API Standard 1104

1 API Weldi TWENTY-FIThis standahigh-qualityusing approequipment. This standaand socket used in the crude petrodioxide, nitrdistribution and in-servishielded metungsten ararc weldingflash butt-wprocesses uor or bThis standathe proper aqualified tecequipment. magnetic paas well as thproduction wradiographiultrasonic, aWhile this stissues that mrequirementparticular acengineering standards, restablished to establish Stanng of PRST EDITIONrd presents mwelds througoved welding p rd covers the welds in carbocompression,leum, petroleurogen, and whsystems.

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3 Otheering tests andces may providering judgmentd 11s and RR 2013 | 118 PAe production oualified weldeaterials, and welding of buttoy steel pipingd transmissionfuel gases, cae, covers weldnew constructay be done by d arc welding, elding, flux-coretylene weldinbination of theatic, mechanizombination of ted by position n and roll weldmethods to ehrough the usethods and or radiographicd ultrasonic teo be applied toor inspected bpenetrant, may not addreuidance or ohibitive to a sed upon sounder industry d analyses, or de useful refert. 04 RelatedAGES | $ ers , fillet, g n of rbon ing on tion a gas ed ng, or ese zed, these or roll ing.

4 Ensure e of c, esting, o by ess all d ence For Onl Pho Fax APId Facilit0 | PRODUCT Nr ordering inforline: : 1-800-8(Toll-free(+1) 303(Local anx: (+1) 303I members receties NO. D110421 rmation: 54-7179 e in the an3-397-7056 nd Internationa3-397-2740 eive a 30% disd Canada) al) scount where aapplicable. ContentsPage1 Scope .. 12 Normative References.. 13 Terms, Definitions, Acronyms, and Abbreviations .. Terms and Definitions .. Acronyms and Abbreviations .. 54 Specifications .. Equipment .. Materials.

5 85 Qualification of Welding Procedures with Filler Metal Additions .. Procedure Qualification .. Record.. Welding Procedure Specification .. Essential Variables .. Welding of Test Joints Butt Welds .. Testing of Welded Joints Butt Welds .. Welding of Test Joints Fillet Welds.. Testing of Welded Joints Fillet Welds .. 236 Qualification of Welders.. General .. Single Qualification .. Multiple Qualification .. Visual Examination .. Destructive Testing.

6 Nondestructive Testing (NDT) Butt Welds Only .. Retesting.. Records.. 307 Design and Preparation of a Joint for Production Welding .. General .. Alignment .. Use of Lineup Clamp for Butt Welds .. Bevel .. Weather Conditions.. Clearance .. Cleaning Between Beads .. Position Welding .. Roll Welding .. Identification of Welds .. Preheat and PWHT .. 328 Inspection and Testing of Production Welds.. Rights of Inspection .. Methods of Inspection.

7 Qualification of Inspection Personnel.. Certification of NDT Personnel .. 339 Acceptance Standards for NDT .. General .. Rights of Rejection .. Radiographic Testing .. Magnetic Particle Testing .. Liquid Penetrant Testing.. Ultrasonic Testing .. Visual Acceptance Standards for Undercutting.. 4510 Repair and Removal of Weld Defects .. General .. Authorization for Repair .. Repair Procedure.. Repair Welder Qualification .. Supervision .. Acceptance Criteria.

8 5411 Procedures for NDT.. Radiographic Test Methods .. Magnetic Particle Test Method.. Liquid Penetrant Test Method .. Ultrasonic Test Methods .. 6012 Mechanized Welding with Filler Metal Additions.. Acceptable Processes .. Procedure Qualification .. Record.. Welding Procedure Specification .. Essential Variables .. Qualification of Welding Equipment and Operators .. Records of Qualified Operators .. Inspection and Testing of Production Welds .. Acceptance Standards for NDT.

9 Repair and Removal of Defects .. Radiographic Testing .. Ultrasonic Testing .. 7113 Automatic Welding Without Filler Metal Additions .. Acceptable Processes .. Procedure Qualification .. Record.. Welding Procedure Specification .. Essential Variables .. Qualification of Equipment and Operators.. Records of Qualified Operators .. Quality Assurance of Production Welds.. Acceptance Standards for NDT .. Repair and Removal of Defects .. Radiographic Procedure.. 79 Annex A (normative) Alternative Acceptance Standards for Girth Welds.

10 80 Annex B (normative) In-service Welding.. 102 Annex C (normative) Requests for Interpretation and Request for Revision to the Document .. 117 Figures1 Sample Welding Procedure Specification Form .. 102 Sample Coupon Test Report .. 113 Location of Test Butt Weld Specimens for Procedure Qualification Test.. 174 Tension Test Specimen .. 195 Nick Break Test Specimen .. 206 Dimensioning of Imperfections in Exposed Weld Surfaces.. 217 Root and Face Bend Test Specimen: Wall Thicknesses Less Than or Equal to in. ( mm) .. 218 Jig for Guided-bend Tests.