AMS 5731L-2006

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 therefrom, 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 © 2006 SAE International All rights reserved. No part of this publication 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: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerService@sae.org SAE WEB ADDRESS: http://www.sae.org AMS 5731L AEROSPACE MATERIAL SPECIFICATION Issued JAN 1963 Revised JUN 2006 Superseding AMS 5731K Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings 15Cr - 25.5Ni - 1.2Mo - 2.1Ti - 0.006B - 0.30V Consumable Electrode Melted, 1800 °F (982 °C) Solution Heat Treated (Composition similar to UNS S66286) RATIONALE AMS 5731L incorporates changes to include cold finishing and allow tensile on bars under 0.500 inch, and is a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging, flash welded rings, or heading. 1.2 Application These products have been used typically for parts, such as flanges, cases, and fasteners, requiring moderate strength up to 1300 °F (704 °C) and oxidation resistance up to 1500 °F (816 °C), particularly those which are formed or welded and then heat treated to develop required properties, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS 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 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 724-776-4970 (outside USA), www.sae.org. AMS 2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire AMS 2243 Tolerances, Corrosion and Heat-Resistant Steel Tubing AMS 2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS 2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS 2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steel and Alloy Forgings ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ ó ó À ô ô À À À ô ô ô ô À À À À ó À ó À ô ô À ô ô À ô À ô ô À ó ó ó SAE AMS 5731L - 2 - AMS 2750 Pyrometry AMS 2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS 2808 Identification, Forgings AMS 7490 Rings, Flash Welded, Corrosion and Heat-Resistant Austenitic Steels, Austenitic-Type Iron, Nickel, or Cobalt Alloys, or Precipitation-Hardenable Alloys 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 A 370 Mechanical Testing of Steel Products ASTM B 660 Packaging/Packing of Aluminum and Magnesium Products ASTM E 139 Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials ASTM E 292 Conducting Time-for-Rupture Notch Tension Tests of Materials ASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel- Iron Alloys 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 353, by spectrochemical methods, or by other analytical methods acceptable to purchaser. TABLE 1 - COMPOSITION Element min max Carbon Manganese Silicon Phosphorus Sulfur Chromium Nickel Molybdenum Titanium Boron Vanadium Cobalt Aluminum Copper -- -- -- -- -- 13.50 24.00 1.00 1.90 0.003 0.10 -- -- -- 0.08 2.00 1.00 0.025 0.025 16.00 27.00 1.50 2.35 0.010 0.50 1.00 0.35 0.50 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS 2248. 3.2 Melting Practice Steel shall be produced by multiple melting using consumable electrode practice in the remelt cycle. 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bars, Wire, Forgings, Mechanical Tubing, and Flash Welded Rings Solution heat treated. ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ ó ó À ô ô À À À ô ô ô ô À À À À ó À ó À ô ô À ô ô À ô À ô ô À ó ó ó SAE AMS 5731L - 3 - 3.3.1.1 Bars and Wire 3.3.1.1.1 All hexagons regardless of size, and other bars 2.750 inches (69.85 mm) and under in nominal diameter or least distance between parallel sides, and wire shall be cold finished. 3.3.1.1.2 Bars, other than hexagons, over 2.750 inches (69.85 mm) in nominal diameter or least distance between parallel sides shall be hot finished and descaled or cold finished. 3.3.1.2 Forgings Shall be descaled. 3.3.1.3 Mechanical Tubing Shall be cold finished. 3.3.1.4 Flash Welded Rings Shall not be supplied unless specified or permitted on purchaser's part drawing. When supplied, rings shall be manufactured in accordance with AMS 7490. 3.3.2 Stock for Forging, Flash Welded Rings, or Heading As ordered by the forging, flash welded ring, or heading manufacturer. 3.4 Heat Treatment Bars, wire, forgings, mechanical tubing, and flash welded rings shall be solution heat treated by heating to 1800 °F ± 25 (982 °C ± 14), holding at heat for a time commensurate with cross-sectional thickness, and quenching in oil, water, or other medium acceptable to purchaser. Pyrometry shall be in accordance with AMS 2750. 3.5 Properties Product 5.0 inches (127 mm) and under in nominal diameter or least distance between parallel sides shall conform to the following requirements; hardness and tensile testing shall be performed in accordance with ASTM A 370: 3.5.1 Bars, Wire, Forgings, Mechanical Tubing, and Flash Welded Rings 3.5.1.1 As Solution Heat Treated 3.5.1.1.1 Wire and Bars 0.500 Inch and Below Wire, and bars 0.500 inch and below shall have tensile strength not higher than 105 ksi (724 MPa) or equivalent hardness (See 8.2). 3.5.1.1.2 Bars over 0.500 Inch, and Mechanical Tubing Bars over 0.500 inch, and mechanical tubing shall have hardness not higher than 201 HB, or equivalent (See 8.3), determined approximately midway between outer surface and center or inner surface as applicable. 3.5.1.1.3 Forgings and Flash Welded Rings Forgings and flash welded rings shall have hardness not higher than 201 HB, or equivalent (See 8.3). ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ óóÀôôÀÀÀôôôôÀÀÀÀóÀóÀôôÀôôÀôÀôôÀóóó SAE AMS 5731L - 4 - 3.5.1.2 After Precipitation Heat Treatment The product shall have the following properties after being precipitation heat treated by heating to 1325 °F ± 15 (718 °C ± 8), holding at heat for not less than 16 hours, and cooling in air. When permitted by purchaser, if the product fails to meet these requirements after heating as above, separate specimens may be heated to a temperature not lower than 1300 °F (704 °C) but not higher than 1400 °F (760 °C), held at heat for not less than 16 hours, and cooled in air. If such specimens meet the following requirements, the product will be acceptable. 3.5.1.2.1 Tensile Properties Shall be as shown in Table 2, determined in either the longitudinal or transverse direction except that testing in the transverse direction applies only to product from which a tensile specimen not less than 2.50 inches (63.5 mm) in length can be obtained. Testing in the longitudinal direction is not required on product tested in the transverse direction. TABLE 2 - MINIMUM ROOM TEMPERATURE TENSILE PROPERTIES Property Value Tensile Strength Yield Strength at 0.2% Offset Elongation in 4D Reduction of Area 130 ksi (896 MPa) 85 ksi (586 MPa) 15% 20% 3.5.1.2.1.1 When tensile specimens are machined from the center area of disk and hub forgings and this area lies within a 4-inch (102-mm) radius or 25% of the forging radius, whichever is the smaller dimension, elongation may be as low as 12% and reduction of area as low as 15%. 3.5.1.2.2 Hardness Shall be 248 to 341 HB, or equivalent (See 8.3). Product shall not be rejected on the basis of hardness if the tensile properties of 3.5.1.2.1 are acceptable, determined on specimens taken from the same sample as that with nonconforming hardness or from another sample with similar nonconforming hardness. 3.5.1.2.3 Stress-Rupture Properties at 1200 °F (649 °C) Shall be as follows; testing of notched specimens and of combination smooth-and-notched specimens shall be performed in accordance with ASTM E 292 and of smooth specimens in accordance with ASTM E 139: 3.5.1.2.3.1 A standard cylindrical combination smooth-and-notched specimen conforming to ASTM E 292, maintained at 1200 °F ± 3 (649 °C ± 2) while a load sufficient to produce an initial axial stress of 70.0 ksi (483 MPa) or higher is applied continuously, shall not rupture in less than 23 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 than 5% in 4D if the specimen ruptures in 48 hours or less and not less than 3% in 4D if the specimen ruptures in more than 48 hours. 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 of ASTM E 292, may be tested individually under the conditions of 3.5.1.2.3.1. The smooth specimen shall not rupture in less than 23 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 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 70.0 ksi (483 MPa) or higher shall be used to rupture or for 48 hours, whichever occurs first. After the 48 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. ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ óóÀôôÀÀÀôôôôÀÀÀÀóÀóÀôôÀôôÀôÀôôÀóóó SAE AMS 5731L - 5 - 3.5.1.2.3.4 For tubing from which a solid, round, tensile specimen cannot be cut, a full section of tubing shall be tested and shall meet the smooth bar requirements of 3.5.1.2.3.1. 3.5.2 Forging Stock 3.5.2.1 When 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 3.4 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 shall be accepted as equivalent to tests of a forged coupon. 3.5.3 Stock for Flash Welded Rings or Heading Specimens taken from 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 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 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 Tolerances Shall be as follows: 3.7.1 Bars and Wire In accordance with AMS 2241. 3.7.2 Mechanical Tubing In accordance with AMS 2243. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendor's 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. 4.2 Classification of Tests 4.2.1 Acceptance Tests The 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 Tensile properties or hardness (3.5.1.1.1) of each lot of wire as solution heat treated. 4.2.1.3 Hardness (3.5.1.1) of each lot of bars, forgings, mechanical tubing, and flash welded rings as solution heat treated. 4.2.1.4 Tensile properties (3.5.1.2.1), hardness (3.5.1.2.2), and stress-rupture properties (3.5.1.2.3) of each lot of bars, wire, forgings, mechanical tubing, and flash welded rings after precipitation heat treatment. ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ ó ó À ô ô À À À ô ô ô ô À À À À ó À ó À ô ô À ô ô À ô À ô ô À ó ó ó SAE AMS 5731L - 6 - 4.2.1.5 Tolerances (3.7) of bars, wire, and mechanical tubing. 4.2.2 Periodic Tests Tests of forging stock (3.5.2) and of stock for flash welded rings or heading (3.5.3) to demonstrate ability to develop required properties, and grain flow of die forgings (3.6.1) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be as follows: 4.3.1 Bars, Wire, Mechanical Tubing, Flash Welded Rings, and Stock for Forging, Flash Welded Rings, or Heading In accordance with AMS 2371. 4.3.2 Forgings In accordance with AMS 2374. 4.4 Reports The vendor of the product shall furnish with each shipment a report showing the results of tests for composition of each heat, and for tensile properties or hardness of wire and hardness of bars (as applicable) and mechanical tubing as solution heat treated, and tensile properties, hardness, and stress-rupture after precipitation heat treatment of each lot, and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS 5731L, size, and quantity. If forgings are supplied, the size and melt source of stock used to make the forgings shall also be included. 4.5 Resampling and Retesting Shall be as follows: 4.5.1 Bars, Wire, Mechanical Tubing, Flash Welded Rings, and Stock for Forging, Flash Welded Rings, or Heading In accordance with AMS 2371. 4.5.2 Forgings In accordance with AMS 2374. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, straight bars, wire, and mechanical tubing will be acceptable in mill lengths of 6 to 20 feet (1.8 to 6.1 m) but not more than 10% of any shipment shall be supplied in lengths shorter than 10 feet (3 m). 5.2 Identification Shall be as follows: 5.2.1 Bars, Wire, and Mechanical Tubing In accordance with AMS 2806. ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ ó ó À ô ô À À À ô ô ô ô À À À À ó À ó À ô ô À ô ô À ô À ô ô À ó ó ó SAE AMS 5731L - 7 - 5.2.2 Forgings In accordance with AMS 2808. 5.2.3 Flash Welded Rings and Stock for Forging, Flash Welded Rings, or Heading As agreed upon by purchaser and vendor. 5.3 Packaging The product shall be prepared for shipment in accordance with ASTM B 660 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. 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. 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 specification. An (R) symbol to the left of the document title indicates a complete revision of the specification, including technical revisions. Change bars and (R) are not used in original publications, nor in specifications that contain editorial changes only. 8.2 Tensile strength to hardness conversions are presented in ASTM A 370. 8.3 Hardness conversion tables for metals are presented in ASTM E 140. 8.4 Terms used in AMS are clarified in ARP1917. 8.5 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. 8.6 Purchase documents should specify not less than the following: AMS 5731L Form and size or part number of product desired Quantity of product desired. PREPARED BY AMS COMMITTEE “F” ݱ°§®·¹¸¬ ÍßÛ ×²¬»®²¿¬·±²¿´ Ю±ª·¼»¼ ¾§ ×ØÍ «²¼»® ´·½»²­» ©·¬¸ ÍßÛ Ò±¬ º±® λ­¿´»Ò± ®»°®±¼«½¬·±² ±® ²»¬©±®µ·²¹ °»®³·¬¬»¼ ©·¬¸±«¬ ´·½»²­» º®±³ ×ØÍ óóÀôôÀÀÀôôôôÀÀÀÀóÀóÀôôÀôôÀôÀôôÀóóó 主营业务范围：ASTMASTMASTMASTM、NASNASNASNAS、NASMNASMNASMNASM、MILMILMILMIL、ISOISOISOISO、ENENENEN、 DINDINDINDIN、JISJISJISJIS等技术标准翻译；技术资料翻译；NADCAPNADCAPNADCAPNADCAP认证 标准资料翻译；国外技术标准中文版优惠低价代购等。 业务 QQQQQQQQ：2298175560229817556022981755602298175560 专业 专注于技术翻译 诚信 实惠 物超所值的服务可靠的质量保证