Thickness Range for Welding Qualifications – PQR and WPQ Simplified

In this article we will discuss the thickness qualification range of base metal and weld metal for Procedure qualification and Welder performance qualification as per ASME code. Thickness Qualification Limit for Procedure Qualification (PQR) 1) As per ASME Section IX a) For Groove Weld (As per table QW-451.1) Note- For PQR there is no any […]

Welding of P91 Steel: Essential Requirements for Quality & Safety

In this article we will discuss about the P91 material basics, welding requirement, consumable selection, welding process selection, microstructure, application. P91 Material The use of P(T)91 materials is worldwide. There are various sources for base materials, welding consumables, and fabrication or components. The art is such that few welding problems are encountered. The desire to

“Supplementary Essential Variable, ASME Section IX”

In this article we will discuss about the Supplementary Essential variable for GTAW, SMAW, SAW and GMAW welding process as per ASME BPVC Section IX for qualifying a groove weld PQR (Procedure Qualification Record). What is supplementary Essential Variable? A supplementary essential variables are those variable in which change will affect the toughness property of

Important Interview Questions-Welding & Quality Engineer

Navigating an interview as a Welding & Quality Engineer demands both technical expertise and clarity of communication. This article gathers high-impact questions that are likely to surface during interviews for welding and quality-focused roles—designed to help you anticipate what’s asked and answer with confidence. From complex metallurgical concepts like delta ferrite and P91 procedure welding,

ASME Section IX Simplified – Welding, Brazing, and Fusing Standard

ASME BPVC Section IX – A Complete Introduction to Welding Qualification Technical Guide ASME BPVC Section IX:A Complete Introduction to Welding & Brazing Qualification Everything engineers, inspectors, and fabricators need to know about the scope, structure, and key requirements of ASME Section IX Table of Contents What Is ASME Section IX? Scope and Application Referencing

Tube to Tubesheet Welding Qualification Complete Guide

In this article we will discuss about the tube to tubesheet welder and welding operator qualification as per BPVC ASME Section IX. Tube to Tubesheet Welding Tube to tube sheet welding is a special kind of welding, both process and technique wise. Essentially the parameters, techniques adopted for a groove weld will not work for

Mechanical Testing in ASME Section IX – A Complete Guide

Mechanical Testing in ASME Section IX – A Complete Guide ASME Section IX · Welding Qualification Mechanical Testing in ASME Section IX A complete technical guide to specimen requirements, test procedures, and acceptance criteria for groove weld PQR qualification. This guide covers the essential mechanical testing procedures defined in ASME BPVC Section IX for qualifying

Importance and Calculation of Heat Input and Arc Energy

Heat Input in Welding: Importance, Formulas & Calculator Welding Engineering Reference Heat Input in Welding:Importance, Calculation & Arc Energy A comprehensive technical guide covering arc energy vs. heat input, formulas per ASME IX & EN ISO 1011-1, thermal efficiency factors, and an interactive calculator. Table of Contents What Is Heat Input in Welding? Arc Energy

A Complete Guide to Welding Positions – ISO 6947 and Section IX

This article is about Welding Position involved in fabrication of Pressure Vessel, Piping and Pipelines. Different welding standard specifies different welding positions for welder. Welding position is specified as per the position of work piece before and during welding. Position of welding is specified in ASME section IX and EN ISO 6947. Welding position is