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 2016 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 feedback on thisTechnical Report, please visithttp:/standards.sae.org/AMS5441BAEROSPACEMATERIAL SPECIFICATIONAMS5441 REV. BIssued 2006-09Revised 2016-11Superseding AMS5441ANicke
5、l Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and RingsNi - 18Cr - 2.8Mo - 5.5Cb(Nb) - 0.70Ti - 1.50Al - 10Fe - 9Co - 1WConsumable Electrode Remelted or Vacuum Induction Melted1775 F (968 C) Solution Heat Treated, Precipitation-Hardenable(Composition similar to UNS N07818)RATIONALEAMS5441B
6、revises Condition (3.3.1.3), Properties (3.5.1.3), and Reports (4.4), and is a Five Year Review and update of this specification.1. SCOPE1.1 FormThis specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings 5 inches (127 mm) and under in
7、nominal diameter or least distance between parallel sides and up to 50 in2 (323 cm2) in cross-sectional area, and stock of any size for forging, flash welded rings, or heading (see 8.5).1.2 ApplicationThese products have been used typically for parts requiring high resistance to creep and stress-rup
8、ture up to 1400 F (760 C) and oxidation resistance up to 1800 F (982 C), particularly those parts which are formed or welded and then precipitation heat treated to develop required properties, but usage is not limited to such applications.2. APPLICABLE DOCUMENTSThe issue of the following documents i
9、n 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 cancelled and no superseding document has be
10、en specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AMS2261 Tolerances Nickel, Nickel Alloy
11、, and Cobalt Alloy Bars, Rods, and WireAMS2269 Chemical Check Analysis Limits Nickel, Nickel Alloys, and Cobalt AlloysSAE INTERNATIONAL AMS5441B Page 2 of 9AMS2371 Quality Assurance Sampling and Testing Corrosion and Heat-Resistant Steels and Alloys Wrought Products and Forging StockAMS2374 Quality
12、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 Steels and AlloysAMS2808 Identification ForgingsAMS7490 Rings, Flash Wel
13、ded, Corrosion and Heat-Resistant Austenitic Steels, Austenitic-Type Iron, Nickel, or Cobalt Alloys, or Precipitation-Hardenable AlloysARP1313 Determination of Trace Elements in High Temperature AlloysARP1917 Clarification of Terms Used in Aerospace Metals Specifications2.2 ASTM PublicationsAvailabl
14、e from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM E8/E8M Tension Testing of Metallic MaterialsASTM E10 Brinell Hardness of Metallic MaterialsASTM E21 Elevated Temperature Tension Tests of Metallic MaterialsASTM E10
15、3 Rapid Indentation Hardness Testing of Metallic MaterialsASTM E112 Determining Average Grain SizeASTM E139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic MaterialsASTM E140 Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness,
16、Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb HardnessASTM E292 Conducting Time-for-Rupture Notch Tension Tests of MaterialsASTM E354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, andCobalt Alloys3. TECHNICAL REQUIREMENTS3.1 Compo
17、sitionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E354, by spectrochemical methods, by the methods of ARP1313 for lead, bismuth, and selenium, or by other analytical methods acceptable to purchaser.SAE INTERNATIONAL AMS5441B
18、 Page 3 of 9Table 1 - CompositionElement Min. Max.Carbon 0.01 0.05Manganese - 0.35Silicon - 0.35Phosphorus 0.004 0.020Sulfur - 0.0025Chromium 17.00 21.00Nickel RemainderMolybdenum 2.50 3.10Columbium (Niobium) 5.20 5.80Titanium 0.50 1.00Aluminum 1.20 1.70Cobalt 8.00 10.00Tungsten 0.80 1.40Boron 0.003
19、 0.008Copper - 0.30Lead - 0.0005 (5 ppm)Bismuth - 0.00003 (0.3 ppm)Selenium - 0.0003 (3 ppm)Iron 8.00 10.003.1.1 Check AnalysisComposition variations shall meet the applicable requirements of AMS2269.3.2 Melting PracticeAlloy shall be multiple melted using consumable electrode practice in the remelt
20、 cycle or shall be induction melted under vacuum. If consumable electrode remelting is not performed in vacuum, electrodes which have been produced by vacuum induction melting shall be used for remelting.3.3 ConditionThe product shall be supplied in the following condition:3.3.1 BarsHot or cold fini
21、shed, solution heat treated, and descaled except as specified in 3.3.1.1 and 3.3.1.2.3.3.1.1 Hot finished round bars shall be ground or turned; all other hot finished bars shall be as hot finished.3.3.1.2 Cold finished round bars shall be ground or as cold finished; all other cold finished bars shal
22、l be as cold finished.3.3.1.3 Bars shall not be cut from plate (also see 4.4.1.1).3.3.2 Forgings and Flash Welded RingsSolution heat treated and descaled.3.3.2.1.1 Flash welded rings shall not be supplied unless specified or permitted on purchasers part drawing. When supplied, rings shall be manufac
23、tured in accordance with AMS7490.3.3.3 Stock for Forging, Flash Welded Rings, or HeadingAs ordered by the forging, flash welded ring, or heading manufacturer.SAE INTERNATIONAL AMS5441B Page 4 of 93.4 Heat TreatmentBars, forgings, and flash welded rings shall be solution heat treated by heating to a
24、temperature within the range 1750 to 1800 F (954 to 982 C), holding at the selected temperature within 25 F (14 C) for 1 hour or a time commensurate with cross-sectional thickness, and cooling at a rate equivalent to an air cool or faster. Pyrometry shall be in accordance with AMS2750.3.4.1 If forgi
25、ngs are not to be machined all over, heat treatment shall be performed in a suitable protective atmosphere or, when permitted by purchaser, a suitable protective coating may be applied to the forgings in lieu of using a protective atmosphere.3.5 PropertiesThe product shall conform to the following r
26、equirements:3.5.1 Bars, Forgings, and Flash Welded Rings3.5.1.1 As Solution Heat Treated3.5.1.1.1 HardnessShall be not higher than 285 HB, or equivalent (see 8.2), determined in accordance with ASTM E10 or ASTM E103.3.5.1.1.2 Average Grain SizeShall be as follows, determined by the comparative metho
27、d of ASTM E112. In case of disagreement, the intercept (Heyn) procedure shall be used.3.5.1.1.2.1 Bars and flash welded rings under 9 in2 (58 cm2) in cross-sectional area shall exhibit an average grain size of ASTM No. 4 or finer. Due to the presence of nonrecrystallized grains, up to 20% of the cro
28、ss section of the product may have an average grain size of ASTM No. 2 to 4, determined by the intercept method of ASTM E112.3.5.1.1.2.2 Bars and flash welded rings 9 to 50 in2 (58 to 323 cm2), inclusive, in cross-sectional area and all forgings shall exhibit an average grain size of ASTM No. 4 or f
29、iner. Due to the presence of nonrecrystallized grains, up to 20% of the cross section of the product may have an average grain size of ASTM No. 1 to 3, determined by the intercept method of ASTM E112.3.5.1.1.3 MicrostructureProduct shall be free of Laves phase. Banding of acicular phase and amount o
30、f acicular phase shall conform to standards acceptable to purchaser.3.5.1.2 Response to Heat TreatmentProduct, 5 inches (127 mm) and under in nominal diameter or least distance between parallel sides, shall meet the requirements of 3.5.1.2.1, 3.5.1.2.2, and 3.5.1.2.3 after being precipitation heat t
31、reated by heating to 1450 F 15 F (788 C 8 C), hold at temperature for not less than 8 hours, cool at a rate not less than 100 F (56 C) degrees per hour to 1300 F 15 F (704 C 8 C), hold at 1300 F 15 F (704 C 8 C) for not less than 8 hours, and cool at a rate equivalent to air cool or faster.SAE INTER
32、NATIONAL AMS5441B Page 5 of 93.5.1.2.1 Tensile Properties3.5.1.2.1.1 At Room TemperatureShall be as shown in Table 2, determined in accordance with ASTM E8/E8M.Table 2A - Minimum room temperature tensile properties, inch/pound unitsTensileStrengthksiYield Strengthat 0.2% OffsetksiElongationin 4D%Red
33、uction ofArea%194 139 15 15Table 2B - Minimum room temperature tensile properties, SI unitsTensileStrengthMPaYield Strengthat 0.2% OffsetMPaElongationin 4D%Reduction ofArea%1338 958 15 153.5.1.2.1.2 At 1300 F (704 C)Shall be as specified in Table 3, determined in accordance with ASTM E21 on specimen
34、s heated to 1300 F 5 F (704 C 3 C), held at heat for not less than 20 minutes before testing, and tested at 1300 F 5 F (704 C 3 C).Table 3A - Minimum tensile properties at 1300 F, inch/pound unitsTensileStrengthksiYield Strengthat 0.2% OffsetksiElongationin 4D%Reduction ofArea%147 117 13 15Table 3B
35、- Minimum tensile properties at 704 C, SI unitsTensileStrengthMPaYield Strengthat 0.2% OffsetMPaElongationin 4D%Reduction ofArea%1014 807 13 153.5.1.2.1.3 Requirements of 3.5.1.2.1.1 and 3.5.1.2.1.2 apply to specimens taken with the axis approximately parallel to the grain flow, to specimens taken i
36、n the radial direction and in the tangential direction at the rim of disc forgings, and to specimens taken in the circumferential direction from flash welded rings.3.5.1.2.1.4 Specific locations of specimens from forgings and flash welded rings shall be as agreed upon by purchaser and producer.3.5.1
37、.2.2 HardnessShall be not lower than 331 HB, or equivalent (see 8.2), determined in accordance with ASTM E10 or ASTM E103. Product shall not be rejected on the basis of hardness if the tensile property requirements of 3.5.1.2.1.1 are acceptable, determinedon specimens taken from the same sample as t
38、hat with nonconforming hardness or from another sample with similar nonconforming hardness.3.5.1.2.3 Stress-Rupture Properties at 1300 F (704 C)Shall be as follows; testing of notched specimens and of combination smooth-and-notched specimens shall be performed in accordance with ASTM E292 and testin
39、g of smooth specimens shall be performed in accordance with ASTM E139:SAE INTERNATIONAL AMS5441B Page 6 of 93.5.1.2.3.1 A standard cylindrical combination smooth-and-notched specimen conforming to ASTM E292, maintained at 1300 F 3 F (704 C 2 C) while a load sufficient to produce an initial axial str
40、ess of 90 ksi (621 MPa) or higher is applied continuously, shall not rupture in less than 39 hours. The test shall be continued to rupture without change of load. Rupture shall occur in the smooth section and elongation of this section after rupture, measured at room temperature, shall be not less t
41、han 8% in 4D for product 5.0 inches (127 mm) and under in nominal diameter or distance between parallel sides.3.5.1.2.3.2 As an alternate procedure, separate smooth and notched specimens, machined from adjacent sections of the same piece, with gage sections conforming to the respective dimensions sh
42、own in ASTM E292 may be tested individually under the conditions of 3.5.1.2.3.1. The smooth specimen shall not rupture in less than 39 hours and elongation after rupture, measured at room temperature, shall be as specified in 3.5.1.2.3.1. The notched specimen shall not rupture in less time than the
43、companion smooth specimen, but need not be tested to rupture.3.5.1.2.3.3 The tests of 3.5.1.2.3.1 and 3.5.1.2.3.2 may be conducted using incremental loading. In such case, the load required to produce an initial axial stress of 90 ksi (621 MPa) or higher shall be used to rupture or for 39 hours, whi
44、chever occurs first. After the 39 hours and at intervals of 8 hours minimum, thereafter, the stress shall be increased in increments of 5.0 ksi (34.5 MPa). Time to rupture, rupture location, and elongation requirements shall be as specified in 3.5.1.2.3.1.3.5.1.3 Mechanical property requirements for
45、 product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer.3.5.2 Forging StockWhen a sample of stock is forged to a test coupon, 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.
46、1.2.2, and 3.5.1.2.3. If specimens taken from the stock after heat treatment as in 3.4 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.3.5.3 Stock for Flash Welded Rings or HeadingSpecimens taken fro
47、m the stock after heat treatment as in 3.4 and 3.5.1.2 shall conform to the requirements of 3.5.1.2.1, 3.5.1.2.2, and 3.5.1.2.3.3.6 QualityThe product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to us
48、age 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. QUALITY ASSURANCE PROVIS
49、IONS4.1 Responsibility for InspectionThe producer of the product shall supply all samples for producers 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 specified requirements.SAE INTERNATIONAL AMS5441B
