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 2016 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/AMS5934B AEROSPACE MATERIAL SPECIFICATION AMS5934 REV. B Issued 2004-07 Reaffirme
5、d 2011-10 Revised 2016-08Superseding AMS5934A Steel, Extra High Toughness, Corrosion-Resistant, Bars, Wire, Forgings, Rings, and Extrusions 13Cr - 8.0Ni - 2.2Mo - 1.1Al Vacuum Induction Plus Consumable Electrode Melted Solution Heat Treated, Precipitation-Hardenable (Composition similar to UNS S1380
6、0) RATIONALE AMS5934B results from a Limited Scope Ballot to add the requirements of AS6279 (3.8). 1. SCOPE 1.1 Form This specification covers an extra high toughness, corrosion-resistant steel in the form of bars, wire, forgings, flash welded rings, and extrusions 12 inches (305 mm) and under, and
7、stock of any size for forging, flash welded rings, or extrusion (see 8.6). 1.1.1 For purchase of solution treated and aged product, use the applicable AMS slash specification. If a slash sheet description is not specified, solution annealed material shall be supplied. A specific example of a slash s
8、pecification is: AMS5934/H1000 Precipitation Hardened to H1000 condition. 1.2 Application These products have been used typically for parts requiring extra high toughness, corrosion resistance, stress-corrosion resistance, high strength up to 600 F (316 C), and good ductility and strength in the tra
9、nsverse direction in large section sizes, but usage is not limited to such applications. 1.2.1 Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking; ARP1110 recommends practices to minimize such conditions. SAE INTERNATIONAL AMS5934B Pa
10、ge 2 of 10 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
11、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 +1 724-
12、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 AMS2300
13、 Steel Cleanliness, Premium Aircraft-Quality Magnetic Particle Inspection Procedure AMS2315 Determination of Delta Ferrite Content AMS2371 Quality Assurance Sampling and Testing Corrosion and Heat-Resistant Steels and Alloys Wrought Products and Forging Stock AMS2374 Quality Assurance Sampling and T
14、esting Corrosion and Heat-Resistant Steel and Alloy Forgings 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 AMS7490 Rings, Flash Welded Corrosion and Hea
15、t-Resistant Austenitic Steels, Austenitic-Type Iron, Nickel, or Cobalt Alloys, or Precipitation-Hardenable Alloys ARP1110 Minimizing Stress Corrosion Cracking in Wrought Forms of Steels and Corrosion Resistant Steels and Alloys ARP1917 Clarification of Terms Used in Aerospace Metals Specifications A
16、S6279 Industry Standard Practices for Production, Distribution, and Procurement of Metal Stock 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 A370 Mechanical Testing of Steel Produ
17、cts ASTM A604 Macroetch Testing of Consumable Electrode Remelted Steel Bars and Billets 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
18、 Hardness, and Leeb Hardness ASTM E353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys ASTM E399 Plane-Strain Fracture Toughness of Metallic Materials SAE INTERNATIONAL AMS5934B Page 3 of 10 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall confo
19、rm 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 methods acceptable to purchaser. Table 1 - Composition Element min max Carbon - 0.05 Manganese - 0.10 Silicon - 0.10 Phosphorus - 0.01
20、0 Sulfur - 0.008 Chromium 12.25 13.25 Nickel 7.50 8.50 Molybdenum 2.00 2.50 Aluminum 0.90 1.35 Nitrogen - 20 ppm 3.1.1 Check Analysis Composition variations shall meet the applicable requirements of AMS2248 except that no variation over maximum is permitted for nitrogen. 3.2 Melting Practice The ste
21、el covered by this specification shall be double melted using vacuum induction melting in the first melt cycle and vacuum-arc consumable process in the second melt cycle. 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bars and Wire 3.3.1.1 Rounds Centerless ground or t
22、urned after solution heat treatment. 3.3.1.2 Hexagons, Squares, and Flats Cold finished, solution heat treated, straightened, and descaled, or hot finished, solution heat treated, straightened, and descaled, as ordered. 3.3.1.2.1 Bar shall not be cut from plate (also see 4.4.8). 3.3.2 Forgings and F
23、lash Welded Rings Solution heat treated and descaled. 3.3.2.1 Flash welded rings shall not be supplied unless specified or permitted on purchasers part drawing. When supplied, rings shall be manufactured in accordance with AMS7490. 3.3.3 Extrusions Solution heat treated, straightened, and descaled.
24、SAE INTERNATIONAL AMS5934B Page 4 of 10 3.3.4 Stock for Forging, Flash Welded Rings, or Extrusion As ordered by the forging, flash welded ring, or extrusion manufacturer. 3.4 Heat Treatment Bars, wire, forgings, flash welded rings, and extrusions shall be solution heat treated by heating to 1700 F 2
25、5 F (927 C 14 C), holding at heat for a time commensurate with section thickness, heating equipment, and procedure used, and cooling to below 60 F (16 C). Pyrometry shall be in accordance with AMS2750. 3.5 Properties The product shall conform to the following requirements; hardness and tensile testi
26、ng 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, extrusions, and stock for forging, flash welded rings, or extrusions, etched in hot hydrochloric acid in accordance with ASTM A604,
27、shall show no pipe or cracks. Porosity, segregation, inclusions, and other imperfections shall be no worse than the macrographs of ASTM A604 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 3.5.1.2 Microst
28、ructure The product shall contain not more than the following amount of free ferrite, determined in accordance with AMS2315: Type 1 1.0% max., free ferrite Type 2 0.5% max., free ferrite. 3.5.1.2.1 Type 1 shall be supplied unless Type 2 is specified. 3.5.2 Bars, Wire, Forgings, Flash Welded Rings, a
29、nd Extrusions 3.5.2.1 As Solution Treated 3.5.2.1.1 Tensile Strength Wire shall have tensile strength not higher than 175 ksi (1207 MPa) or equivalent hardness (see 8.2). 3.5.2.1.2 Hardness 3.5.2.1.2.1 Bars Shall be not higher than 363 HB or equivalent (see 8.3), determined at midradius or quarter t
30、hickness. 3.5.2.1.2.2 Forgings, Flash Welded Rings, and Extrusions Shall be not higher than 363 HB, or equivalent (see 8.3). SAE INTERNATIONAL AMS5934B Page 5 of 10 3.5.2.1.3 Average Grain Size Shall be ASTM No. 5 or finer for product up to 3.00 inches (76.2 mm) in nominal diameter or least distance
31、 between parallel sides and shall be ASTM No. 4 or finer for product 3.00 inches (76.2 mm) and over in diameter or least distance between parallel sides, determined in accordance with ASTM E112. 3.5.2.2 After Precipitation Heat Treatment: The solution heat treated product 12 inches (305 mm) and unde
32、r in nominal diameter or least distance between parallel sides, when precipitation heat treated for 4 hours 0.25 hour to a particular condition at the temperatures shown in Table 2 and cooled at a rate equivalent to air cooling shall have the properties specified in 3.5.2.2.2 and 3.5.2.2.3 for that
33、particular condition. Tensile tests need be made in only the H1000 precipitation heat treated condition unless purchaser specifies a different heat treated condition. 3.5.2.2.1 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and
34、 producer. Table 3 - Precipitation hardening conditions Condition Temperature H950 950 F 10 F (510 C 6 C) H1000 1000 F 10 F (538 C 6 C) H1025 1025 F 10 F (552 C 6 C) H1050 1050 F 10 F (566 C 6 C) H1100 1100 F 10 F (593 C 6 C) H1150 1150 F 10 F (621 C 6 C) 3.5.2.2.2 Tensile Properties Shall be as sho
35、wn in Table 4. Table 4A - Minimum tensile properties after precipitation heat treatment, inch/pound units Condition Specimen Orientation Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % Reduction of Area % H950 Longitudinal 220 205 10 45 Transverse 220 205 10 35 H1000 Longit
36、udinal 205 190 10 50 Transverse 205 190 10 40 H1025 Longitudinal 185 175 11 50 Transverse 185 175 11 45 H1050 Longitudinal 175 165 12 50 Transverse 175 165 12 45 H1100 Longitudinal 150 135 14 50 Transverse 150 135 14 50 H1150 Longitudinal 135 90 14 50 Transverse 135 90 14 50 SAE INTERNATIONAL AMS593
37、4B Page 6 of 10 Table 4B - Minimum tensile properties after precipitation heat treatment, SI units Condition Specimen Orientation Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % Reduction of Area % H950 Longitudinal 1517 1413 10 45 Transverse 1517 1413 10 35 H1000 Longitudi
38、nal 1413 1310 10 50 Transverse 1413 1310 10 40 H1025 Longitudinal 1276 1207 11 50 Transverse 1276 1207 11 45 H1050 Longitudinal 1207 1138 12 50 Transverse 1207 1138 12 45 H1100 Longitudinal 1034 931 14 50 Transverse 1034 931 14 50 H1150 Longitudinal 931 621 14 50 Transverse 931 621 14 50 3.5.2.2.2.1
39、 Longitudinal tensile property requirements apply to specimens taken in the longitudinal direction from bars, wire, and extrusions, 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, and to speci
40、mens taken in the circumferential direction from flash welded rings. 3.5.2.2.2.2 Transverse tensile property requirements apply to specimens taken approximately perpendicular to the longitudinal direction of bars and extrusions, to specimens taken from forgings with axis of specimen in the area of g
41、age length varying not more than 15 degrees from perpendicular to the forging flow lines, and to specimens taken in either the radial or axial direction from flash welded rings. 3.5.2.2.2.3 Transverse tensile property requirements apply only to products from which a test specimen not less than 2 1/2
42、 inches (63.5 mm) long can be taken. If the cross-sectional dimensions of the product permit, the transverse testing shall be of the short-transverse (ST) direction; otherwise, the orientation shall be in the long transverse (LT) direction. 3.5.2.2.2.4 Products tested in the transverse direction nee
43、d not be tested in the longitudinal direction. 3.5.2.2.3 Fracture Toughness Shall be not lower than 120 ksi-inch1/2 (132 MPa-m1/2) KIC, determined in accordance with ASTM E399 on specimens in all orientations from product 3.00 inches (76.2 mm) and over in nominal diameter or least distance between p
44、arallel sides on product tested in the H1000 condition. Unless otherwise specified by the purchaser, the product will be tested in the longitudinal LT or LR orientation. If product size precludes use of specimens which will provide valid KIC results, use of KQ values for acceptance is permissible. 3
45、.5.2.2.3.1 Minimum fracture toughness values for product in other than the H1000 condition shall be agreed upon between purchaser and supplier. 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 s
46、hall conform to the requirements of 3.5.2.2.2 and 3.5.2.2.3. If specimens taken from the stock after heat treatment as in 3.4 and 3.5.2.2 conform to the requirements of 3.5.2.2.2 and 3.5.2.2.3, the tests shall be accepted as equivalent to tests of a forged coupon. 3.5.4 Stock for Flash Welded Rings
47、or Extrusion A sample of stock heat treated as in 3.4 and 3.5.2.2 shall conform to the requirements of 3.5.2.2.2 and 3.5.2.2.3. SAE INTERNATIONAL AMS5934B Page 7 of 10 3.6 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials
48、 and from imperfections detrimental to usage of the product. 3.6.1 Steel shall be premium aircraft-quality conforming to AMS2300. 3.7 Tolerances Bars and wire shall conform to all applicable requirements of AMS2241. Tolerances for extrusions shall be as specified on the extrusion drawing. 3.8 Produc
49、tion, distribution, and procurement of metal stock shall comply with AS6279. After production and certification to the specified requirements, cutting in a plane perpendicular to the short transverse dimension is permitted. The requirement for compliance with AS6279 becomes effective 04/01/2018. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection Th
