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/AMS5930B AEROSPACE MATERIAL SPECIFICATION AMS5930 REV. B Issued 1990-10 Revised 2017-07 Superse
5、ding AMS5930A Steel, Corrosion-Resistant, Bars and Forgings 13.0Cr - 2.5Ni - 5.5Co - 2.0Mo - 0.60V (0.05 - 0.09C) Vacuum Induction Plus Vacuum Consumable Electrode Melted (Composition similar to UNS S42670) RATIONALE AMS5930B revises Condition (3.3.1.3), Reports (4.4), and Identification (5.2.4), an
6、d is a Five-Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a premium aircraft-quality, alloy steel in the form of bars, forgings, and forging stock. 1.2 Application These products have been used typically for carburized parts requiring high minimum case har
7、dness and corrosion resistance equivalent to AISI Type 440C, but usage is not limited to such applications. These products are suitable for service up to 675 F (357 C). 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this speci
8、fication 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.
9、2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2241 Tolerances, Corrosion and Heat-Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and
10、 Wire AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2300 Steel Cleanliness, Premium Aircraft-Quality, Magnetic Particle Inspection Procedure SAE INTERNATIONAL AMS5930B Page 2 of 7 AMS2371 Quality A
11、ssurance 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 Steel and Alloy Forgings AMS2806 Identification Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and All
12、oy Steels and Corrosion and Heat-Resistant Steels and Alloys AMS2808 Identification Forgings ARP1917 Clarification of Terms Used in Aerospace Metals Specifications AS1182 Standard Machining Allowance, Aircraft-Quality and Premium Aircraft-Quality Steel Bars and Mechanical Tubing 2.2 ASTM Publication
13、s 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 A370 Mechanical Testing of Steel Products ASTM A604 Macroetch Testing of Consumable Electrode Remelted Steel Bars and Billets ASTM E45 Determining the In
14、clusion Content of Steel ASTM E112 Determining Average Grain Size ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness ASTM E353 Chemical Analysis of Sta
15、inless, 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 E353, by spectrochemical methods, or by other analytical m
16、ethods acceptable to purchaser. Table 1 - Composition Element Min Max Carbon Manganese Silicon Phosphorus Sulfur Chromium Nickel Cobalt Molybdenum Vanadium 0.05 0.50 0.10 - - 12.00 2.00 4.00 1.50 0.40 0.09 1.00 0.70 0.015 0.010 14.00 3.00 7.00 2.50 0.80 SAE INTERNATIONAL AMS5930B Page 3 of 7 3.1.1 C
17、heck Analysis Composition variations shall meet the applicable requirements of AMS2248. 3.2 Melting Practice Steel shall be multiple melted using vacuum induction melting practice followed by vacuum consumable electrode remelting. 3.3 Condition The product shall be supplied in the following conditio
18、n; hardness and tensile strength shall be determined in accordance with ASTM A370: 3.3.1 Bars 3.3.1.1 Bars 0.500-Inch (12.70-mm) and Under in Nominal Diameter or Least Distance Between Parallel Sides Annealed and cold-finished having tensile strength not higher than 150 ksi (1034 MPa) or equivalent
19、hardness (see 8.2). 3.3.1.2 Bars Over 0.500-Inch (12.70-mm) in Nominal Diameter or Least Distance Between Parallel Sides Hot finished and annealed, unless otherwise ordered, having hardness not higher than 302 HB, or equivalent (see 8.3). Bars ordered annealed and cold finished may have hardness as
20、high as 311 HB, or equivalent (see 8.3). 3.3.1.3 Bars shall not be cut from plate (see 4.4.1.1). 3.3.2 Forgings Annealed. 3.3.3 Forging Stock As ordered by the forging manufacturer. 3.4 Properties The product shall conform to the following requirements: 3.4.1 Macrostructure Visual examination of tra
21、nsverse full cross-sections from bars, billets, and forging stock, etched in hot hydrochloric acid in accordance with ASTM A604, shall show no pipe or cracks. Porosity, segregation, inclusions, and other imperfections for product 36 in2(232 cm2) and under in nominal cross-sectional area shall be no
22、worse than the macrographs of ASTM A604 shown in Table 2. Table 2 - Macrostructure limits Class Condition Severity 1 2 3 4 Freckles White Spots Radial Segregation Ring Pattern A A B B SAE INTERNATIONAL AMS5930B Page 4 of 7 3.4.2 Micro-Inclusion Rating No specimen shall exceed the limits of Table 3,
23、determined in accordance with ASTM E45, Method D. Table 3 - Micro-inclusion rating limits A Thin A Heavy B Thin B Heavy C Thin C Heavy D Thin D Heavy Worst Field Severity Worst Field Frequency maximum Total Rateable Fields, Frequency, maximum 2.0 a b 1.0 1 1 1.5 a b 1.0 1 1 1.5 a b 1.0 1 1 1.5 5 c 1
24、.0 1 1 a. Combined A+B+C, not more than three fields of No. 2.0 A Type or No. 1.5 B and C Types b. Combined A+B+C, not more than eight fields c. Any number of lower rateable fields is permitted 3.4.2.1 A rateable field is defined as one which has a Type A, B, C, or D inclusion rating of at least No.
25、 1.0 thin or heavy in accordance with the Jernkontoret Chart, Plate I-r, ASTM E45 (see 8.7). 3.4.3 Average Grain Size Shall be ASTM No. 5 or finer, determined in accordance with ASTM E112. 3.4.4 Response to Heat Treatment Product 4.0 inches (102 mm) and under in nominal cross-section and specimens 4
26、.0 inches (102 mm) and under in nominal cross-section extracted from larger product shall have hardness not lower than 38 HRC or equivalent (see 8.3), determined in accordance with ASTM A370, at any location after being heated to 1900 F 25 (1038 C 14), held at heat for 15 to 30 minutes, and quenched
27、 in oil. 3.5 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. 3.5.1 Steel shall be premium aircraft-quality conforming to AMS2300. 3.5.2 Bars ordered hot rolled
28、 or cold drawn, or ground, turned, or polished, shall, after removal of the standard machining allowance in accordance with AS1182, be free of decarburization and from seams, laps, tears, and cracks open to the ground, turned, or polished surface. 3.5.3 Grain flow of die forgings, except in areas wh
29、ich contain flash-line end grain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow. 3.6 Tolerances Bars shall conform to all applicable requirements of AMS2241. SAE INTERNATIONAL AMS5930B Page 5 of 7 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for I
30、nspection The 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 requ
31、irements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), condition (3.3), macrostructure (3.4.1), micro-including rating (3.4.2), average grain size (3.4.3), response to heat treatment (3.4.4), and tolerances (3.6) are acceptance tests and shall be performed on each heat or lo
32、t as applicable. 4.2.2 Periodic Tests Frequency-severity cleanliness rating of each heat and grain flow of die forgings (3.5.3) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be a
33、s follows: 4.3.1 Bars and Forging Stock In accordance with AMS2371. 4.3.2 Forgings In accordance with AMS2374. 4.4 Reports 4.4.1 The producer of the product shall furnish with each shipment a report showing the producers name and the country where the metal was melted (e.g., final melt in the case o
34、f metal processed by multiple melting operations) and the results of tests for composition, macrostructure, micro-inclusion rating, grain size, and when performed, the frequency-severity cleanliness rating of each heat and for response to heat treatment of each lot and stating that the product confo
35、rms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5930B, size, and quantity. If forgings are supplied, the size and melt source of stock used to make the forgings shall also be included. 4.4.1.1 Report the metallurgically worked cr
36、oss sectional size and the cut size, if different (see 3.3.1.3). 4.4.2 The producer of forging stock shall furnish with each shipment a report showing the producers name and the country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and th
37、e results of tests for composition and frequency-severity cleanliness rating of each heat. This report shall include the purchase order number, heat number, AMS5930B, size, and quantity. 4.4.3 When material produced to this specification has exceptions taken to the technical requirements listed in S
38、ection 3, (see 5.2.4) the report shall contain a statement “This material is certified as AMS5930B(EXC) because of the following exceptions:“ and the specific exceptions shall be listed. SAE INTERNATIONAL AMS5930B Page 6 of 7 4.5 Resampling and Retesting Shall be as follows: 4.5.1 Bars and Forging S
39、tock In accordance with AMS2371. 4.5.2 Forgings In 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
40、 shall be supplied in lengths shorter than 10 feet (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 producer. 5.2.4 When technical exceptions are taken (see 4.4.3), the
41、 material shall be marked with AMS5930B(EXC). 5.3 Packaging 5.3.1 Product ordered cold drawn, cold rolled, ground, turned, or polished shall be protected from corrosion prior to shipment. 5.3.2 The product shall be prepared for shipment in accordance with commercial practice and in compliance with a
42、pplicable rules and regulations pertaining to the handling, packaging, and transportation 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 orde
43、rs. 7. REJECTIONS Product not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. SAE INTERNATIONAL AMS5930B Page 7 of 7 8. NOTES 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating
44、 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 complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor
45、 in documents that contain editorial changes only. 8.2 Tensile strength to hardness conversions are presented in ASTM A370. 8.3 Hardness conversion tables for metals are presented in ASTM E140. 8.4 Terms used in AMS are clarified in ARP1917. 8.5 Dimensions and properties in inch/pound units and the
46、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: AMS5930B Form and size or p
47、art number of product desired Quantity of product desired If forging stock; applicable test requirements desired, other than composition 8.7 The ASTM E45 and the associated reference micrographs were revised in 1997. Comparison plate identity number changed from III to I-r (plate II is unchanged); the contents of the referenced plates have not changed. PREPARED BY AMS COMMITTEE “F”
