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 2015 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/AMS4982F AEROSPACE MATERIAL SPECIFICATION AMS4982 REV. F Issued 1974-12 Revised 2
5、015-12 Superseding AMS4982E Titanium Alloy Wire 44.5 Cb (Composition similar to UNS R58450) RATIONALE AMS4982F results from a Five Year Review and update of this specification that revises reporting and adds AS6279. 1. SCOPE 1.1 Form The specification covers a titanium alloy in the form of wire. 1.2
6、 Application This wire has been used typically for parts, such as fasteners, where cold formability is desirable or necessary and which requires a high strength-to-weight ratio up to 800 F (427 C), but usage is not restricted to such applications. 1.3 Classification This specification covers two typ
7、es of wire based upon condition supplied, as follows: Type 1: Annealed Type 2: As drawn 1.3.1 Type 1 shall be supplied unless Type 2 is specified. 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
8、 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. SAE INTERNATIONAL AMS4
9、982F Page 2 of 6 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 Titani
10、um Alloy Bars and Wire AMS2249 Chemical Check Analysis Limits, Titanium and Titanium Alloys AMS2809 Identification, Titanium and Titanium Alloy Wrought Products AS6279 Industry Standard Practices for Production, Distribution, and Procurement of Metal Stock 2.2 ASTM Publications Available from ASTM I
11、nternational, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E8/E8M Tension Testing of Metallic Materials ASTM E112 Determining Average Grain Size ASTM E1409 Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Ine
12、rt Gas Fusion Technique ASTM E1447 Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity/Infrared Detection Method ASTM E1941 Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis ASTM E2371 Analysis of Tita
13、nium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma Atomic Emission Spectrometry 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1; carbon shall be determined in accordance with ASTM E1941, hydrogen in accordance with A
14、STM E1447, oxygen and nitrogen in accordance with ASTM E1409, and other elements in accordance with ASTM E2371. Other analytical methods may be used if acceptable to the purchaser. Table 1 - Composition Element min max Columbium 42.00 47.00 Oxygen - 0.16 Carbon - 0.04 Silicon - 0.03 Nitrogen - 0.03
15、(300 ppm) Iron - 0.03 Chromium - 0.02 Magnesium - 0.01 Manganese - 0.01 Hydrogen - 0.0035 (35 ppm) Other Elements, total (3.1.1) - 0.40 Titanium remainder SAE INTERNATIONAL AMS4982F Page 3 of 6 3.1.1 Determination not required for routine acceptance. 3.1.2 Check Analysis Composition variations shall
16、 meet the applicable requirements of AMS2249. Check analysis limits for columbium shall be within the limits of Table 1. 3.2 Melting Practice Alloy shall be multiple melted. The first melt shall be made by vacuum consumable electrode, nonconsumable electrode, electron beam cold hearth, or plasma arc
17、 cold hearth melting practice. The subsequent melt or melts shall be made under vacuum using vacuum arc remelting (VAR) practice. Alloy additions are not permitted in the final melt cycle. 3.2.1 The atmosphere for nonconsumable electrode melting shall be vacuum or shall be argon and/or helium at an
18、absolute pressure not higher than 1000 mm of mercury. 3.2.2 The electrode tip for nonconsumable electrode melting shall be water-cooled copper. 3.3 Condition 3.3.1 Type 1 Wire Cold finished (cold drawn) and annealed. 3.3.2 Type 2 Wire Cold finished (cold drawn), with drawing lubricant removed unless
19、 otherwise specified by purchaser. 3.4 Heat Treatment Type 1 wire shall be annealed by heating in vacuum (less than 0.1 m mercury) to a temperature within the range 1450 to 1600 F (788 to 871 C), holding at heat for sufficient time to produce a recrystallized structure that will meet the requirement
20、s of 3.5, and cooling as required. 3.5 Properties Wire shall conform to the following requirements: 3.5.1 Type 1 Annealed Wire 3.5.1.1 Tensile Properties Shall be as shown in Table 2, determined in accordance with ASTM E8/E 8M as applicable, with the rate of strain set at 0.005 inch/inch/minute (0.0
21、05 mm/mm/minute) and maintained within a tolerance of 0.002 inch/inch/minute (0.002 mm/mm/minute) through the 0.2% offset yield strain. Table 2 - Minimum tensile properties Properties Value Tensile Strength 65 ksi (448 MPa) Yield Strength at 0.2% Offset 60 ksi (414 MPa) Elongation in 2 Inches (50.8
22、mm) or 4D 10% Reduction of Area 50% SAE INTERNATIONAL AMS4982F Page 4 of 6 3.5.1.1.1 Yield strength and reduction of area requirements do not apply to wire under 0.125 inch (3.18 mm) in diameter. 3.5.1.2 Average Grain Size Shall be ASTM No. 5 or finer, determined in accordance ASTM E112 on a polishe
23、d and etched sample. 3.5.2 Type 2 As-Drawn Wire Properties shall be as agreed upon by purchaser and producer except that Type 2 wire annealed as in 3.4 shall also meet the requirements of 3.5.1.1 and 3.5.1.2. 3.6 Quality Wire, as received by purchaser, shall be uniform in quality and condition, soun
24、d, and free from foreign materials and from imperfections detrimental to usage of the wire. 3.7 Tolerances Shall conform to all applicable requirements of AMS2241. 3.8 Production, distribution, and procurement of metal stock shall comply with AS6279. This requirement becomes effective January 1, 201
25、7. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The producer of wire 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 t
26、o ensure that the wire conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Tests for the following requirements are acceptance tests and shall be performed on each heat or lot as applicable: 4.2.1.1 Type 1 4.2.1.1.1 Composition (3.1) of each heat. 4.2.1.1.2 Hydroge
27、n content (3.1), tensile properties (3.5.1), grain size (3.5.2) and tolerances (3.7) of each lot. 4.2.1.2 Type 2 4.2.1.2.1 Composition (3.1) of each heat. 4.2.1.2.2 Tolerances (3.7) of each lot. 4.2.2 Periodic Tests Tests of Type 2 wire to demonstrate ability to develop required properties (3.5.2) a
28、re periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS4982F Page 5 of 6 4.3 Sampling and Testing Shall be in accordance with the following; a lot shall be all wire of the same nominal size from the
29、 same heat processed at the same time: 4.3.1 For Acceptance Tests 4.3.1.1 Type 1 4.3.1.1.1 Composition One or more samples from each heat, except that for hydrogen determinations, one sample from each lot obtained after thermal and chemical processing is completed. 4.3.1.1.2 Tensile Properties and G
30、rain Size At least one sample from each lot. 4.3.1.2 Type 2 4.3.1.2.1 Composition One sample from each heat (see 8.2). 4.4 Reports The producer shall furnish with each shipment a report showing producer identity, and country where the metal was melted (i.e., final melt in the case of metal processed
31、 by multiple melting operations), the results of tests for composition of each heat, the hydrogen content, tensile properties and grain size of each lot of Type 1 wire, and stating that the wire conforms to the other technical requirements. This report shall include the purchase order number, heat a
32、nd lot numbers, AMS4982F, condition, size, specific annealing treatment used on Type 1 wire, and quantity. 4.5 Resampling and Retesting If any specimen used in the above tests fails to meet the specified requirements, disposition of the wire may be based on the results of testing three additional sp
33、ecimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the wire represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with AMS2809. 5.2 Pa
34、ckaging Wire shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the wire to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGEMENT A producer shall include
35、 this specification number and its revision letter in all quotations and when acknowledging purchase orders. SAE INTERNATIONAL AMS4982F Page 6 of 6 7. REJECTIONS Wire not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revisio
36、n Indicator 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 left of the document title indicates a complete revision of the d
37、ocument, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 When Type 2 wire is purchased for making fasteners, the procurement specification for the fasteners should specify the maximum hydrogen level.
38、8.3 Terms used in AMS are clarified in ARP1917. 8.4 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. 8.5 Purchase documents should specify not less than the following: AMS4982F Type number and size of wire desired Quantity of wire desired. PREPARED BY AMS COMMITTEE “G“
