1、Specification forThermal SprayFeedstockWireand RodsAWS C2.25/C2.25M:2012An American National StandardAWS C2.25/C2.25M:2012An American National StandardApproved by the American National Standards Institute September 5, 2012Specification for Thermal Spray FeedstockWire and Rods2nd EditionSupersedes AW
2、S C2.25/C2.25M:2002Prepared by the American Welding Society (AWS) C2 Committee on Thermal SprayUnder the Direction of the AWS Technical Activities CommitteeApproved by the AWS Board of DirectorsAbstractThis specification provides the as-manufactured chemical composition classification requirements f
3、or solid and compos-ite wires and ceramic rods for thermal spraying. Requirements for standard sizes, marking, manufacturing, and packag-ing are included.International Standard Book Number: 978-0-87171-826-6American Welding Society8669 Doral Blvd., Suite 130, Doral, FL 33166 2012 by American Welding
4、 SocietyAll rights reserved Printed in the United States of AmericaPhotocopy Rights. No portion of this standard may be reproduced, stored in a retrieval system, or transmitted in anyform, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyri
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6、 222 Rosewood Drive, Danvers, MA 01923, tel: (978) 7508400;Internet: .AWS C2.25/C2.25M:2012iiAWS C2.25/C2.25M:2012iiiStatement on the Use of American Welding Society StandardsAll standards (codes, specifications, recommended practices, methods, classifications, and guides) of the AmericanWelding Soc
7、iety (AWS) are voluntary consensus standards that have been developed in accordance with the rules of theAmerican National Standards Institute (ANSI). When AWS American National Standards are either incorporated in, ormade part of, documents that are included in federal or state laws and regulations
8、, or the regulations of other governmen-tal bodies, their provisions carry the full legal authority of the statute. In such cases, any changes in those AWS standardsmust be approved by the governmental body having statutory jurisdiction before they can become a part of those laws andregulations. In
9、all cases, these standards carry the full legal authority of the contract or other document that invokes theAWS standards. Where this contractual relationship exists, changes in or deviations from requirements of an AWS stan-dard must be by agreement between the contracting parties.AWS American Nati
10、onal Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve consensus. While AWS administers theprocess and establishes rules to promote fairness in the development of consensus, it does not ind
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17、d.AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.Official interpretations of any of the technical requirements of this standard may only be obtained by sending a request,in writing, to the appropriate technical committee. Such requests sho
18、uld be addressed to the American Welding Society,Attention: Managing Director, Technical Services Division, 8669 Doral Blvd., Suite 130, Doral, FL 33166 (see AnnexA). With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be ren-dered. These opinions are
19、 offered solely as a convenience to users of this standard, and they do not constitute professionaladvice. Such opinions represent only the personal opinions of the particular individuals giving them. These individualsdo not speak on behalf of AWS, nor do these oral opinions constitute official or u
20、nofficial opinions or interpretations ofAWS. In addition, oral opinions are informal and should not be used as a substitute for an official interpretation.This standard is subject to revision at any time by the AWS C2 Committee on Thermal Spray. It must be reviewed everyfive years, and if not revise
21、d, it must be either reaffirmed or withdrawn. Comments (recommendations, additions, or dele-tions) and any pertinent data that may be of use in improving this standard are required and should be addressed to AWSHeadquarters. Such comments will receive careful consideration by the AWS C2 Committee on
22、 Thermal Spray and theauthor of the comments will be informed of the Committees response to the comments. Guests are invited to attend allmeetings of the AWS C2 Committee on Thermal Spray to express their comments verbally. Procedures for appeal of anadverse decision concerning all such comments are
23、 provided in the Rules of Operation of the Technical ActivitiesCommittee. A copy of these Rules can be obtained from the American Welding Society, 8669 Doral Blvd., Suite 130,Doral, FL 33166.AWS C2.25/C2.25M:2012ivThis page is intentionally blank.AWS C2.25/C2.25M:2012vPersonnelAWS C2 Committee on Th
24、ermal SprayD.A. Lee, Chair Kennametal Stellite, IncorporatedA.P. Yanski, Vice Chair Praxair TAFAE.H. Abrams, Secretary American Welding SocietyD. Beneteau Centerline (Windsor) LtdM. Froning The Boeing CompanyL.F. Grimenstein Nation Coating Systems, IncorporatedJ.O. Hayden Hayden CorpR. McGrann Dept.
25、 of Mechanical EngineeringW.M. Medford INSPEC, IncorporatedB. Mosier Polymet CorpK. Sampath ConsultantC. Sauer NAVAIR In-Service Support CenterK.L. Sender Sulzer MetcoM.F. Smith Sandia National LaboratoriesS. Szapra Naval Surface Warfare CenterR.H. Unger Polymet CorpR.J. Wong Naval Surface Warfare C
26、enterAdvisors to the AWS C2 Committee on Thermal SprayD.A Berardinelli Platt Brothers 0.15 max total.eAll other elements typically analyzed for the wire: 0.03 max each; 0.10 max total.fVol-% Aluminum Assn. 1060 alloy with addition of 8 to 12 vol-% Al2O3powder, 810 diameter.gThe materials will produc
27、e an exothermic reaction during spraying.Table 3Chemical Composition Requirements for Cored Composite Thermal Spray WiresAWSUNSComposition, Weight PercentaClassificationNo.bCommon NameAlBCCrCuFeMnMoNiSiYOthersAmountCW-CoCrWW73136Cobalt Hardfacing0.901.30273131.01.031.5CoRemW4.06.0CW-CoMoCrW73138Coba
28、lt Hardfacing0.08171927303.23.8CoRemCW-CrFeBW74630Chromium-Iron-Boron79Rem34363.54.52.53.5CW-CuAlFeW61626Aluminum Bronze1316Rem35CW-CuSnSiW60658Silicon Bronze0.51.5Rem1.52.5Sn5.06.0CW-FeAlIron-Aluminum5Rem1CW-FeCr-1W41036410 Nickel 0.061113Rem1.00.400.704.05.01.0Molybdenum SSCW-FeCr-2W41039410 Nicke
29、l SS0.061214Rem1.03.04.0CW-FeCr-3W42040420 SS0.200.401214Rem1.01.0CW-FeCr-4W43070430 SS0.600.801618Rem1.00.751.0CW-FeCrC-1W74532Hardfacing Alloy4.05.01821Rem2.52.02.5CW-FeCrC-2W74535Hardfacing Alloy1.52.02428Rem2.52.02.04.02.5CW-FeCrNiBW89640Iron-Chromium-2.53.530322.53.5Rem3.54.52931Nickel-BoronCW-
30、FeMnAlW79840Iron-Manganese-45Rem6812AluminumCW-FeVWCW77540Tungsten Vanadium 1.03.54.5Rem1.51.01.02.0W5.07.0CarbideV1517CW-FeWCW77640Tungsten Carbide2.03.0Rem1.0W5660CW-FeCrBW46440Metamorphic Alloy4.30.232Rem1.82.1CW-FeCrNiBW46540Metamorphic Alloy2.50.2252.2Rem1.254.21.01.5CW-FeCrNiMoBW46640Metamorph
31、ic Alloy3.00.2252.7Rem1.53.58.02.2CW-NiAlNickel-Aluminum1727RemTotal1.0CW-NiAlMoW89342Nickel-Aluminum-4.07.04.06.5RemMolybdenumCW-NiCrAlW89341Nickel-Chrome-4.57.515.521.5RemTotal 6AluminumCW-NiCrAlYW89343Nickel-Chromium-9112123Rem0.51.5Aluminum-YttriumCW-NiCrFeW87740Nickel-Chromium-Iron171918202.53.
32、5RemTi0.51.5Ta4.55.5CW-NiCrMoW86142Nickel-Chromium-0.10202358.010.0RemNb3.24.2MolybdenumCW-NiCrSiBW89740Self-Fluxing Alloy2.53.00.51.012181.03.50.5Rem3.55.5CW-NiFeAlW89240Nickel-Iron-Aluminum1416351723RemaSingle values shown are maximum percentages. Rem = remainder.bSAE/ASTM Unified Numbering System
33、 for Metals and Alloys.AWS C2.25/C2.25M:20126AWS C2.25/C2.25M:20127Table 4Chemical Composition Requirements for Thermal Spray Ceramic RodsAWSComposition, Weight PercentaClassificationCommon NameAl2O3CaOCr2O3SiO2Fe2O3TiO2NaO2ZrO2MgOY2 O3OthersAmountCR-Cr2O3-1Chrome Oxide2.02.40.60.7Rem11130.30.73.53.
34、7CR-Cr2O3-2Chrome Oxide2.83.61.11.5Rem7.98.90.60.90.10.20.10.22.73.1CR-Cr2O3-3Chrome Oxide3.34.10.10.2Rem5.26.80.20.30.20.40.10.2CR-Al2O3-1Aluminum OxideRem0.10.20.70.90.030.070.010.20.40.30.4CR-Al2O3-2Aluminum OxideRem0.030.040.090.030.060.01CR-Al2O3-3Aluminum OxideRem0.10.20.100.020.030.030.01CR-A
35、l2O3-4Aluminum OxideRem0.100.71.10.030.030.100.01CR-Al2O3-5Alumina TitaniaRem0.10.30.60.80.40.63.03.20.040.10.20.40.5CR-Al2O3-6Alumina TitaniaRem0.10.30.40.60.20.412160.10.30.20.4CR-Al2O3-7Alumina TitaniaRem0.10.30.40.60.20.439430.10.30.20.4CR-Al2O3-8SpinelRem0.30.41.61.80.10.30.040.100.013233CR-ZrO
36、2-1Zirconium Oxide0.60.83.33.70.20.40.40.40.50.02Rem0.06Hf0.02CR-ZrO2-2Zirconium Oxide2.02.63.84.42.73.20.080.30.50.02Rem0.07Hf0.02CR-ZrO2-3Zirconium Oxide0.090.130.030.30.50.040.10.20.04Rem0.027.68.3Hf0.02CR-ZrO2-4Magnesium Zirconate0.20.30.30.40.080.20.3Rem2122Hf0.02CR-ZrO2-5Zirconium Silicate0.81
37、.10.81.037420.090.10.20.07Rem0.30.5Hf0.02aSingle values are maximum percentages. Rem = remainder.AWS C2.25/C2.25M:20128Figure 1Thermal Spray Feedstock Classification System Format5.2 The only testing requirement implicit in this “certification” is that the manufacturer has actually conducted the tes
38、tsrequired by the specification on material that is representative of that being shipped and that material met therequirements of the specification. Representative material, in this case, is material from any production run of thatclassification using the same formulation. “Certification” is not con
39、strued to mean that tests of any kind were necessarilyconducted on samples of the specific material shipped. Tests on such material may or may not have been conducted. Thebasis for the “certification” required by the specification is the classification test of “representative material” cited above,a
40、nd the “Manufacturers Quality Assurance Program.”5.3 For the purpose of determining conformance with this specification, an observed or calculated value shall be roundedto the nearest unit in the right-hand place figures used in expressing the limiting values for quantities in accordance withthe rou
41、nd-off method given in ASTM E29, Standard practice for Using Significant Digits in Test Data to DetermineConformance with this Specification.6. Test Methods and Retest6.1 Chemical Analysis6.1.1 The chemical compositions of ferrous and nonferrous solid and composite wire and ceramic rod feedstock are
42、defined in Tables 1, 2, 3, and 4. The chemical composition shall be determined by emission spectrochemical analysis,inductively coupled plasma spectroscopy, and wet chemical analysis, singly or in combination, in accordance with oneor more of the following standards, or as agreed to by the purchaser
43、 and supplier:(1) ASTM E34, Test Method for Chemical Analysis of Aluminum and Aluminum Alloys (referee)(2) ASTM E227, Standard Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloysby the Point-to-Plane Technique(3) ASTM E354, Test Method for Chemical Analysis of High-Tem
44、perature, Electrical, Magnetic, and Other SimilarIron, Nickel, and Cobalt Alloys(4) ASTM E363, Methods for Chemical Analysis of Chromium and FerrochromiumAWS C2.25/C2.25M:20129(5) ASTM E536, Test Method for Chemical Analysis of Zinc and Zinc Alloys(6) ASTM E926, Test Method for Preparing Refuse-Deri
45、ved Fuel (RDF) Samples for Analysis of Metals(7) ASTM STP 747, New Analytical Techniques for Trace Constituents of Metallic and Metal Bearing Ores(8) ASTM STP 944, Chemical Analysis of Metals6.1.2 The sampling for chemical analysis shall be for:(1) Solid Wires. A representative sample obtained from
46、each heat during pouring or subsequent processing.(2) Cored Composite Wires and Ceramic Rods. A representative sample obtained from a melt or a firing of arepresentative sample (melt button) of a lot of the product manufactured at the same time. The chemical composition canbe determined by other tha
47、n a melt button or as agreed by the purchaser and supplier.6.1.3 The sample shall be analyzed by accepted analytical methods. For elements not covered by the above listed testmethods, the referee test method per ASTM E34 shall be used or as otherwise agreed upon between the manufacturer andthe purch
48、aser.6.2 Retest6.2.1 If the results of any test fail to meet the requirement, that test shall be repeated twice. The results of both retestsshall meet the requirements. Samples for retest may be taken from the original sample. For chemical analysis, retest needbe only for those specific elements that failed to meet the test requirement. If the results of one or both retests fail to meetthe requirement, the material under test shall be considered as not meeting the requirements of this specification for thatclassificat
