ASME Section IX

ASME Section IX Articles and qualification Requirements

P-Number, Group No, F-Number and A-Number in welding (ASME Section IX)

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ASME Boiler and pressure vessel code (BPVC) has assigned certain numbers to base metals to minimize the number of procedure and qualifications. Base metals are categorized as P No. is further divided in group numbers based essentially on comparable base metal characteristics, such as: Composition, Weldability Brazeablity Mechanical properties. Filler metals (electrodes) are categorized as …

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Welder Qualification (WPQ) as per ASME Section IX

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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 …

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Welder Qualification-Diameter Restrictions and Position Qualified

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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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Thickness Qualification Range for PQR and WPQ

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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 …

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“Supplementary Essential Variable, ASME Section IX”

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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

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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

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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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Welding Positions

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This article is about Welding Position involved in fabrication of Pressure Vessel, Piping and Pipelines. Different welding standard specifies different welding position 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 …

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