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/AMS4953G AEROSPACE MATERIAL SPECIFICATION AMS4953 REV. G Issued 1958-03 Revised 2
5、015-12 Superseding AMS4953F Titanium Alloy Welding Wire 5Al - 2.5Sn (Composition similar to UNS R54520) RATIONALE AMS4953G results from a Five Year Review and update of this specification that includes the removal of sample size allowance for hydrogen of Table 1 (covered by ASTM E1447) and revises t
6、he report paragraph (4.4). 1. SCOPE 1.1 Form This specification covers a titanium alloy in the form of welding wire. 1.2 Application This wire has been used typically for gas-metal-arc and gas-tungsten-arc welding, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue of t
7、he 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 referenced document has been cancelled and no sup
8、erseding 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 +1 724-776-4970 (outside USA), www.sae.org. AMS2249 Chem
9、ical Check Analysis Limits, Titanium and Titanium Alloys AMS2813 Packaging and Marking of Packages of Welding Wire, Standard Method AMS2814 Packaging and Marking of Packages of Welding Wire, Premium Quality AMS2816 Identification Welding Wire, Tab Marking Method SAE INTERNATIONAL AMS4953G Page 2 of
10、7 AMS2819 Identification, Welding Wire Direct Color Code System ARP1876 Weldability Test for Weld Filler Metal Wire ARP4926 Alloy Verification and Chemical Composition Inspection of Welding Wire 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Consh
11、ohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E1409 Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique ASTM E1447 Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity/Infrared Detect
12、ion Method ASTM E1941 Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis ASTM E2371 Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled Plasma Atomic Emission Spectrometry 3. TECHNICAL REQUIREMENTS 3.1 Composition S
13、hall conform to the percentages by weight shown in Table 1; carbon shall be determined in accordance with ASTM E1941, hydrogen in accordance with ASTM E1447, oxygen and nitrogen in accordance with ASTM E1409, and other elements in accordance with ASTM E2371. Other analytical methods may be used if a
14、cceptable to the purchaser. Table 1 - Composition Element min max Aluminum 4.50 5.75 Tin 2.00 3.00 Iron - 0.50 Oxygen (3.1.1.1) - 0.175 Carbon (3.1.1.1) - 0.08 Nitrogen (3.1.1.1) - 0.05 Hydrogen (3.1.1.1) - 0.015 (150 ppm) Yttrium (3.1.1.2) - 0.005 ( 50 ppm) Other Elements, each (3.1.1.2) - 0.10 Oth
15、er Elements, total (3.1.1.2) - 0.40 Titanium remainder 3.1.1 Except for carbon, oxygen, nitrogen, and hydrogen, chemical analysis of initial ingot, bar, or rod stock before drawing is acceptable provided the processes used for drawing or rolling, annealing, and cleaning are controlled to ensure cont
16、inued conformance to composition requirements. 3.1.1.1 Carbon, oxygen, nitrogen, and hydrogen shall also be determined on each lot of finished wire. 3.1.1.2 Determination not required for routine acceptance. 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS224
17、9. SAE INTERNATIONAL AMS4953G Page 3 of 7 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 cold hearth melting practice. The subsequent melt or melts shall be made under
18、 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 inert gas at a pressure not higher than 1000 mm of mercury. 3.2.2 The electrode tip for nonconsumable ele
19、ctrode melting shall be water-cooled copper. 3.3 Condition Cold drawn, bright finish, in a temper and with a surface finish that will provide proper feeding of the wire in machine welding equipment. 3.4 Fabrication 3.4.1 Wire shall be formed from rod or bar descaled by a process that does not affect
20、 the composition of the wire. Surface irregularities inherent with a forming process that does not tear the wire surface are acceptable provided the wire conforms to the tolerances of 3.7. 3.4.2 In-process annealing, if required between rolling or drawing operations, shall be performed in a vacuum o
21、r in a protective atmosphere to avoid surface oxidation and adsorption of other extraneous elements. Material shall have been chemically or mechanically cleaned prior to annealing. 3.4.3 Butt welding is permissible only at diameters larger than final finished product size provided both ends to be jo
22、ined are either alloy verified using a method or methods capable of distinguishing the alloy from all other alloys processed within the facility, or the repair is made at the wire processing station. The butt weld shall not interfere with the uniform, uninterrupted feeding of the wire in machine wel
23、ding equipment. 3.4.4 Drawing compounds, oxides, dirt, oil, and other foreign materials shall be removed by cleaning processes which will neither result in pitting, nor cause gas absorption by the wire or deposition of substances harmful to welding operations. 3.4.5 Surface contaminants or dissolved
24、 gasses picked up during wire processing that can adversely affect the welding characteristics, the operation of the equipment, or the properties of the weld metal, shall be removed. 3.5 Properties Wire shall conform to the following requirements: 3.5.1 Weldability Melted wire shall flow smoothly an
25、d evenly during welding and shall produce acceptable welds. ARP1876 may be used to resolve disputes. 3.5.2 Spooled Wire Shall conform to 3.5.2.1 and 3.5.2.2 and 3.5.2.3. 3.5.2.1 Winding Filler metal in coils and on spools shall be wound so that kinks, waves, sharp bends, overlapping, or wedging are
26、not encountered, leaving the filler metal free to unwind without restriction. The outside end of the electrode (the end where welding is to begin) shall be identified so it can be located readily and shall be fastened to avoid unwinding. The winding shall be level winding. SAE INTERNATIONAL AMS4953G
27、 Page 4 of 7 3.5.2.2 Cast Wire, wound on standard diameter spools as shown in Table 2 shall have imparted to it a curvature such that a specimen sufficient in length to form one loop with a 1 inch (25 mm) overlap, when cut from the spool and laid on a flat surface, shall form a circle (cast) within
28、the limits shown in Table 2. 3.5.2.3 Helix The specimen on which cast was determined, when laid on a flat surface and measured between adjacent turns, shall show a vertical separation not greater than shown in Table 2. Table 2A - Cast and helix requirements inch/pound units Spool Diameter Inches Cas
29、t Inches Helix Inches min max max 4 2.5 9 0.50 8 10 20 0.75 12 15 30 1.00 Table 2B - Cast and helix requirements SI units Spool Diameter Millimeters Cast Millimeters Helix Millimeters min max max 102 64 229 13 203 254 508 19 305 381 782 25 3.6 Quality Wire, as received by purchaser, shall be uniform
30、 in quality and condition, sound, and free from foreign materials and from imperfections detrimental to welding operations, operation of welding equipment, or properties of the deposited weld metal. 3.7 Sizes and Tolerances Wire shall be supplied in the sizes and to the tolerances shown in 3.7.1 and
31、 3.7.2. 3.7.1 Diameter Shall be as shown in Table 3. Table 3A - Sizes and diameter tolerances, inch/pound units Form Nominal Diameter, Inch Tolerance Inch Plus Tolerance Inch Minus Cut Lengths 0.030, 0.045, 0.062, 0.078 0.002 0.002 Cut Lengths 0.094, 0.125, 0.156, 0.188 0.002 0.002 Spools 0.007, 0.0
32、10, 0.015 0.0005 0.0005 Spools 0.020, 0.030, 0.035, 0.045 0.001 0.002 Spools 0.062, 0.078, 0.094 0.002 0.002 SAE INTERNATIONAL AMS4953G Page 5 of 7 Table 3B - Sizes and diameter tolerances, SI units Form Nominal Diameter, Millimeters Tolerance Millimeter Plus Tolerance Millimeter Minus Cut Lengths 0
33、.76, 1.14, 1.57, 1.98 0.05 0.05 Cut Lengths 2.39, 3.18, 3.96, 4.78 0.05 0.05 Spools 0.18, 0.25, 0.38 0.013 0.013 Spools 0.51, 0.76, 0.89, 1.14 0.025 0.05 Spools 1.57, 1.98, 2.39 0.05 0.05 3.7.2 Length Cut lengths shall be furnished in 18, 27, or 36 inch (457, 686, or 914 mm) lengths, as ordered, and
34、 shall not vary more than +0, -0.5 inch (+0, -13 mm) from the length ordered. 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
35、 right to sample and to perform any confirmatory testing deemed necessary to ensure that the wire conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), alloy verification (5.2), and sizes and tolerances (3.7) are acceptance tests and shall be perfo
36、rmed on each heat or lot as applicable. 4.2.2 Periodic Tests Weldability (3.5.1), cast (3.5.2.1) and helix (3.5.2.2) 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 as follows;
37、a lot shall be all wire of the same nominal size from the same heat processed under the same conditions in the same production run: 4.3.1 For Acceptance Tests 4.3.1.1 Composition One sample from each heat, except that for carbon, oxygen, nitrogen, and hydrogen, one sample from each lot at finished d
38、iameter, obtained after thermal and chemical processing is completed. SAE INTERNATIONAL AMS4953G Page 6 of 7 4.4 Reports The producer shall furnish with each shipment a report showing producer identity, country where the metal was melted (e.g., final melt in the case of metal processed by multiple m
39、elting operations) and the results of tests for composition of each heat and for the carbon, oxygen, nitrogen, and hydrogen content of each lot, and state that the wire conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS4953G,
40、nominal size, 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 specimens for each original nonconforming specimen. Failure of any retest specime
41、n to meet the specified requirements shall be cause for rejection of the wire represented and no additional testing shall be permitted. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Wire shall be supplied either on spools in one continuous length for machine welding or in c
42、ut lengths for manual welding, as ordered. Wire on each spool or in each package of cut lengths shall be from the same lot. 5.2 Alloy Verification Wire from each spool or in each package of cut lengths shall be alloy verified by a method acceptable to purchaser. The alloy verification procedures of
43、ARP4926 are recommended. 5.2.1 An 8 inch (203 mm) length of wire shall be made accessible at both ends of each spool for alloy verification. 5.3 Identification Shall be in accordance with AMS2816 unless AMS2819 or another method specified by purchaser. 5.4 Packaging and Marking Shall be in accordanc
44、e with AMS2813 unless AMS2814 or another method is specified by purchaser. 6. ACKNOWLEDGMENT A producer shall include this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Wire not conforming to this specification, or to modificatio
45、ns authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision 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) s
46、ymbol 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 in documents that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917. SAE INTERNATIONAL AMS
47、4953G Page 7 of 7 8.3 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. 8.4 Purchase documents should specify not less than the following: AMS4953G Size and form (spools or cut lengths) of wire desired Length of cut lengths or weight of spools desired Quantity of wire desired. PREPARED BY AMS COMMITTEE “G“
