lengths down to 2 feet (610 mm) may be supplied.5.2 IdentificationShall be as follows:5.2.1 BarsIn accordance with AMS2806.5.2.2 For
43、gingsIn accordance with AMS2808.5.2.3 Stock for ForgingAs agreed upon by purchaser and vendor.5.3 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 transportat
44、ion of the product to ensure carrier acceptance and safe delivery.6. ACKNOWLEDGMENT A vendor shall mention this specification number in all quotations and when acknowledging purchase orders.7. REJECTIONS Product not conforming to this specification, or to modifications authorized by purchaser, will
45、be subject to rejection.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 this document. An (R) symbol to the left of the document title indicates a c
46、omplete 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.SAE INTERNATIONAL AMS5915 Page 7 of 78.2 Hardness conversion tables for metals are presented in ASTM E 140.8.3 Terms used i
47、n AMS are clarified in ARP1917.8.4 Dimensions 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 Pu
48、rchase documents should specify not less than the following:AMS5915Product form and size or part number of product desiredProperty and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range shown in 1.2.Quantity of product desired.PREPARED BY AMS COMMITTEE “F“
