SAE-AMS-4982D-2007.pdf
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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 theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication ma
3、y 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: 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org AMS 4982D AEROSPACE MATERIAL SPECIFICATION Issued DEC 1974 Revised JUN 2007 Superseding AMS 4982C Titanium Alloy Wire 44.5 Cb (Composition similar to UNS R58450) RATIONALE AMS 4982D results from a Five Year Review and update
5、of this specification. 1. SCOPE 1.1 Form The specification covers a titanium alloy in the form of wire. 1.2 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
6、 C), but usage is not restricted to such applications. 1.3 Classification This specification covers two types 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 follo
7、wing 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 referenced document has been cancelled and no superseding
8、 document has been specified, the last published issue of that document shall apply. SAE AMS 4982D - 2 - 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS
9、 2241 Tolerances, Corrosion and Heat Resistant Steel, Iron Alloy, Titanium, and Titanium Alloy Bars and Wire AMS 2249 Chemical Check Analysis Limits, Titanium and Titanium Alloys AMS 2809 Identification, Titanium and Titanium Alloy Wrought Products 2.2 ASTM Publications Available from ASTM Internati
10、onal, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E 8 Tension Testing of Metallic Materials ASTM E 112 Determining Average Grain Size ASTM E 1409 Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fu
11、sion Technique ASTM E 1447 Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity/Infrared Detection Method ASTM E 1941 Determination of Carbon in Refractory and Reactive Metals and Their Alloys ASTM E 2371 Analysis of Titanium and Titanium Alloys by A
12、tomic Emission Plasma 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 E 1941, hydrogen in accordance with ASTM E 1447, oxygen and nitrogen in accordance with ASTM E 1409, and other
13、elements in accordance with ASTM E 2371. 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 (300 ppm) Iron - 0.03 Chromium - 0.02 Magnesium - 0.01 Manganese - 0.01
14、 Hydrogen (3.1.2) - 0.0035 ( 35 ppm) Other Elements, total (3.1.1) - 0.40 Titanium remainder 3.1.1 Determination not required for routine acceptance. 3.1.2 When ASTM E 1447 is used, sample size may be as large as 0.35 gram. 3.1.3 Check Analysis Composition variations shall meet the applicable requir
15、ements of AMS 2249. Check analysis limits for columbium shall be within the limits of Table 1. -,-,- SAE AMS 4982D - 3 - 3.2 Melting Practice Alloy shall be multiple melted. Melting cycle(s) prior to the final melting cycle shall be made using vacuum consumable electrode, nonconsumable electrode, el
16、ectron beam cold hearth, or plasma arc cold hearth melting practice. The final melting cycle shall be made under vacuum using vacuum arc remelting (VAR) practice with no alloy additions permitted. 3.2.1 The atmosphere for nonconsumable electrode melting shall be vacuum or shall be argon and/or heliu
17、m at an 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 and annealed. 3.3.2 Type 2 Wire Cold finished, with drawing lubricant removed, unless otherwise specif
18、ied 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 requirements of 3.5, and coo
19、ling 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 E 8 as applicable, with the rate of strain maintained at 0.003 to 0.007 inch/inch per minute (0.00
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