Welding till the End!
For fabrication of any equipment we require welders and welding operators must be qualified as per the qualification standard referred by the construction code. Whenever construction is as per ASME construction codes (like ASME B31.1, B31.3 or ASME section VIII) ASME section IX is used for the qualification of the procedure and welder. Welder is […]
This article is about diameter restrictions and welding position qualification involves in welder and welding operator qualification as per ASME Section IX. Diameter Restriction for Welder Qualification (as per QW-303) 1) If welder is qualified by groove weld during test, then the qualification range will be below (as per table QW-452.3 and table QW-452.6) Note:
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
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
In this article we have discussed about the difference between welder and welding operator, purpose of their qualification and how ASME section IX divided the welding in manual, semi-automatic, machine and automatic welding.
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
Below mentioned question is likely to be asked in Interview Questions Welding & Quality Engineer should must prepare for these question before interview. Q1. What is sour service? Q.2 Why Ni is restricted up to 1% max. for sour service? Q3. What is the role of delta ferrite in stainless steel welding? Q4. Why PWHT is
The ASME section IX specifies the requirements for the qualification of welder, welding operators, brazers, brazing operators and fusion operators and the procedure employed in welding, 0brazing and plastic fusing in accordance with the ASME boiler and pressure vessel code and the ASME code 31 for pressure piping and others codes and specifications. ASME section
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
This article will cover the essential mechanical testing procedures outlined in ASME BPVC Section IX (ASME section 9)for the qualification of a groove weld PQR (Procedure Qualification Record), including details on specimen extraction location, the objectives of the testing, and criteria for acceptance. Testing Requirement: QW-451 outlines the specific type and quantity of test specimens