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/AMS5629H AEROSPACE MATERIAL SPECIFICATION AMS5629 REV. H Issued 1968-11 Reaffirme
5、d 2006-10 Revised 2016-08Superseding AMS5629G Steel, 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 S13800)RATIONALE AMS5629H r
6、esults from a Limited Scope Ballot to add the requirements of AS6279 (3.8), and also revises Properties (3.5.2.2.2) and Reports (4.4.7). 1. SCOPE 1.1 Form This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, flash welded rings, and extrusions 12 inches (305 mm)
7、and under in nominal diameter, thickness or for hexagons, least distance between parallel sides, and stock of any size for forging, flash welded rings, or extrusion (see 8.7). 1.1.1 For purchase of solution treated and aged product, use the applicable AMS slash specification (see 8.5). If a slash sh
8、eet description is not specified, solution annealed material shall be supplied. A specific example of a slash specification is: AMS5629/H1000 Precipitation Hardened to H1000 condition 1.2 Application These products have been used typically for parts requiring corrosion resistance, stress-corrosion r
9、esistance, high strength up to 600 F (316 C), and good ductility and strength in the transverse 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;
10、 ARP1110 recommends practices to minimize such conditions. 1.3 Classification Steels covered by this specification are classified as follows: SAE INTERNATIONAL AMS5629H Page 2 of 10 1.3.1 Melting Practice Type 1 - Steel multiple melted using vacuum-arc consumable electrode process in the final melt
11、cycle Type 2 - Steel multiple melted using electroslag consumable electrode process in the final melt cycle. 1.3.1.1 When a type is not specified, Type I shall be supplied. 1.3.2 Maximum Delta Ferrite Content Class A 0.5% max., free ferrite Class B 1.0% max., free ferrite Class C 2.0% max., free fer
12、rite. 1.3.2.1 When no class is specified, any class may be supplied. 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 documen
13、t 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-
14、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 Wire AMS2248 Chemical Check Analysis Limits Corrosion and Heat-Resistant Steels and Alloys, Maragin
15、g and Other Highly-Alloyed Steels, and Iron Alloys AMS2300 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
16、and Forging Stock AMS2374 Quality Assurance Sampling and Testing 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 Identificat
17、ion Forgings AMS7490 Rings, Flash Welded Corrosion and Heat-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 SAE INTERNATIO
18、NAL AMS5629H Page 3 of 10 ARP1917 Clarification of Terms Used in Aerospace Metals Specifications AS6279 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 Conshoh
19、ocken, 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 E112 Determining Average Grain Size ASTM E140 Hardness Conversion Tables for Metals Relationship Among Brinel
20、l Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness ASTM E353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to
21、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 - 0.010 Sulf
22、ur - 0.008 Chromium 12.25 13.25 Nickel 7.50 8.50 Molybdenum 2.00 2.50 Aluminum 0.90 1.35 Nitrogen - 0.010 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 Shall be multi
23、ple melted using vacuum induction practice followed by either vacuum or, when specified, electroslag consumable electrode remelting (see 1.3). SAE INTERNATIONAL AMS5629H Page 4 of 10 3.3 Condition The product shall be supplied in the following condition: 3.3.1 Bars and Wire 3.3.1.1 Rounds Centerless
24、 ground or turned 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 4.4.5). 3.3.2 Fo
25、rgings and Flash 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, an
26、d descaled. 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 25 F (927 C 14 C), holding at
27、 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 testing shall be performed in acc
28、ordance with ASTM A370. SAE INTERNATIONAL AMS5629H Page 5 of 10 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
29、ASTM A604, shall show no pipe or cracks. Porosity, segregation, inclusions, and other imperfections for product 81 in2(523 cm2) and under in nominal cross-sectional area shall be no worse than the macrographs of ASTM A604 shown in Table 2. For product greater than 81 in2(523 cm2) in cross sectional
30、area, the macrostructure shall meet the requirements for product under 81 in2(523 cm2) and under in nominal cross-sectional area or the criteria shall be approved by the cognizant engineering authority. Table 2 - Macrostructure limits Class Condition Severity 1 Freckles A 2 White Spots A 3 Radial Se
31、gregation A 4 Ring Pattern B 3.5.1.2 Microstructure The product shall contain not more than the percent free ferrite as specified in appropriate class (see 1.3.2). The amount of free ferrite shall be determined in accordance with AMS2315. 3.5.2 Bars, Wire, Forgings, Flash Welded Rings, and Extrusion
32、s 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 mid-radius or quarter thickness. 3
33、.5.2.1.2.2 Forgings, Flash Welded Rings, and Extrusions Shall be not higher than 363 HB, or equivalent (see 8.3). 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, thickness or for hexagons, least distance between parallel sides an
34、d shall be ASTM No. 4 or finer for product 3.00 inches (76.2 mm) and over in nominal diameter, thickness or for hexagons, least distance between parallel sides, determined in accordance with ASTM E112 (see 8.4). SAE INTERNATIONAL AMS5629H Page 6 of 10 3.5.2.2 After Precipitation Heat Treatment The s
35、olution heat treated product 12 inches (305 mm) and under in nominal diameter, thickness or for hexagons, least distance between parallel sides, when precipitation heat treated for 4 hours + 30 minutes/ 0 minutes to a particular condition at the temperatures shown in Table 2 and cooled at a rate equ
36、ivalent to air cooling shall have the properties specified in 3.5.2.2.1 for that particular condition. Tensile tests need be made in only the H1000 precipitation heat treated condition unless purchaser specifies a different heat treated condition. Table 3 - Precipitation hardening conditions Conditi
37、on 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)3.5.2.2.1 Tensile Properties Shall be as shown in Table 4. Table 4A - Minimum tensile properties after precipitat
38、ion 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 Transverse 220 220 205 205 10 10 45 35 H1000 Longitudinal Transverse 205 205 190 190 10 10 50 40 H1025 Longitudinal Tran
39、sverse 185 185 175 175 11 11 50 45 H1050 Longitudinal Transverse 175 175 165 165 12 12 50 45 H1100 Longitudinal Transverse 150 150 135 135 14 14 50 50 H1150 Longitudinal Transverse 135 135 90 90 14 14 50 50 Table 4B - Minimum tensile properties after precipitation heat treatment, SI units Condition
40、Specimen Orientation Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % Reduction of Area % H950 Longitudinal Transverse 1517 1517 1413 1413 10 10 45 35 H1000 Longitudinal Transverse 1413 1413 1310 1310 10 10 50 40 H1025 Longitudinal Transverse 1276 1276 1207 1207 11 11 50 45
41、H1050 Longitudinal Transverse 1207 1207 1138 1138 12 12 50 45 H1100 Longitudinal Transverse 1034 1034 931 931 14 14 50 50 H1150 Longitudinal Transverse 931 931 621 621 14 14 50 50 SAE INTERNATIONAL AMS5629H Page 7 of 10 3.5.2.2.1.1 Longitudinal tensile property requirements apply to specimens taken
42、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 specimens taken in the circumferential direction from flash welded rings.
43、3.5.2.2.1.2 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 gage length varying not more than 15 degrees from perpendicular to the
44、 forging flow lines, and to specimens taken in either the radial or axial direction from flash welded rings. 3.5.2.2.1.3 Transverse 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 inch (12.7 mm) x 1/2 inch (12.7 mm) cro
45、ss-section can be take. 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. 3.5.2.2.1.4 Products tested in the transverse direction need not be test
46、ed in the longitudinal direction. 3.5.2.2.2 Mechanical property requirements for product outside of the range covered by 1.1 shall be agreed upon between purchaser and producer. 3.5.3 Forging Stock When a sample of stock is forged to a test coupon and heat treated as in 3.4, specimens taken from the
47、 heat treated coupon shall conform to the requirements of 3.5.2.2.1. If specimens taken from the stock after heat treatment as in 3.4 and 3.5.2.2 conform to the requirements of 3.5.2.2.1, the tests shall be accepted as equivalent to tests of a forged coupon. 3.5.4 Stock for Flash Welded Rings or Ext
48、rusion A sample of stock heat treated as in 3.4 and 3.5.2.2 shall conform to the requirements of 3.5.2.2.1. 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.
49、 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 Production, distribution, and procurement of metal stock shall comply with AS6279. After production and certification
