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 2017 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:/standards.sae.org/AMS5951A AEROSPACE MATERIAL SPECIFICATION AMS5951 REV. A Issued 2010-12 Revised 2017-07 Superse
5、ding AMS5951 Nickel Alloy, Corrosion and Heat-Resistant, Sheet, Strip, and Plate 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) RATIONALE AMS5951A revises Pro
6、perties (3.5.3), Reports (4.4), and Identification (5.1.1), and is a Five-Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant nickel based alloy in the form of sheet, strip, and plate 0.020 to 1.0 inch (0.508 to 25.4 mm) in thickne
7、ss (see 8.5). 1.2 Application These 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 applications. 2. APPLICABLE DOCUMENTS The following publications form a part of this document t
8、o the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this documen
9、t takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 7
10、24-776-4970 (outside USA), www.sae.org. AMS2262 Tolerances Nickel, Nickel Alloy, and Cobalt Alloy Sheet, Strip, and Plate AMS2269 Chemical Check Analysis Limits Nickel, Nickel Alloys, and Cobalt Alloys AMS2371 Quality Assurance Sampling and Testing Corrosion and Heat-Resistant Steels and Alloys Wrou
11、ght Products and Forging Stock SAE INTERNATIONAL AMS5951A Page 2 of 8 AMS2750 Pyrometry AMS2807 Identification Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys Sheet, Strip, Plate, and Aircraft Tubing ARP1917 Clarification of Terms Used in Aerospace Metals Specifications A
12、S4194 Sheet and Strip Surface Finish Nomenclature 2.2 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 B906 Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip ASTM E8/E8M Tensi
13、on Testing of Metallic Materials ASTM E18 Rockwell Hardness of Metallic Materials ASTM E21 Elevated Temperature Tension Tests of Metallic Materials ASTM E112 Determining Average Grain Size ASTM E139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials ASTM E140 Hardness Co
14、nversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness ASTM E290 Bend Testing of Material for Ductility ASTM E354 Chemical Analysis of High Temperature, Electrical, Magnetic, a
15、nd Other Similar Iron, Nickel, and Cobalt Alloys ASTM E384 Knoop and Vickers Hardness of Materials 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 E354, by spectrochemical methods, or b
16、y other analytical methods acceptable to purchaser. SAE INTERNATIONAL AMS5951A Page 3 of 8 Table 1 - Composition Element Min Max Carbon Manganese Silicon Phosphorus Sulfur Chromium Cobalt Molybdenum Tungsten Columbium (Niobium) Titanium Tantalum Aluminum Boron Iron Copper Zirconium Nickel 0.04 - - -
17、 - 18.5 9.0 8.0 - - 1.90 - 1.38 0.003 - - - remainder 0.08 0.3 0.15 0.015 0.015 20.5 11.0 9.0 0.5 0.2 2.30 0.1 1.65 0.010 1.5 0.1 0.020 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2269. 3.2 Melting Practice Alloy shall be multiple melted using vacuum indu
18、ction followed by consumable electrode practice in the remelt cycle. 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Sheet and Strip Hot or cold rolled, solution heat treated, and, unless solution heat treatment is performed in an atmosphere yielding a bright finish, de
19、scaled having a surface appearance in accordance with ASTM B906 and AS4194 comparable to 3.3.1.1 or 3.3.1.2 as applicable. 3.3.1.1 Sheet No. 2D finish. 3.3.1.2 Strip No. 1 strip finish. 3.3.2 Plate Hot or cold rolled, solution heat treated, and, unless solution heat treatment is performed in an atmo
20、sphere yielding a bright finish, descaled. SAE INTERNATIONAL AMS5951A Page 4 of 8 3.4 Solution Heat Treatment 3.4.1 Product 0.040 inch (1.106 mm) and above in thickness shall be solution heat treated by heating in a suitable atmosphere within the range of 2050 to 2150 F (1121 to 1177 C), holding at
21、the selected temperature 25 F (15 C) for a time commensurate with the thickness, and cooling at a rate equivalent to air cool or faster. Pyrometry shall be in accordance with AMS2750. 3.4.2 For product under 0.040 inch (1.016 mm) in thickness, process parameters (e.g., furnace temperature set points
22、, heat input, travel rate, etc.) shall be established by the material producer and validated by testing of product to specified requirements. It is recommended that the product be solution heat treated by heating in a suitable protective atmosphere, preferably in hydrogen or argon (see 3.4.2.1) or i
23、n vacuum (10-4 torr or less), within the range of 2050 to 2150 F (1121 to 1177 C), holding at the selected temperature 25 F (15 C) for a time commensurate with the thickness, and cooling at a rate equivalent to air cool or faster. Pyrometry shall be in accordance with AMS2750. 3.4.2.1 For product 0.
24、010 inch (0.25 mm) and under in nominal thickness, a dew point of -60 F (-50 C) or lower is preferable when using hydrogen or argon atmosphere. 3.5 Properties The product shall conform to the following requirements: 3.5.1 As Solution Heat Treated 3.5.1.1 Tensile Properties Shall be as shown in Table
25、 2, determined in accordance with ASTM E8/E8M. Table 2 Table 2A - Tensile properties, inch/pound units Nominal Thickness Inches Tensile Strength ksi, Max Yield Strength at 0.2% Offset ksi, Max Elongation in 2 Inches or 4D %, Min 0.020 to 0.1874, incl Over 0.1874 to 1.0 150 150 75 100 30 30 Table 2B
26、- Tensile properties, SI units Nominal Thickness Millimeters Tensile Strength MPa, Max Yield Strength at 0.2% Offset MPa, Max Elongation in 50.8 mm or 4D %, Min 0.508 to 4.760, incl Over 4.760 to 25.4 1034 1034 517 689 30 30 3.5.1.2 Hardness Shall be not higher than 30 HRC, or equivalent (see 8.2),
27、determined in accordance with ASTM E18; for thin gages, where superficial hardness testing is impractical, microhardness testing in accordance with ASTM E384 may be used. Product shall not be rejected on the basis of hardness if the tensile property requirements of 3.5.1.1 are acceptable, determined
28、 on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness. SAE INTERNATIONAL AMS5951A Page 5 of 8 3.5.1.3 Bending Product 0.1874 inch (4.760 mm) and under in thickness shall be tested using a sample nominally 0.75 inch (19
29、.0 mm) in width, with the axis of bending parallel to the direction of rolling, and shall withstand, without cracking, bending in accordance with ASTM E290 through an angle of 180 around a diameter equal to the bend factor shown in Table 3 times the nominal thickness of the product. In case of dispu
30、te, the guided bend test of ASTM E290 shall apply. Table 3 - Bending Parameters Nominal Thickness Inch Nominal Thickness Millimeters Bend Factor 0.020 to 0.050, incl Over 0.050 to 0.1874, incl 0.508 to 3.18, incl Over 3.18 to 4.760, incl 1.5 2 3.5.1.4 Average Grain Size Shall be as shown in Table 4,
31、 determined in accordance with ASTM E112. Table 4 - Average Grain Size Nominal Thickness Inch Nominal Thickness Millimeters ASTM Grain Size Number 0.020 to 0.1874, incl Over 0.1874 to 1.0, incl 0.508 to 4.760, incl Over 4.760 to 25.4 3 or finer 2.5 or finer 3.5.2 After Precipitation Heat Treatment T
32、he product shall have the following properties after being precipitation heat treated by heating to 1850 F 15 F (1010 C 8 C), holding at heat for 2 hours and cooling at a rate equivalent to cooling in air, followed by heating to 1450 F 15 F (788 C 8 C), holding at heat for not less than 8 hours, and
33、 cooling at a rate equivalent to cooling in air. 3.5.2.1 Tensile Properties 3.5.2.1.1 At Room Temperature Shall be as shown in Table 5, determined in accordance with ASTM E8/E8M. Table 5 Table 5A - Minimum room temperature tensile properties, inch/pound units Nominal Thickness Inches Tensile Strengt
34、h ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D % 0.020 to 1.0, incl 150 85 20 Table 5B - Minimum room temperature tensile properties, SI units Nominal Thickness Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D %, Min 0.508 to 25.4,
35、incl 1034 586 20 SAE INTERNATIONAL AMS5951A Page 6 of 8 3.5.2.2 Hardness Shall be not lower than 24 HRC, or equivalent (see 8.2), determined in accordance with ASTM E18; for thin gages where superficial hardness testing is impractical, microhardness testing in accordance with ASTM E384 may be used.
36、Product shall not be rejected on the basis of hardness if the tensile property requirements of 3.5.2.1.1 are acceptable, determined on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness. 3.5.2.3 Stress-Rupture Propertie
37、s at 1700 F (927 C) A tensile specimen, maintained at 1700 F 3 F (927 C 2 C) while a load sufficient to produce an initial axial stress of 13 ksi (89 MPa) is applied continuously, shall be in accordance with Table 6. Tests shall be conducted in accordance with ASTM E139. Table 6 Table 6A - Stress ru
38、pture parameters and limits, inch/pound units Nominal Thickness Inches Hours to Rupture, Min Elongation in 2 Inches or 4D %, Min 0.020 to 0.1874, incl Over 0.1874 to 1.0 25 50 5 10 Table 6B - Stress rupture parameters and limits, SI units Nominal Thickness Millimeters Hours to Rupture, Min Elongatio
39、n in 50.8 mm or 4D %, Min 0.508 to 4.760, incl Over 4.760 to 25.4 25 50 5 10 3.5.2.3.1 The test of 3.5.2.3 may be conducted using a load higher than required to produce the initial axial stress of 13 ksi (89 MPa) but the load shall not be changed while the test is in progress. Time to rupture and el
40、ongation requirements shall be as specified in 3.5.2.3. 3.5.3 Property requirements for product outside the range listed in 1.1 shall be agreed upon between purchaser and producer. 3.6 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from fore
41、ign materials and from imperfections detrimental to usage of the product. 3.7 Tolerances Shall conform to all applicable requirements of AMS2262. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of the product shall supply all samples for producers tests and shall be re
42、sponsible 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 requirements. SAE INTERNATIONAL AMS5951A Page 7 of 8 4.2 Classification of Tests All technical require
43、ments are acceptance tests and shall be performed on each heat or lot as applicable. 4.3 Sampling and Testing Shall be in accordance with AMS2371. 4.4 Reports The producer of the product shall furnish with each shipment a report showing the producers name and country where the metal was melted (e.g.
44、, final melt in the case of metal processed by multiple melting operations) and the following results of tests and relevant information. 4.4.1 For Each Heat Composition. 4.4.2 For Each Lot 4.4.2.1 As Solution Heat Treated Tensile properties Hardness Bending properties Average grain size. 4.4.2.2 Aft
45、er Precipitation Heat Treatment Tensile properties Hardness Stress Rupture. 4.4.3 A statement that the product conforms to the other technical requirements. 4.4.4 When the product size is outside the range listed in 1.1, the report shall contain a statement to that effect. 4.4.5 When material produc
46、ed to this specification is beyond the sizes allowed in the scope or tables, or other exceptions are taken to the technical requirements listed in Section 3, (see 5.1.1) the report shall contain a statement “This material is certified as AMS5951A(EXC) because of the following exceptions:“ and the sp
47、ecific exceptions shall be listed. 4.4.6 Purchase order number Heat and lot numbers AMS5951A Product form and size Quantity. 4.5 Resampling and Retesting In accordance with AMS2371. 5. PREPARATION FOR DELIVERY 5.1 Identification In accordance with AMS2807. SAE INTERNATIONAL AMS5951A Page 8 of 8 5.1.
48、1 When technical exceptions are taken (see 4.4.5), the material shall be marked with AMS5951A(EXC). 5.2 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 trans
49、portation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer 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. 8. NOTES 8.1 Revisio
