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/AMS5929 AEROSPACE MATERIAL SPECIFICATION AMS5929 Issued 2008-10Reaffirmed 2014-06
5、 Steel, Corrosion-Resistant, Bars and Forgings 11.5Cr -10Ni 1.0Al 0.5Ti 1.0Cu 1.0W Vacuum Induction Plus Vacuum Consumable Electrode Melted Solution Heat Treated, Precipitation Hardenable RATIONALE This document has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE 1.1 Form Th
6、is specification covers a corrosion-resistant steel in the form of bars, forgings, and forging stock. 1.2 Application These products have been used typically for heat-treated parts requiring stress corrosion resistance, along with a combination of high strength and high toughness up to 800 F (427 C)
7、 with good ductility and strength in the transverse direction, but usage is not limited to such applications. 1.2.1 Certain design, processing procedures, or environmental conditions may cause these products to become susceptible to stress-corrosion cracking; ARP1110 recommends practices to minimize
8、 such conditions. 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. Wh
9、en 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
10、724-776-4970 (outside USA), www.sae.org. AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AM
11、S2300 Steel Cleanliness, Premium Aircraft-Quality, Magnetic Particle Inspection Procedure AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock AMS2374 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant St
12、eel and Alloy Forgings SAE INTERNATIONAL AMS5929 Page 2 of 8 AMS2750 Pyrometry AMS2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS2808 Identification, Forgings AS1182 Standard Stock Removal Allowance, A
13、ircraft-Quality and Premium Aircraft-Quality Steel Bars and Mechanical Tubing 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 A 604 M
14、acroetch Testing of Consumable Electrode Remelted Steel Bars and Billets ASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys ASTM E 399 Plane-Strain Fracture Toughness of Metallic Materials 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall
15、 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 - 0.03 Manganese - 0.25 Silicon - 0.25 Phosphorus
16、 - 0.010 Sulfur - 0.010 Chromium 11.00 12.50 Nickel 9.25 10.75 Molybdenum 1.0 1.75 Tungsten 0.5 1.5 Titanium 0.20 0.50 Aluminum 0.7 1.5 Copper 0.5 1.5 Nitrogen - 0.01 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2248. 3.2 Melting Practice Product shall be
17、multiple melted using vacuum induction melting followed by vacuum consumable electrode remelt practice. SAE INTERNATIONAL AMS5929 Page 3 of 8 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bars 3.3.1.1 Rounds Solution heat treated and turned, centerless ground, and pol
18、ished. 3.3.1.2 Hexagons Solution heat treated and descaled. 3.3.1.3 Squares and Flats Hot finished, solution heat treated, and machined or descaled. 3.3.1.4 Forgings Solution heat treated and descaled. 3.3.2 Forging Stock As ordered by the forging manufacturer. 3.4 Heat Treatment Bars and forgings s
19、hall be solution heat treated by heating to 1700 F 25 (927 C 14), holding at heat for 60 minutes 15, water quenching to 300 F (149 C) or cooler then further cooling to 40 F (4 C) or colder, holding at that temperature for not less than four hours, and warming in air to room temperature. Pyrometry sh
20、all be in accordance with AMS2750. 3.5 Properties The product shall conform to the following requirements; tensile and hardness testing shall be performed in accordance with ASTM A 370. 3.5.1 All Products 3.5.1.1 Macrostructure Visual examination of transverse full cross-sections from bars, billets,
21、 and forging stock, etched in hot hydrochloric acid in accordance with ASTM A 604, shall show no pipe or cracks. Porosity, segregation, inclusions, and other imperfections for product 36 squares inches (232 cm2) and under in nominal cross-sectional area shall be no worse than the macrographs of ASTM
22、 A 604 shown in Table 2. TABLE 2 - MACROSTRUCTURE LIMITS Class Condition Severity 1 Freckles A 2 White Spots A 3 Radial Segregation A 4 Ring Pattern B 3.5.2 Bars and Forgings 3.5.2.1 As Solution Heat Treated SAE INTERNATIONAL AMS5929 Page 4 of 8 3.5.2.1.1 Hardness 3.5.2.1.1.1 Bars Not higher than 35
23、 HRC, or equivalent (See 8.2), determined at mid-radius or quarter thickness. 3.5.2.1.1.2 Forgings Not higher than 35 HRC, or equivalent (See 8.2). 3.5.2.2 After Precipitation Heat Treatment The solution heat treated product, 8 inches (203 mm) and under in nominal diameter or maximum cross-sectional
24、 dimension, precipitation heat treated to the temperature and time shown in Table 3 and cooled in air, oil, or other suitable liquid quench (See 8.3), shall have the properties specified in 3.5.2.2.1, 3.5.2.2.2, and 3.5.2.2.3. Tensile and hardness tests need only be made in the H1000 condition unles
25、s purchaser specifies another heat treated condition for testing. TABLE 3 - PRECIPITATION HEAT TREATING PARAMETERS Condition Temperature Time H950 950 F 10 (510 C 6) 4 hours 0.3 H1000 1000 F 10 (538 C 6) 4 hours 0.3 3.5.2.2.1 Tensile Properties Shall be as shown in Table 4. TABLE 4A - MINIMUM TENSIL
26、E PROPERTIES, INCH/POUND UNITS Condition Specimen Orientation Tensile Strength ksi Yield Strengthat 0.2% Offsetksi Elongation in 2 Inches or 4D % Reductionof Area % H950 Longitudinal Transverse 238 238 224 224 10 8 42 31 H1000 Longitudinal 215 205 11 49 Transverse 215 205 11 45 TABLE 4B - MINIMUM TE
27、NSILE PROPERTIES, SI UNITS Condition Specimen Orientation Tensile StrengthMPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % Reductionof Area % H950 Longitudinal Transverse 1 641 1 634 1 544 1 544 10 8 42 31 H1000 Longitudinal Transverse 1 482 1 482 1 413 1 413 11 11 49 45 3.5.2.2.1
28、.1 Longitudinal tensile property requirements apply to specimens taken in the longitudinal direction from bars and to specimens taken from forgings with axis of specimen in the area of gage length varying not more than 15 degrees from parallel to the forging flow lines. 3.5.2.2.1.2 Transverse tensil
29、e property requirements apply to specimens taken approximately perpendicular to the longitudinal direction of bars and to specimens taken from forgings with axis of specimens in the area of gage length varying not more than 15 degrees from perpendicular to the forging flow lines. 3.5.2.2.1.3 Transve
30、rse tensile property requirements apply only to products from which a test specimen not less than 2-1/2 inches (63.5 mm) long or 1/2 u 1/2 inch (12.7 u 12.7 mm) cross-section can be taken. 3.5.2.2.1.4 Products tested in the transverse direction need not be tested in the longitudinal direction. SAE I
31、NTERNATIONAL AMS5929 Page 5 of 8 3.5.2.2.2 Hardness Shall not be lower than shown in Table 5, or equivalent (See 8.2). Product shall not be rejected on the basis of hardness if the tensile property requirements of Table 4 are acceptable, determined on specimens taken from the same sample as that wit
32、h nonconforming hardness or from another sample with similar nonconforming hardness. TABLE 5 - MINIMUM HARDNESS Condition Hardness, HB HRC H950 442 47 H1000 400 43 3.5.2.2.3 Fracture Toughness Shall not be lower than shown in Table 6, determined in accordance with ASTM E 399 on specimens in the long
33、itudinal LT or LR orientation from product 3.00 inches (76.2 mm) and over in nominal section thickness. If product size precludes use of specimens which will provide valid KICresults, use of KQvalues for acceptance is permissible. TABLE 6 - MINIMUM FRACTURE TOUGHNESS, KICCondition Fracture Toughness
34、ksi inch Fracture Toughness MPa m H950 70 77 H1000 95 104.5 3.5.3 Forging Stock When a sample of stock is forged to a test coupon and heat treated as in 3.4 and 3.5.2.2, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.2.2.1, 3.5.2.2.2, and 3.5.2.2.3. If specimen
35、s taken from the stock after heat treatment as in 3.4 and 3.5.2.2 conform to the requirements of 3.5.2.2.1, 3.5.2.2.2 and 3.5.2.2.3, the tests shall be accepted as equivalent to tests of a forged coupon. 3.6 Quality 3.6.1 Steel shall be premium aircraft quality conforming to AMS2300. 3.6.2 The produ
36、ct, 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. 3.6.3 Bars ordered hot rolled or cold drawn, or ground, turned, or polished shall, after removal of the standard machining allow
37、ance in accordance with AS1182, be free from seams, laps, tears, and cracks open to the ground, turned, or polished surface. 3.6.4 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 f
38、low. 3.7 Tolerances Bars shall conform to all applicable requirements of AMS2241. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility 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 reser
39、ves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements. SAE INTERNATIONAL AMS5929 Page 6 of 8 4.2 Classification of Tests 4.2.1 Acceptance Tests The following requirements are acceptance tests and shall be perfor
40、med on each heat or lot as applicable. 4.2.1.1 Composition (3.1) and macrostructure rating (3.5.1.1) of each heat. 4.2.1.2 Hardness (3.5.2.1.2) of bars and forgings, as solution heat treated. 4.2.1.3 Tensile properties (3.5.2.2.1) and hardness (3.5.2.2.2) of bars and forgings after precipitation hea
41、t treatment at 1000 F (538 C). 4.2.1.4 Tolerances (3.7) of bars. 4.2.2 Periodic Tests The 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 Tensile properties (3.5.2.2.1) and hardness
42、(3.5.2.2.2) of all product forms in other than the specified precipitation hardened condition. 4.2.2.2 Fracture toughness (3.5.2.2.3) of bars and forgings after precipitation heat treatment. 4.2.2.3 Frequency-severity cleanliness rating (3.6.1). 4.2.2.4 Grain flow of die forgings (3.6.4). 4.3 Sampli
43、ng and Testing Shall be as follows: 4.3.1 Bars and Forging Stock In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.4 Reports The vendor of the product shall furnish with each shipment a report showing the following results of tests and relevant information: 4.4.1 For each heat
44、 Composition Macrostructure. 4.4.2 For each lot of bars and forgings As solution heat treated: Hardness After precipitation heat treatment to the H1000 hardened condition. Tensile properties SAE INTERNATIONAL AMS5929 Page 7 of 8 4.4.3 A statement that the product conforms to the other technical requ
45、irements. 4.4.4 Purchase Order Number Heat and lot numbers AMS5929 Size Quantity. 4.4.5 If forgings are supplied, the size and melt source of stock used to make the forgings. 4.5 Resampling and Retesting Shall be as follows: 4.5.1 Bars and Forging Stock In accordance with AMS2371. 4.5.2 Forgings In
46、accordance with AMS2374. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, straight bars 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
47、(3 m). 5.2 Identification Shall be as follows: 5.2.1 Bars In accordance with AMS2806. 5.2.2 Forgings In accordance with AMS2808. 5.2.3 Forging Stock As agreed upon by purchaser and vendor. 5.3 Packaging The product shall be prepared for shipment in accordance with commercial practice and in complian
48、ce 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 in all quotations and when acknowledging purchase orders. 7. REJECTIONS
49、 Product not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. SAE INTERNATIONAL AMS5929 Page 8 of 8 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 lef
