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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2013 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS5790DAEROSPACE MATERIAL SPECIFICATIONAMS5790 REV. DIssued 1984-10Reaffirmed 2008-05Revised
5、 2014-02Superseding AMS5790CSteel, Corrosion and Heat-Resistant, Welding Wire20Cr - 10Ni - 0.75CbHigh Ferrite Grade(Composition similar to UNS S34780)RATIONALEAMS5790D results from a Five Year Review and update to revise reference to the DeLong Diagram (2.3, 3.1.3) and Reports (4.4).1. SCOPE1.1 Form
6、This specification covers a corrosion and heat-resistant steel in the form of welding wire.1.2 ApplicationThis wire has been used typically as filler metal for gas-tungsten-arc or gas-metal-arc welding of corrosion and heat-resistant alloys of similar composition, but usage is not limited to such ap
7、plications.1.2.1 The relatively high ferrite content promotes weldability by combating microfissuring and minimizing cracking in heavy sections but limits use of the wire to applications not operating in the sigma forming temperature range, approximately 1100 to 1600 F (590 to 870 C).2. APPLICABLE D
8、OCUMENTSThe 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 issue is specified. When the referenced document has bee
9、n cancelled and no superseding document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable 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.
10、org.AMS2248 Chemical Check Analysis Limits, Corrosion and Heat-Resistant Steels and Alloys, Maraging and Other Highly-Alloyed Steels, and Iron AlloysSAE INTERNATIONAL AMS5790D Page 2 of 5AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products
11、and Forging StockAMS2813 Packaging and Marking of Packages of Welding Wire, Standard MethodAMS2814 Packaging and Marking of Packages of Welding Wire, Premium QualityAMS2816 Identification, Welding Wire, Tab Marking MethodAMS2819 Identification, Welding Wire, Direct Color Code SystemARP1876 Weldabili
12、ty Test for Weld Filler Metal WireARP4926 Alloy Verification and Chemical Composition Inspection of Welding Wire2.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM E 353 Chemical Analysis
13、 of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys2.3 AWS PublicationsAvailable from American Welding Society, 8669 NW 36 Street, # 130 Miami, Florida 33166-6672 or www.aws.org.DeLong, W. T. 1974. Ferrite in Austenitic Stainless Steel Weld Metal. Welding Journal 5
14、3(7): 273-s to 286-s.3. TECHNICAL REQUIREMENTS3.1 Wire CompositionShall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 353, by spectrochemical methods, or by other analytical methods acceptable to purchaser.TABLE 1 COMPOSITIONEleme
15、nt min MaxCarbon (3.1.1.1) - 0.05Manganese 1.00 2.50Silicon 0.30 0.65Phosphorus - 0.015Sulfur - 0.015Chromium 18.50 21.00Nickel 9.00 11.00Columbium 10xC 0.80Molybdenum - 0.75Tantalum - 0.05Copper - 0.50Nitrogen (3.1.1.1) - 0.006 (60 ppm)3.1.1 Chemical analysis of initial bar or rod stock before draw
16、ing is acceptable provided processes used for drawing or rolling, annealing, and cleaning are controlled to ensure continued conformance to composition requirements.3.1.1.1 Carbon and nitrogen shall also be determined periodically on finished wire (See 4.2.2).3.1.2 Check AnalysisComposition variatio
17、ns shall meet the applicable requirements of AMS2248.SAE INTERNATIONAL AMS5790D Page 3 of 53.1.3 Ferrite ControlFerrite number of the wire shall be not less than 5.0, based on the calculated ferrite content from the DeLong diagram (Reference: DeLong, W. T. 1974. Ferrite in Austenitic Stainless Steel
18、 Weld Metal. Welding Journal 53(7): 273-s to 286-s.3.2 ConditionCold worked, bright finish, in a temper and with a surface finish which will provide proper feeding of the wire in machine welding equipment.3.3 Fabrication3.3.1 Wire shall be formed from rod or bar descaled by a process which does not
19、affect the composition of the wire. Surface irregularities inherent with a forming process that does not tear the wire surfaces are acceptable provided the wire conforms to the tolerances of 3.6.3.3.2 Butt welding is permissible provided both ends to be joined are alloy verified using a method capab
20、le 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, uninterrupted feeding of the wire in machine welding equipment.3.3.3 In-process annealing, if required between col
21、d rolling or drawing operations, shall be performed in vacuum or in protective atmosphere to ensure freedom from surface oxidation and absorption of other extraneous elements.3.3.4 Residual elements, drawing compounds, oxides, dirt, oil, dissolved gases, and other foreign materials picked up during
22、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 processes which will neither result in pitting nor cause gas absorption by the wire or deposition of substances harmful to welding
23、operations.3.4 PropertiesWire shall conform to the following requirements:3.4.1 WeldabilityMelted wire shall flow smoothly and evenly during welding and shall produce acceptable welds, determined by a procedure acceptable to purchaser. ARP1876 may be used to resolve weldability disputes.3.4.2 Spoole
24、d WireShall conform to 3.4.2.1 and 3.4.2.2.3.4.2.1 CastWire, wound on standard 12-inch (305-mm) diameter spools, 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 f
25、orm a circle15 to 50 inches (381 to 1270 mm) in diameter.3.4.2.2 HelixThe 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 1 inch (25 mm).3.5 QualityWire, as received by purchaser, shall be unifo
26、rm 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.SAE INTERNATIONAL AMS5790D Page 4 of 53.6 Sizes and TolerancesWire shall be supplied in the sizes an
27、d to the tolerances shown in 3.6.1 and 3.6.2.3.6.1 DiameterShall be as shown in Table 2.TABLE 2A - SIZES AND TOLERANCES, INCH/POUND UNITSFormNominal DiameterInchToleranceInchPlus and MinusCut Lengths 0.030, 0.035, 0.045 0.001Cut Lengths 0.062, 0.078, 0.094, 0.125, 0.156, 0.187 0.002Spools 0.007, 0.0
28、10, 0.015 0.0005Spools 0.020, 0.030, 0.035, 0.045 0.001Spools 0.062, 0.078, 0.094 0.002TABLE 2B - SIZES AND TOLERANCES, SI UNITSFormNominal DiameterMillimeterToleranceMillimeterPlus and MinusCut Lengths 0.76, 0.89, 1.14 0.025Cut Lengths 1.57, 1.98, 2.39, 3.18, 3.96, 4.75 0.05Spools 0.18, 0.25, 0.38
29、0.013Spools 0.51, 0.76, 0.89, 1.14 0.025Spools 1.57, 1.98, 2.39 0.053.6.2 LengthCut 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 (-13 mm) from the length ordered.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibilit
30、y for InspectionThe vendor of wire shall supply all samples for vendors 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
31、.4.2 Classification of Tests4.2.1 Acceptance TestsComposition ( 3.1.1), ferrite number (3.1.3), sizes and tolerances (3.6), and alloy verification (5.2) are acceptance tests and shall be performed on each heat or lot as applicable.4.2.2 Periodic TestsDetermination of carbon and nitrogen on finished
32、wire (3.1.1.1), weldability (3.4.1), cast (3.4.2.1), and helix (3.4.2.2) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser.4.3 Sampling and TestingShall be in accordance with AMS2371 and as specified herein.SAE INTER
33、NATIONAL AMS5790D Page 5 of 54.4 ReportsThe vendor of wire shall furnish with each shipment a report showing the vendors name and the country where the metal was melted (e.g., final melt in the case of metal processed by multiple melting operations) and the results of tests for composition and ferri
34、te number of each heat and stating that the wire conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers, AMS5790D, nominal size, and quantity.4.5 Resampling and RetestingShall be in accordance with AMS2371.5. PREPARATION FOR DELIVERY5.
35、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 VerificationWire on each spool or in each package of cut length
36、s 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 IdentificationShall be in accordance with AMS2816 unless
37、AMS2819 or another method is specified by purchaser.5.4 Packaging and MarkingShall be in accordance with AMS2813 unless AMS2814 or another method is specified by purchaser.6. ACKNOWLEDGMENTA vendor shall mention this specification number and its revision letter in all quotations and when acknowledgi
38、ng purchase orders.7. REJECTIONSWire not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES8.1 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial c
39、hanges, 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. 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 clar
40、ified in ARP1917.8.3 Dimensions in inch/pound units are primary; dimensions in SI units 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:AMS5790DSize and form (spools or cut lengths) of wire desiredLength of cut lengths or weight of spools desiredQuantity of wire desired.PREPARED BY AMS COMMITTEE “F”
