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 2017 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:/standards.sae.org/AMS4954K AEROSPACE MATERIAL SPECIFICATION AMS4954 REV. K Issued 1962-01 Reaffirmed 1995-05 Revi
5、sed 2017-11 Superseding AMS4954J Titanium Alloy, Welding Wire 6Al - 4V (Composition similar to UNS R56402) RATIONALE AMS4954K results from a Five-Year Review and update of this specification that includes the addition of ASTM E2994 (3.1), removal of sample size allowance for hydrogen of Table 1 (cov
6、ered by ASTM E1447) and revises Reports (4.4). 1. SCOPE 1.1 Form This specification covers a titanium alloy in the form of wire for welding filler metal. 1.2 Application This wire has been used typically as filler metal for gas-metal-arc and gas-tungsten-arc welding of titanium with chemistry matche
7、d to weld standard grade Ti 6Al-4V alloy, but usage is not limited to such applications. 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 r
8、evision 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. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, W
9、arrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2249 Chemical Check Analysis Limits Titanium and Titanium Alloys AMS2813 Packaging and Marking of Packages of Welding Wire Standard Method AMS2814 Packaging and Marking of Packages o
10、f Welding Wire Premium Quality AMS2816 Identification Welding Wire, Tab Marking Method SAE INTERNATIONAL AMS4954 K Page 2 of 7 AMS2819 Identification, Welding Wire Direct Color Code System ARP1876 Weldability Test for Weld Filler Metal Wire ARP1917 Clarification of Terms Used in Aerospace Metals Spe
11、cifications 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 Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E539 Analysis of Titanium Alloys by X-Ray
12、Fluorescence Spectrometry ASTM E1409 Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas Fusion 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
13、 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 ASTM E2994 Analysis of Titanium and Titanium Alloys by Spark Atomic Emission Spectrometr
14、y and Glow Discharge Atomic Emission Spectrometry 3. TECHNICAL REQUIREMENTS 3.1 Wire 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 ASTM E1447, oxygen and nitrogen in accordance with ASTM
15、E1409, and other elements in accordance with ASTM E539, ASTM E2371 or ASTM E2994. Other analytical methods may be used if acceptable to the purchaser. Table 1 - Composition Element Min Max Aluminum Vanadium Iron Oxygen (3.1.1.1) Carbon (3.1.1.1) Nitrogen (3.1.1.1) Hydrogen (3.1.1.1) Yttrium (3.1.1.2
16、) Other Elements, each (3.1.1.2) Other Elements, total (3.1.1.2) Titanium 5.50 3.50 - 0.12 - - - - - - remainder 6.75 4.50 0.22 0.18 0.05 0.030 (300 ppm) 0.015 (150 ppm) 0.005 ( 50 ppm) 0.05 0.20 3.1.1 Except for carbon, hydrogen, nitrogen, and oxygen, chemical analysis of initial ingot, bar, or rod
17、 stock before drawing is acceptable provided the processes used for drawing or rolling, annealing, and cleaning are controlled to ensure continued conformance to composition requirements. 3.1.1.1 Carbon, hydrogen, nitrogen, and oxygen shall also be determined on each lot of finished wire. 3.1.1.2 De
18、termination not required for routine acceptance. SAE INTERNATIONAL AMS4954 K Page 3 of 7 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS2249. 3.1.3 When ASTM E1409 is used, sample sizes larger than those recommended may be used. 3.2 Melting Practice Alloy sh
19、all 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 using vacuum arc remelting (VAR) practice. Alloy additions are not permitted
20、 in the final VAR melt. 3.2.1 The atmosphere for nonconsumable electrode melting shall be vacuum or shall be argon and/or helium 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 Cold dr
21、awn, 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 rolled or drawn from rod or bar descaled by a process that does not affect the composition of the wire. Surface irregularities inhe
22、rent 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 Unless the contaminated surface is subsequently removed mechanically or chemically, any in-process annealing if required between rolling or drawing operations, sh
23、all be performed after cleaning the material. Annealing shall be performed in a vacuum or in protective inert atmosphere to avoid surface oxidation and adsorption of other extraneous material unless the contaminated surface is removed mechanically or chemically. 3.4.3 Butt welding is permissible pro
24、vided both ends to be joined 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 of a wire break at the wire processing station. The butt weld shall not interfere with the uniform, uninterr
25、upted feeding of the wire in machine welding 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, nor deposition of substances harmful to welding operation
26、s. 3.4.5 Surface contaminants or dissolved gases 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 Welda
27、bility Melted wire shall flow smoothly and 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, 3.5.2.2, and 3.5.2.3. SAE INTERNATIONAL AMS4954 K Page 4 of 7 3.5.2.1 Winding Filler metal in coils and on spools
28、 shall be wound so that kinks, waves, sharp bends, overlapping, or wedging are 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
29、avoid unwinding. The winding shall be level winding. 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 sur
30、face, shall form a circle (cast) within 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 (helix) not greater than shown in Table 2. Table 2 Table 2A - Cast and helix
31、 requirements inch-pound units Spool Diameter Inches Cast Inches Helix Inch 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 19 305 381 762 25 3.6 Q
32、uality Wire, as received by purchaser, shall be uniform 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 supplie
33、d in the sizes and to the tolerances shown in 3.7.1 and 3.7.2. SAE INTERNATIONAL AMS4954 K Page 5 of 7 3.7.1 Diameter Shall be as shown in Table 3. Table 3 Table 3A - Sizes and diameter tolerances, inch/pound units Form Nominal Diameter Inch Tolerance, Inch Plus Tolerance, Inch Minus Cut Lengths Cut
34、 Lengths Spools Spools Spools 0.030, 0.035, 0.045, 0.062 0.094, 0.125 0.007, 0.010, 0.015 0.020, 0.030, 0.035, 0.045 0.062, 0.094 0.002 0.002 0.0005 0.001 0.002 0.002 0.002 0.0005 0.002 0.002 Table 3B - Sizes and diameter tolerances, SI units Form Nominal Diameter Millimeters Tolerance, Millimeter P
35、lus Tolerance, Millimeter Minus Cut Lengths Cut Lengths Spools Spools Spools 0.76, 0.89, 1.14, 1.57 2.39, 3.18 0.18, 0.25, 0.38 0.51, 0.76, 0.89, 1.14 1.57, 2.39 0.05 0.05 0.013 0.025 0.05 0.05 0.05 0.013 0.05 0.05 3.7.2 Length Cut lengths shall be furnished in 36 inch (760 mm) length, unless specif
36、ied otherwise. Other standard lengths are 18, 27, or 36 inches (457, 686, or 914 mm). Length, as ordered, shall not vary more than +0, -1/2 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 p
37、roducers 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 to ensure that the wire conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Compositio
38、n (3.1), sizes and tolerances (3.7), and alloy verification (5.2) are acceptance tests and shall be performed on each heat or lot as applicable. 4.2.2 Periodic Tests Weldability (3.5.1), cast (3.5.2.2), and helix (3.5.2.3) are periodic tests and shall be performed at a frequency selected by the prod
39、ucer unless frequency of testing is specified by purchaser. 4.3 Sampling and Testing Shall be as follows; 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: SAE INTERNATIONAL AMS4954 K Page 6 of 7 4.3.1 For Acceptance T
40、ests 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 diameter obtained after thermal and chemical processing is completed. 4.4 Reports The producer shall furnish with each shipment a report showing producer i
41、dentity, country where the metal was melted (i.e., final melt in the case of metal processed by multiple melting operations), the results of tests of the filler metal per 3.1.1.1 for the carbon, oxygen, nitrogen, and hydrogen content of each lot, and stating that the wire conforms to the other techn
42、ical requirements. This report shall include the purchase order number, heat and lot numbers, AMS4954K, nominal size, and quantity. 4.5 Resampling and Retesting If any specimen used in the above tests fails to meet specified requirements, disposition of the wire may be based on the results of testin
43、g three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet specified requirements shall be cause for rejection of the wire represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Wire shall be supplied on spools in one c
44、ontinuous length for machine welding or in cut lengths for manual welding, as ordered. Wire on each spool or in each package of cut lengths shall be from the same heat of alloy. 5.2 Alloy Verification Wire on each spool or in each package of cut lengths shall be alloy verified by a method acceptable
45、 to purchaser. The alloy verification procedures of ARP4926 are recommended. 5.2.1 An 8 inch (203 mm) length of wire shall be accessible at both ends of each spool for alloy identification. 5.3 Identification Shall be in accordance with AMS2816 unless AMS2819 or other method is specified by purchase
46、r. 5.4 Packaging and Marking Shall be in accordance with AMS2813 unless AMS2814 or other 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 con
47、forming to this specification, or to modifications authorized by purchaser, will be subject to rejection. SAE INTERNATIONAL AMS4954 K Page 7 of 7 8. NOTES 8.1 Revision Indicator A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions
48、, 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 document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain edito
49、rial changes only. 8.2 Terms used in AMS are clarified in ARP1917. 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: AMS4954K Size and form (spools o
