Acceptance Criteria for Weld Defects
In this article, the weld defect acceptance/rejection criteria are given for the following tests/NDT; 1. Acceptance criteria for Visual Inspection
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Author: Sandeep Anand
Summary of ASME BPVC Section IX – Part 3
In part – 1 of this article, we had discussed the general requirements as mentioned in part QG of ASME
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Summary of ASME BPVC Section IX – Part 2
In part – 1 of this article, we had discussed the general requirements as mentioned in part QG of ASME
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Summary of ASME BPVC Section IX – Part 1
ASME Boiler and Pressure Vessel Code (BPVC), Section IX contains qualification standard for the following; Welding, Brazing, and Fusing procedures
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Magnetic Particle Testing
Magnetic Particle Testing (MT) (also known as magnetic particle inspection – MPI) is a non destructive test (NDT) method, used
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(OFW) Oxy-Fuel Welding (Gas Welding/Oxy-Acetylene Welding)
Oxy-fuel welding (OFW) is also known as Gas welding or Oxy-fuel gas welding. The term ‘Oxy-fuel’ is used to denote
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Thickness range for welder qualification and procedure qualification (ASME Section IX)
Thickness range for performance qualification (welder qualification test): ASME BPVC Section IX has provided guidelines for the thickness range up
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P Number, F Number and A Number in welding (ASME Section IX)
ASME Boiler and pressure vessel code (BPVC) has assigned certain numbers to base metals (to be welded) as well as
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Preheating – How, When and Why
Heating the base metal to a specific desired temperature before welding is called as preheating. The temperature at which the
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(SAW) Submerged Arc Welding
Submerged Arc Welding (SAW) is an arc welding process in which arc is generated between a bare electrode and the
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(FCAW) Flux Cored Arc Welding
Flux cored arc welding (FCAW) is a welding process that uses the heat produced by an arc generated between a
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(UT) Ultrasonic Test Basics
High frequency sound waves (frequency > 20000 HZ) also known as ultrasonic waves are introduced in a test object through
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Angle Probe Calculation for UT
SELECTION OF PROBE ANGLE: There are three methods for selecting a probe angle, these are: Based on groove angle:
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Visual Inspection of Weld Joints
Visual examination of weld joint is an important activity, carried out to check the integrity and soundness of the weldment.
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TIG Welding or Gas Tungsten Arc Welding (GTAW)
Gas Tungsten Arc Welding (GTAW) is also known as Tungsten Inert Gas Welding (TIG Welding). It is an arc welding
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How to write a Welding Procedure Specification (WPS)
A welding procedure specification (WPS) is a written document providing direction to the welder (or welding operator). It contains all
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ASME Codes and Standards – A summary
Sections of ASME Boiler and Pressure vessel Codes (BPVC) The following list includes some of the most widely used Boiler
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Welding Defects
Any discontinuity (or irregularity) in the weld metal, which exceeds the applicable code limit, is termed as a WELD DEFECT
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Development Of Radiography Film
About radiography films: Radiography films are primarily made up of two things; 1. Base 2. Emulsion Base: Base is a
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Radiography Test (RT)
Radiography testing (RT) is one of the most widely used non-destructive test (NDT) methods. With the help of this method,
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Preparatory Questions (Set – 7)
1. Which of the following butt weld preparations is generally most susceptible to lack of side wall fusion during MMA
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Preparatory Questions (Set – 6)
1. Which of the following processes joins metals plastically? Friction welding Resistance welding Plasma welding None of the above 2.
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Preparatory Questions (Set – 5)
1. Which of the following NDT methods can only detect surface breaking defects? MPI DPI UT RT 2.
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Preparatory Questions (Set – 4)
1. Which of the following does not require baking; E 6010 E 7018 Both a & b None
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Preparatory Questions (Set – 3)
1. Overlap in welds could be influenced by: Welding process Welding position Poor welding technique All the above 2. In
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Preparatory Questions (Set – 2)
1. Stress relieving is not helpful in which of the following cases? Softening the steel Lowering the peak residual stress
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