1、Standard WeldingProcedure Specification(SWPS) for Gas Tungsten ArcWelding withConsumable InsertRoot of Carbon Steel(M-1/P-1/S-1, Group 1or 2), 1/8 through 11/2 inch Thick,INMs-1, and ER70S-2,As-Welded or PWHTCondition,Primarily Pipe ApplicationsSite LicenseAWS B2.1-1-210:2001 (R2012)An American Nati
2、onal StandardAWS B2.1-1-210:2001 (R2012)An American National StandardApproved by the American National Standards Institute October 31, 2001Reaffirmed: March 29, 2012 Standard Welding Procedure Specification (SWPS) forGas Tungsten Arc Welding with Consumable Insert Rootof Carbon Steel (M-1/P-1/S-1, G
3、roup 1 or 2),1/8 through 11/2 inch Thick, INMs-1, and ER70S-2, As-Welded or PWHT Condition,Primarily Pipe Applications3rd EditionSupersedes AWS B2.1-1-210:2000Prepared by the American Welding Society (AWS) B2 Committee on Procedure and Performance QualificationUnder the Direction of the AWS Technica
4、l Activities CommitteeApproved by the AWS Board of DirectorsAbstractThis standard contains the essential welding variables for carbon steel in the thickness range of 1/8 through 11/2 inch,using manual gas tungsten arc welding with consumable insert root. It cites the base metals and operating condit
5、ions nec-essary to make the weldment, the filler metal specifications, and the allowable joint designs for groove welds. This SWPSwas developed primarily for pipe applications.International Standard Book Number: 0-87171-691-7American Welding Society550 N.W. LeJeune Road, Miami, FL 33126 2002 by Amer
6、ican Welding SocietyAll rights reservedPrinted in the United States of AmericaReaffirmed: March 29, 2012 AWS B2.1-1-210:2001 (R2012)iiAWS B2.1-1-210:2001 (R2012)Statement on the Use of American Welding Society StandardsAll standards (codes, specifications, recommended practices, methods, classificat
7、ions, and guides) of the AmericanWelding Society (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 inclu
8、ded in federal or state laws and regulations, 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 bec
9、ome a part of those laws andregulations. In 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 betwe
10、en the contracting parties.AWS American National Standards are developed through a consensus standards development process that bringstogether volunteers representing varied viewpoints and interests to achieve consensus. While the AWS administers theprocess and establishes rules to promote fairness
11、in the development of consensus, it does not independently test, evalu-ate, or verify the accuracy of any information or the soundness of any judgments contained in its standards.AWS disclaims liability for any injury to persons or to property, or other damages of any nature whatsoever, whether spe-
12、cial, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance on thisstandard. AWS also makes no guarantee or warranty as to the accuracy or completeness of any information published herein.In issuing and making this standard available, AW
13、S is neither undertaking to render professional or other services for oron behalf of any person or entity, nor is AWS undertaking to perform any duty owed by any person or entity to someoneelse. Anyone using these documents should rely on his or her own independent judgment or, as appropriate, seek
14、theadvice of a competent professional in determining the exercise of reasonable care in any given circumstances. It isassumed that the use of this standard and its provisions is entrusted to appropriately qualified and competent personnel.This standard may be superseded by the issuance of new editio
15、ns. This standard may also be corrected through publica-tion of amendments or errata. It may also be supplemented by publication of addenda. Information on the latest editionsof AWS standards including amendments, errata, and addenda are posted on the AWS web page (www.aws.org). Usersshould ensure t
16、hat they have the latest edition, amendments, errata, and addenda.Publication of this standard does not authorize infringement of any patent or trade name. Users of this standard accept anyand all liabilities for infringement of any patent or trade name items. AWS disclaims liability for the infring
17、ement of anypatent or product trade name resulting from the use of this standard.The AWS does not monitor, police, or enforce compliance with this standard, nor does it have the power to do so.On occasion, text, tables, or figures are printed incorrectly, constituting errata. Such errata, when disco
18、vered, are postedon the AWS web page (www.aws.org).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 should be addressed to the American Welding Society,Attention:
19、 Managing Director, Technical Services Division, 550 N.W. LeJeune Road, Miami, FL 33126 (see Annex A).With regard to technical inquiries made concerning AWS standards, oral opinions on AWS standards may be rendered.These opinions are offered solely as a convenience to users of this standard, and the
20、y 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 unofficial opinions or interpretations ofAWS. In addition, oral opin
21、ions 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 B2 Committee on Procedure and Performance Qualification.It must be reviewed every five years, and if not revised, it must be either reaffirmed or withdr
22、awn. Comments (recom-mendations, additions, or deletions) and any pertinent data that may be of use in improving this standard are required andshould be addressed to AWS Headquarters. Such comments will receive careful consideration by the AWS B2Committee on Procedure and Performance Qualification a
23、nd the author of the comments will be informed of theCommittees response to the comments. Guests are invited to attend all meetings of the AWS B2 Committee onProcedure and Performance Qualification to express their comments verbally. Procedures for appeal of an adverse deci-sion concerning all such
24、comments are provided in the Rules of Operation of the Technical Activities Committee. A copyof these Rules can be obtained from the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.iiiAWS B2.1-1-210:2001 (R2012)Personnel (Reaffirmation)AWS B2 Committee on Procedure and Performance Q
25、ualificationJ. J. Fluckiger, Chair Idaho National LaboratoryJ. L. Cooley, Vice Chair J. C. nonmetallic or nonfusing metal retainers are not permittedPOSITIONSPermitted Positions: AllVertical Progression: UphillPREHEAT AND INTERPASS TEMPERATURESPreheat Temperature:250F MinimumInterpass Temperature:25
26、0F Minimum, 500F MaximumPreheat Maintenance: Continuous or special heating not requiredGASTorch Shielding Gas: Welding Grade Argon or AWS A5.32 (ISO 14175)-I1-Ar-100Flow Rate: 10 to 25 ft3/hBacking/Root Shielding Gas: Welding Grade Argon or AWS A5.32 (ISO 14175)-I1-Ar-100. Gas shall remain inplace u
27、ntil the joint is completed, or at least 3/16 in. of weld metal has been deposited.When introducing gas to initiate the purge, it is necessary to have at least a 6-volumechange of atmosphere within the purge zone prior to welding. As an alternative, theoxygen content of the purge zone shall be 2% or
28、 less, as measured with an OxygenAnalyzer, prior to welding.Flow Rate: A typical flow rate of 5 to 15 ft3/h may be varied depending on component configurationAWS B2.1-1-210:2001 (R2012)Page 2 of 16Permission to reproduce for intra-company use only is granted by the American Welding Society1M. P. and
29、 S numbers for base metal and F and A numbers for filler metal and weld metal respectively, are as detailed in AWSB2.1/B2.1M and ASME Boiler and Pressure Vessel Code, Section IX.2Preheat and interpass temperatures must be sufficient to prevent crack formation. Temperatures above the minimum shown ma
30、y berequired for highly restrained welds or by the fabrication document(s).AWS B2.1-1-210:2001 (R2012)Page 3 of 16Standard Welding Procedure Specification (SWPS)Torch Gas Nozzle Size: 1/4 to 3/4 in, inside diameterTralling Shield: Not requiredTUNGSTEN ELECTRODESType: AWS A5.12M/A5.12 (ISO 6848 MOD)
31、or ASME SFA 5.12, EWTh-2, EWCe-2, orEWLa-1.5Size: 1/16 through 1/8 in. diameter sharpened to a pointELECTRICAL CHARACTERISTICSGROOVE WELDSFiller Metal CurrentLayer Classification Size (in.) AmperesaPolarityRoot INMs-1 1/16, 1/18, or 5/32 65120 DCEN (Straight)Fill ER70S-2 /1/16 60100 DCEN (Straight)F
32、ill ER70S-2 3/32 80140 DCEN (Straight)Fill ER70S-2 1/8 100160 DCEN (Straight)aValues not to exceed capacity of lungsten electrodes.Pulsing Current: Not permittedPOSTWELD HEAT TREATMENT (PWHT)Postweld Heat Treatment: Welds may either be as-welded or postweld heat treated at 1100 to 1200F or asrequire
33、d by the fabrication document(s). If heat treated, the heat treatment time shallbe 1 hour per inch of thickness (15 minutes minimum) unless otherwise noted in thefabrication document(s).TECHNIQUEWeave or Stringer Bead: EitherPeening: Not permittedInitial Cleaning: Chemical or mechanical; Joint shall
34、 be dry prior to weldingInterpass Cleaning: Mechanical onlyBackgouging: Not required. Mechanical or thermal if used.Single or Multiple Passes: MultipleMaximum Bead Thickness: 1/4 in.Repair: Defects in welds shall be removed by mechanical or thermal methods. The repaircavity may differ in contour and
35、 dimension from a normal joint preparation and maypresent different restraint conditions. Repair of base metal defects shall be in accor-dance with the requirements of the fabrication document(s).COMPANY NAME_In the name of the Company stated above, I accept full responsibility for the application o
36、f this SWPS for use with:_ Dated _Fabrication Document(s): (such as Code, Specification, or Contract Document)DATE _ APPROVED BY _ TITLE _Permission to reproduce for intra-company use only is granted by the American Welding SocietyAWS B2.1-1-210:2001 (R2012)Page 4 of 16Permission to reproduce for in
37、tra-company use only is granted by the American Welding SocietyfRraStandard Welding Procedure Specification (SWPS)fRaFigure 1Allowable Joint DesignsGROOVE WELDS: For pipe and tubular products, see Joints 1 through 13. In addition, joints having groove designs resulting from end preparations conformi
38、ng with ASMEB16.25, Bull Welding Ends, are also allowable for application with this SWPS.JOINT 1JOINT 2AWS B2.1-1-210:2001 (R2012)Page 5 of 16Permission to reproduce for intra-company use only is granted by the American Welding SocietyRffra bJOINT 3Standard Welding Procedure Specification (SWPS)Figu
39、re 1 (Continued)Allowable Joint DesignsfRraJOINT 4AWS B2.1-1-210:2001 (R2012)Page 6 of 16Permission to reproduce for intra-company use only is granted by the American Welding SocietyfRaJOINT 5Rffra bFigure 1 (Continued)Allowable Joint DesignsJOINT 6Standard Welding Procedure Specification (SWPS)AWS
40、B2.1-1-210:2001 (R2012)Page 7 of 16Permission to reproduce for intra-company use only is granted by the American Welding SocietyStandard Welding Procedure Specification (SWPS)fRraJOINT 7Figure 1 (Continued)Allowable Joint DesignsfRaJOINT 8AWS B2.1-1-210:2001 (R2012)Page 8 of 16Permission to reproduc
41、e for intra-company use only is granted by the American Welding SocietyStandard Welding Procedure Specification (SWPS)Rffra bJOINT 9fRaFigure 1 (Continued)Allowable Joint DesignsJOINT 10AWS B2.1-1-210:2001 (R2012)Page 9 of 16Permission to reproduce for intra-company use only is granted by the Americ
42、an Welding SocietyStandard Welding Procedure Specification (SWPS)fRraJOINT 11Figure 1 (Continued)Allowable Joint DesignsfRaJOINT 12AWS B2.1-1-210:2001 (R2012)Page 10 of 16Permission to reproduce for intra-company use only is granted by the American Welding SocietyRffra bJOINT 13Figure 1 (Continued)A
43、llowable Joint DesignsMetric Conversionsin. mm F C n3/h L/min1/32 0.8 50 10 5 2.41/16 1.6 500 260 10 5.03/32 2.4 1100 595 15 7.11/8 3.2 1200 650 25 11.85/32 4.03/16 4.81/4 6.43/4 19.01 25.411/2 38.0Standard Welding Procedure Specification (SWPS)AWS B2.1-1-210:2001 (R2012)Page 11 of 16Annex A (Inform
44、ative)Guidelines for the Preparation of Technical InquiriesThis annex is not part of AWS B2.1-1-210:2001 (R2012), Standard Welding Procedure Specification (SWPS) for GasTungsten Arc Welding with Consumable Insert Root of Carbon Steel (M-1/P-1/S-1, Group 1 or 2), 1/8 through 1-1/2inch Thick, INMs-1 a
45、nd ER70S-2, As-Welded or PWHT Condition, Primarily Pipe Applications, but is included for informational purposes only.Permission to reproduce for intra-company use only is granted by the American Welding SocietyA1. IntroductionThe American Welding Society (AWS) Board of Directorshas adopted a policy
46、 whereby all official interpretations ofAWS standards are handled in a formal manner. Under this policy, all interpretations are made by the committeethat is responsible for the standard. Official communica-tion concerning an interpretation is directed through the AWS staff member who works with tha
47、t committee.The policy requires that all requests for an interpretation be submitted in writing. Such requests will be handled asexpeditiously as possible, but due to the complexity of the work and the procedures that must be followed, someinterpretations may require considerable time.A2. ProcedureA
48、ll inquiries shall be directed to:Managing DirectorTechnical Services DivisionAmerican Welding Society550 N.W. LeJeune RoadMiami, FL 33126All inquiries shall contain the name, address, and affilia-tion of the inquirer, and they shall provide enough infor-mation for the committee to understand the po
49、int ofconcern in the inquiry. When the point is not clearlydefined, the inquiry will be returned for clarification. Forefficient handling, all inquiries should be typewritten andin the format specified below.A2.1 Scope. Each inquiry shall address one singleprovision of the standard unless the point of the inquiryinvolves
