Third Party Inspection for Ground Storage Tank-

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            Reference Documents- 1.     Design code 2.     Purchase order specification 3.     Purchaser's standards 4.     Approved drawings 5.     API 650 6.     API 620 7.     API 653 8.     BS 2654 Inspection Activities from start to finish-              Material Inspection            Fabrication Inspection            Plate Preparation            Shell Courses and Base Plates containing Welded Seams            Post Weld Heat Treatment of Hot Formed Components            Assembly Inspection             Painting and Coating              ...
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(CS)(LTCS-Impact Tested (ASME Material&Electrode Selection)

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(CS)(LTCS-Impact Tested) ASME Material&Electrode Selection



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Important point for Welding Inspector-(SE-1)

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1.Thickness Range for WPS-as per  ASME Sec-IX 2.For Welder Qualification Performance Test as per  ASME Sec-IX (Thickness Range)- 3.For Welder Qualification Performance Test as per  ASME Sec IX  (OD Range)- 4.Heat Input as per  ASME Sec IX QW-409.1(a) 5.For Base Metal as per  ASME Sec-IX P Number Check by Table QW-422 G Number Check by Table QW-422 6.For Filler Metal or Electrode as per  ASME Sec-IX F Number Check by Table QW-432 A Number Check by Table QW-442 Previous Topics- https://upendratiwari786.blogspot.com/2019/12/forging-definition.html https://upendratiwari786.blogspot.com/2019/12/casting-definition-and-defects.html https://upendratiwari786.blogspot.com/2019/12/common-defects-of-steel-forgings.html https://upendratiwari786.blogspot.com/2019/12/difference-between-codestandard-and.html https://upendratiwari786.blogspot.com/2019/12/raw-material-identification-rmi-mtc.html https://upendratiw...
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Third Party Inspection for Pressure Vessel –

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Definition- A  pressure vessel  is a container designed to hold gases or liquids at a  pressure  substantially different from the ambient  pressure . Design involves parameters such as maximum safe operating pressure  and temperature, safety factor,corrosion allowance and minimum design temperature (for brittle fracture). Reference Documents and Codes- Design code Purchase order specification Purchaser's standards Approved drawings ASME SEC VIII Div 1 or 2 ASME V ASME IX Note- ASME SEC VIII Div 1 for (15-3000) psi ASME SEC VIII Div 2  for (3000-10000) psi ASME SEC VIII Div 3  for more than 10000 psi 1. Division 1  is based on normal stress theory, 2. Division 2  is based on maximum distortion energy (Von Mises). Inspection Activities from start to finish- Material Inspection Fabrication Preparation for Welding Fit-Up Inspection Monitoring of Weld Conditions Back Gouging Inspection Visu...
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Radiography Inspection- Paragraph-136.4.5 When required by this Chapter (see Table 136.4), radiographic examination shall be performed in accordance with the requirements of Section V, Article 2, of the ASME Boiler and Pressure Vessel Code, except that the requirements of T-274 are to be used as a guide but not for the rejection of radiographs unless the geometrical unsharpness exceeds 0.07 in.  (2.0 mm). (A) Acceptance Standards.            Welds that are shown by radiography to have any of the following types of discontinuities are  unacceptable: (A.1) any type of crack or zone of incomplete fusion or penetration (A.2) any other elongated indication that has a length greater than (A.2.1) 1 ⁄ 4 in. (6.0 mm) for t up to 3 ⁄ 4 in. (19.0 mm), Inclusive (A.2.2) 1 ⁄ 3 t for t from 3 ⁄ 4 in. (19.0 mm) to 2 1 ⁄ 4 in. (57.0 mm), inclusive (A.2.3) 3 ⁄ 4 in. (19.0 mm) for t over 2 1 ⁄ 4 in. (57.0 mm) where t is the thickness of th...
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Third Party Inspection for Ground Storage Tank-

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ASME Code Key Words  shall -      mandatory rules may not- prohibition may can -recommendations or exemptions from prohibitions  should-    recommendations  Pressure Vessel Inspection as per ASME SEC VIII DIV.1 Subsection A:  UG – General Requirements Subsection B: Methods of Fabrication  UW – welded pressure vessels  UF – forged pressure vessels  UB – brazed pressure vessels  Subsection C: Classes of Material - Special Constructions  UCS - Carbon and Low Alloy Steel  UNF - Non ferrous Materials  UHA - High Alloy Steel  UCI - Cast Iron  UCL - Cladding and Lining  UCD - Cast Ductile Iron  UHT - Ferritic Steels with Heat Treatment  ULW - Layered Constructions  ULT - Low Temperature Service  UHX - Shell and Tube Heat Exchanger Mandatory and Nonmandatory Appendices Index Important clauses/points/paragraphes/tables are ...
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Important point for Welding Inspector-SE-2

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(Importants) ASME and National Board Stamps-

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