Click on below Like and G+1 buttons! − Welding Inspection Tools − Sample Visual Examination Procedure − Inspection Documentation − Visual Inspection Acceptance Criteria NDE Personnel Qualification Requirements − Volumetric Examination Methods All required post weld heat treatment shall be complete before final non destructive testing. 1 & B31.1 Refs. Hi Sir. ), inclusive, 1.5 mm (1/16 in.) Cracks in tubes shall not be repaired and shall be considered cause for rejection. ... revision adds rules addressing the practice allowing for retention of the radiographic images into digital format. weld defects acceptance criteria for ASME IX. So it possible a weld seam radiographic testing to be rejected by the criteria in ASME Code Section IX but being acceptable based on the UW-51 on the ASME Section VIII Div 1. Apart from the above conditions, Mandatory Appendix 4 also contains some tables, charts, and figures as a reference for acceptance/rejection criteria. (2) The reduction in thickness shall not exceed 1/32. (1 mm). Acceptance criteria for Rounded Indications: The maximum acceptable dimension for rounded indications shall be 20% of T or 3 mm (1/8 in. WELD REINFORCEMENT TABLE ASME B31.3 Thickness of Base Material Thickness of Reinforcement The RT acceptance criteria that have been addressed on QW- 191.1.2.2 refers to the welder or welding operator performance qualification. A rounded indication may be of circular or elliptical shape. are met. T/3 for T greater than or equal to 19 mm (3/4 in.) (0.8 mm). The ASME code is the American Society of Mechanical Engineers (ASME) standard that regulates the design, development and construction of boilers and pressure vessels. (Refer: Mandatory Appendix 12 (Page 435) of ASME BPVC Section VIII Div 1, 2017 Edition.). More than 300 Articles! I am just about to start my welding career and this insight is quite useful. − Acceptance Criteria − Documentation Visual Examination (VT) − Section V Article 9 − Section I, VIII, Div. • It is divided in two parts, part QW gives requirements for welding and part QB contains requirements for brazing. QW-194 Visual Examination -- Performance. The ASME Section IX Training Course is 2 days video training course and available online and the student that successfully pass the exam, receive I4I academy certificate with 16 hours training credit. I am very confused regarding acceptance criteria. The reduction in thickness shall not exceed 1mm (1/32 in.) The acceptance criteria shall be as specified in clause 7. material of the adjoining surfaces below the minimum. is acceptable provided all of the following conditions. This stringency seems reasonable because with this acceptance criteria we are testing the skill of our welder and not actual welding work. Required fields are marked *. Click here for instructions on how to enable JavaScript in your browser. Thank-You for your feedback.. Dear sir, Please give a download option for video & PDF, Wow! (b) Relevant rounded indications greater than 5 mm (3/16 in.) By Joseph Davis. What is the main difference between ASME B31.3 and ASME BPVC SECTION VIII DIV 1? shall be considered relevant. ASME IX:07. I am a Mechanical Engineer with more than ten years of work experience in the field of welding and NDT. The length of elongated inclusion depends on the test piece thickness,  for instance, any elongated slag inclusion will be unacceptable if the length is more than 1/8 inch when the thickness of the specimen is between 0 to 3/8 inch. (where ‘L’ is the length of the longest imperfection in the group). ASME Section III permits 1/32 in. Based on the requirements of QW-191.1.2.2 in ASME Section IX any crack and incomplete fusion is unacceptable. Attachment 4, Qualification Test Acceptance Criteria Page 1 of 6 Page 1 of 6 QUALIFICATION TEST ACCEPTANCE CRITERIA A. Visually inspect the welded coupon in accordance with the weld procedure used to make the test. Module 7 – Summary 7-75 Weld Procedure Qualification Welder Qualification – Test Requirements Radiographic acceptance criteria Linear Indications Any type of crack, incomplete fusion, or incomplete penetration Elongated slag with a length greater than 1/8-in.
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