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 ther
2、efrom, 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
3、publication 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: +1 724-776-49
4、70 (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/AMS6501E AEROSPACE MATERIAL SPECIFICATION AMS6501 REV. E Issued 1984-10 Revised 2017-11 Supers
5、eding AMS6501D Steel, Maraging, Welding Wire 18Ni - 8.0Co - 4.9Mo - 0.40Ti - 0.10Al Vacuum Induction Melted, Environment Controlled Packaging (Composition similar to UNS K92890) RATIONALE AMS6501E results from a Five-Year Review and update of this specification that revises chemical analysis testing
6、 methods (3.1), requires hydrogen testing on finished wire (3.1.1.1), revises fabrication (3.4) and tensile testing specification (3.5.1 and 4.3.1), adds winding requirement (3.5.3.3) revises testing requirements (4.2), radiography specification (4.3.1) and ordering (8.4). 1. SCOPE 1.1 Form This spe
7、cification covers a maraging steel in the form of welding wire. 1.2 Application This wire has been used typically as filler metal for inert gas-metal-arc welding of critical weldments of maraging steels requiring a joint capable of being heat treated to 255 ksi (1758 MPa) tensile strength, but usage
8、 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 revision of a document unless a specific document is
9、sue 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 15096-0001, Tel: 877-606-7323 (inside
10、 USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron Alloys AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Al
11、loys, Wrought Products and Forging Stock AMS2813 Packaging and Marking of Packages of Welding Wire, Standard Method SAE INTERNATIONAL AMS6501E Page 2 of 7 AMS2814 Packaging and Marking of Packages of Welding Wire, Premium Quality AMS2816 Identification, Welding Wire, Tab Marking Method AMS2819 Ident
12、ification, Welding Wire, Direct Color Code System AMS6520 Steel, Maraging, Sheet, Strip, and Plate, 18Ni - 7.8Co - 4.9Mo - 0.40Ti - 0.10Al, Consumable Electrode Melted, Solution Heat Treated ARP1876 Weldability Test for Weld Filler Metal Wire ARP1917 Clarification of Terms Used in Aerospace Metals S
13、pecifications 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 A370 Mechanical Testing of Steel Produc
14、ts ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products ASTM D2650 Chemical Composition of Gases by Mass Spectrometry ASTM E1032 Radiographic Examination of Weldments 3. TECHNICAL REQUIREMENTS 3.1 Wire Composition Shall conform to the percentages by wei
15、ght shown in Table 1, determined in accordance with ASTM A751, or by other analytical methods acceptable to purchaser. Table 1 - Composition Elements Min Max Carbon (3.1.1.1) - 0.03 Manganese - 0.10 Silicon - 0.10 Phosphorus - 0.010 Sulfur - 0.010 Nickel 17.00 19.00 Cobalt 7.50 8.50 Molybdenum 4.60
16、5.20 Titanium 0.30 0.50 Aluminum 0.05 0.15 Boron - 0.003 ( 30 ppm) Zirconium - 0.010 Oxygen (3.1.1.1) - 0.010 (100 ppm) Nitrogen (3.1.1.1) - 0.0050 ( 50 ppm) Hydrogen (3.1.1.1) - 0.0010 ( 10 ppm) SAE INTERNATIONAL AMS6501E Page 3 of 7 3.1.1 Chemical analysis of initial ingot, bar, or rod stock befor
17、e drawing, other than when analyses are required to be performed on the finished wire, 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 Hydrogen shall be determined on each lo
18、t of finished wire (see 4.2.1) in accordance with ASTM D2650. Carbon, oxygen, and nitrogen shall also be determined periodically on finished wire (refer to 4.2.2). 3.1.2 Check Analysis Composition variations shall meet the applicable requirements of AMS2248. No variation over maximum is permitted fo
19、r oxygen, nitrogen, and hydrogen. 3.2 Melting Practice Steel shall be vacuum induction melted (VIM); it may be remelted using consumable electrode vacuum practice (VAR) in the remelt cycle, but remelting is not required. 3.3 Condition Cold worked, bright finish, in a temper and with a surface finish
20、 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 the composition of the wire. Surface irregularities inherent with a forming process that do not tear the wire surface are
21、acceptable provided the wire conforms to the tolerances of 3.7. 3.4.2 In-process annealing between cold rolling or drawing operations shall be performed in a protective atmosphere to avoid surface oxidation and adsorption of other extraneous elements. 3.4.3 Butt welding is permissible only at diamet
22、ers larger than the final provided 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 at the wire processing station. The butt weld shall not interfere with uniform,
23、uninterrupted 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 that will neither result in pitting nor cause gas absorption by the wire or deposition of substances harmful to welding opera
24、tions. 3.4.5 Residual elements, drawing compounds, oxides, dirt, oil, dissolved gases and other foreign materials 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 by cleaning
25、processes that will neither result in pitting nor cause gas adsorption by the wire or deposition of substances harmful to the welding operations. 3.5 Properties Wire shall conform to the following requirements: 3.5.1 Tensile Properties When specified (see 8.4), specimens prepared in accordance with
26、4.3.1 shall meet the requirements shown in Table 2, determined in accordance with ASTM A370, after being solution heat treated by heating in air to 1500 F 25 F (816 C 14 C), holding at heat for not less than 30 minutes, and cooling in air, and maraged by heating to 900 F 15 F (482 C 8 C), holding at
27、 heat for 3 to 5 hours, and cooling in air. SAE INTERNATIONAL AMS6501E Page 4 of 7 Table 2 - Minimum tensile properties Property Value Tensile Strength 255 ksi (1758 MPa) Yield Strength at 0.2% Offset 245 ksi (1689 MPa) Elongation in 2 inches (50.8 mm) 4% 3.5.2 Weldability Melted wire shall flow smo
28、othly and evenly during welding and shall produce acceptable welds. ARP1876 may be used to resolve disputes. 3.5.3 Spooled Wire Shall conform to 3.5.3.1, 3.5.3.2 and 3.5.3.3. 3.5.3.1 Cast Wire, wound on standard 12-inch (305-mm) diameter spools, shall have imparted to it a curvature such that a spec
29、imen 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 15 to 50 inches (381 to 1270 mm) in diameter. 3.5.3.2 Helix The specimen on which cast was determined, when laid on a flat surface and measured between ad
30、jacent turns, shall show a vertical separation not greater than 1 inch (25 mm). 3.5.3.3 Winding Filler metal in coils and on spools 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
31、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 on spools shall be level winding. 3.6 Quality Wire, as received by purchaser, shall be uniform in quality and condition, sound, and free fro
32、m 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 3.7.2. 3.7.1 Diameter Shall be as shown in Ta
33、ble 3. SAE INTERNATIONAL AMS6501E Page 5 of 7 Table 3 Table 3A - Sizes and diameter tolerances, inch/pound units Form Nominal Diameter Inch Tolerance Inch Plus and Minus Cut Lengths 0.030, 0.035, 0.045 0.001 Cut Lengths 0.062, 0.094, 0.125 0.002 Spools 0.007, 0.010, 0.015, 0.020 0.0005 Spools 0.030,
34、 0.035, 0.045 0.001 Spools 0.062, 0.094 0.002 Table 3B - Sizes and diameter tolerances, SI units Form Nominal Diameter Millimeters Tolerance Millimeter Plus and Minus Cut Lengths 0.76, 0.89, 1.14 0.025 Cut Lengths 1.57, 2.39, 3.18 0.05 Spools 0.18, 0.25, 0.38, 0.51 0.013 Spools 0.76, 0.89, 1.14 0.02
35、5 Spools 1.57, 2.39 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 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 wir
36、e 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 to ensure that the wire conforms to specified requirements. 4.2 Classification of Tests 4
37、.2.1 Acceptance Tests Composition (3.1.1), including hydrogen (3.1.1.1), tensile properties when specified (3.5.1), 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 Determination of carbon, oxygen, and
38、nitrogen on finished wire (3.1.1.1), weldability (3.5.2), cast (3.5.3.1), and helix (3.5.3.2) 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 in accordance with AMS2371 and as s
39、pecified herein. SAE INTERNATIONAL AMS6501E Page 6 of 7 4.3.1 Specimens for tensile testing, when specified, shall be obtained from a single-vee-groove, butt-joint weld made between two pieces of AMS6520 plate, nominally 0.250 inch (6.35 mm) thick. The weld metal shall be finished flush with the par
40、ent metal on both faces. The weld area in the location of the tensile specimen or specimens shall be free from defects detrimental to tensile properties of the weld, determined by radiographic inspection in accordance with ASTM E1032. A standard sheet-type rectangular tensile specimen shall be prepa
41、red and tested in accordance with ASTM A370, with the weld in the approximate center of the gage length and perpendicular to the longitudinal axis of the specimen. 4.4 Reports The producer of wire shall furnish with each shipment a report showing the results of tests for composition of each heat and
42、 tensile properties of each lot when specified, and stating that the wire conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS6501E, nominal size, and quantity. 4.5 Resampling and Retesting Shall be in accordance with AMS2371. 5
43、. PREPARATION FOR DELIVERY 5.1 Wire shall be supplied either on spools in one continuous 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 steel. 5.2 Alloy Verification Wire on each spool o
44、r in each package of cut lengths shall be alloy verified by a method acceptable to purchaser. The alloy verification procedures of 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
45、by tab marking in accordance with AMS2816 unless color coding in accordance with AMS2819 or another method is specified by purchaser. 5.4 Packaging and Marking Shall be by premium quality method in accordance with AMS2814 unless AMS2813 or another method is specified by purchaser. 6. ACKNOWLEDGMENT
46、A producer shall mention 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 modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A c
47、hange 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 document, includ
48、ing technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. SAE INTERNATIONAL AMS6501E Page 7 of 7 8.2 Terms used in AMS are clarified in ARP1917. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temper
49、atures 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: AMS6501E Size and form (spools or cut lengths) of wire desired Length of cut lengths or weight of spools desired Quantity of wire desired. If tensile testing
