Welder Qualification-Diameter Restrictions and Position Qualified

This article is about diameter restrictions and 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: –There …

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P91 Material Welding Requirement

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 …

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“Supplementary Essential Variable, ASME Section IX”

In this article we will discuss about the Supplementary Essential variables 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 …

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ASME Boiler and Pressure Vessel Code, Section IX-Welding, Brazing and Fusion Qualification

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 …

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Mechanical Testing Requirement as per ASME BPVC Section IX

In this article we will discuss about the required mechanical testing as per ASME BPVC Section IX for qualifying a groove weld PQR (Procedure Qualification Record), Location from where specimen to be taken, purpose and acceptance of mechanical testing. Testing Requirement: The type and number of test specimen required to qualify a groove weld PQR …

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