Annex A Alternative Acceptance Standards for Girth Welds – CWI Part C

Read Carefully and Take Test Annex A: Alternative Acceptance Standards for Girth Welds A.1 General The acceptance criteria for welds in Section 9 are based on the length of defects and are typically conservative. Annex A offers an alternative way to determine acceptance criteria by means of fracture mechanics analysis and fitness for purpose considerations … Read more

Section 13 Automatic Welding Without Filler Metal Additions

Read Carefully and Take a Test Section 13: Automatic Welding Without Filler Metal Additions 13.1 Acceptable Processes Section 1 3 addresses the welding of pipe using automatic welding without filler metal additions. It applies to only one welding process: the fash butt welding process. 13.2 Procedure Qualification Subsection 1 3.2 requires at least two test … Read more

Section 12 Mechanized Welding with Filler Metal Additions

Read Carefully and Take a Test Section 12: Mechanized Welding with Filler Metal Additions Section 12 provides the rules for qualifying welding procedures and personnel for mechanized welding with filler metal additions. It further addresses production welding along with inspection and NDT of production welds.. 12.1 Acceptable Processes Mechanized welding shall be performed using one … Read more

Section 11 Procedures for Nondestructive Testing (NDT)

Read Carefully and Take a Test Section 11 Procedures for Nondestructive Testing (NDT) Written procedures are required for all NDT procedures. 1 1 .1 Radiographic Test Methods Paragraph 11 .1 .1 addresses requirements for radiographic examination of welds using flam or other media. It describes the flam characteristics (appropriate density, clarity, and contrast) necessary to … Read more

Section 10 Repair and Removal of Weld Defects- CWI Part C

Read Carefully and Take a Test Section 1 0: Repair and Removal of Weld Defects 0.1 General Paragraph 1 0.1 states that weld defects may be identified at any time. 1 0.2 Authorization for Repair Paragraph 1 0.2.1 states that company authorization is required for crack repairs, back weld repairs, and double repairs. Company authorization … Read more

Section 9 Acceptance Standards for NDT – CWI Part C

Read Carefully and Take a Test Section 9: Acceptance Standards for NDT 9.1 General This section presents acceptance standards for imperfections found by radiographic, magnetic particle, liquid penetrant, ultrasonic, and visual testing. NDT shall not be used to select welds that are to be destructively tested for welder qualification. 9.2 Rights of Rejection The acceptance … Read more

Section 8 Inspection and Testing of Production Welds- CWI Part C

Read Carefully and Take a Test Section 8: Inspection and Testing of Production Welds 8.1 Rights of Inspection The company shall determine whether inspection will be non-destructive or destructive, whether the inspection will occur during or after welding, and the frequency of inspections. 8.2 Methods of Inspection NDT will usually be radiographic testing but may … Read more

Section 7 Design and Preparation of a Joint for Production Welding – CWI Part C

Read Carefully and Take a Test Section 7: Design and Preparation of a Joint for Production Welding The purpose of Section 7 is to establish requirements for production welding. 7.1 General Production welding shall be performed only by qualified welders using qualified welding procedures. This paragraph identifies the cleanliness requirements for the surfaces to be … Read more

Section 6 Qualification of Welders – CWI Part C

Read Carefully and Take a Test Section 6: Qualification of Welders 6.1 General The purpose of welder qualification is to prove the welder’s ability to make sound welds using qualified procedures. Welders must qualify by testing before they perform any production welding. A welder who satisfactorily completes a welding procedure qualification test is also qualified … Read more

Section 5 Qualification of Welding Procedures with Filler Metal Additions – CWI Part C

Read Carefully and Take a Test Section 5 Qualification of Welding Procedures with Filler Metal Additions 5.1 Procedure Qualification AWS A3.0 defines a welding procedure as “the detailed methods and practices involved in the production of a weldment.” These methods and practices are communicated to the welder in the form of a document referred to … Read more