How to select welding electrodes
Selection of right welding electrode is a quite challenging decision because we need to consider many factors while choosing an
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How To Make Weld Map, Shop Weld Plan, WPS, PQR & WPQ for A Static Pressure Vessel (Part-3)
Scope: In part-2, of this article we had discussed the sequence to be used for qualification of procedure (PQR) which
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Summary of ASME BPVC Section VIII Div 1 (Part 4)
In Part-3 of this article the Subsection A was covered from UG-36 up to UG-79, to read the Part-3 of
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Globe Valves – What is a Valve (Part – 2)
In the Valves Part-1, you learned, What is a valve, its history and its categorization, to read that article please
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How To Make Weld Map, Shop Weld Plan, WPS, PQR & WPQ for A Static Pressure Vessel (Part-2)
Scope: In part-1 (Click here to read), of this article we had discussed about preparation and approval of weld map,
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Summary of ASME BPVC Section VIII Div 1 (Part 3)
In Part-2 of this article, the Subsection A was covered from UG-17 up to UG-35 Design and to read the
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What is a Valve (Part – 1)
Introduction: Valves are mechanical devices, specifically designed to direct, start, stop, mix, or regulate the flow, pressure and temperature of
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Summary of ASME BPVC Section VIII Div 1 (Part 2)
In Part-1 of this article we had discussed about what ASME SEC VIII DIV I deals, code cases, scope, its
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How To Make Weld Map, Shop Weld Plan, WPS, PQR & WPQ for A Static Pressure Vessel (Part-1)
Scope: This article will deal with step by step guide for preparation of Weld Map, Shop Weld Plan, WPS, PQR
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Summary of ASME BPVC Section VIII Div 1 (Part 1)
ASME SEC VIII DIV I deals with the rules for construction of pressure vessels. This code is a part of
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How to calculate heat input
Heat input is a critical parameter for arc welding processes. The Heat input shall be controlled to ensure sound weld
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Plasma Arc Welding (PAW)
Plasma arc welding (PAW) is an arc welding process in which the heat required for welding is generated by a
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Acceptance Criteria for Weld Defects
Acceptance criteria for Visual Inspection (Refer: UIG-97, Page – 345 of of ASME BPVC Section VIII Div 1, 2017 Edition.)
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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 about the general requirements as mentioned in part QG of
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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 as well as to filler metals
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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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Gas Tungsten Arc Welding (GTAW/TIG)
Gas Tungsten Arc Welding (GTAW) is also known as Tungsten Inert Gas Welding (TIG Welding). It is an arc welding
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