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Weld Procedure Qualification

Weld Procedure Qualification

Weld Procedure Qualification


In the Non-Destructive Testing (NDT) industry, ensuring the reliability and quality of welded components is of utmost importance. Weld Procedure Qualification (WPQ) plays a vital role in this process by verifying the ability of a specific welding procedure to consistently produce acceptable welds. Among the leading companies excelling in delivering top-notch WPQ services is NDT and PWHT Solutions. This content will delve into the significance of WPQ in the NDT industry, highlighting how NDT and PWHT Solutions stands out from its competitors.

Weld Procedure Qualification (WPQ) in the NDT Industry:

WPQ is a systematic approach used to evaluate and qualify welding procedures based on established industry standards and codes such as the American Society of Mechanical Engineers (ASME) Section IX, American Welding Society (AWS) D1.1, and others. The WPQ process involves a series of tests, inspections, and documentation to demonstrate that a specific welding procedure is capable of producing welds meeting the required criteria.


The WPQ process typically includes the following key steps:

Procedure Development: A welding procedure is developed based on project requirements, materials, joint design, and applicable codes and standards.

Welding Procedure Specification (WPS): A WPS is prepared, outlining the necessary variables, such as welding process, filler material, preheating, and interpass temperature, post-weld heat treatment (PWHT), etc.

Welder Qualification: Qualified welders perform test welds as per the developed WPS to demonstrate their competency and ability to consistently produce satisfactory welds.

Mechanical Testing: Various mechanical tests are conducted to evaluate the properties of the weld, including tensile strength, impact toughness, and bend tests.

Non-Destructive Testing (NDT): A range of NDT techniques such as radiography, ultrasonic testing, magnetic particle inspection, or liquid penetrant inspection is employed to assess the integrity of the weld and identify any defects or discontinuities.

Documentation and Certification: Comprehensive documentation is generated, including welding procedure specifications, test results, inspection reports, and certifications, to demonstrate compliance with relevant standards.

NDT and PWHT Solutions: Delivering Unmatched WPQ Services:

Expertise and Experience: NDT and PWHT Solutions boasts a team of highly skilled and certified professionals with extensive expertise in WPQ and NDT. They possess in-depth knowledge of welding codes and standards and stay updated with the latest industry advancements.

State-of-the-Art Facilities: The company is equipped with cutting-edge facilities and equipment required for WPQ, NDT, and PWHT processes. They ensure the highest level of accuracy, precision, and efficiency in testing and inspection procedures.

Tailored Solutions: NDT and PWHT Solutions understands that every project is unique, and they offer customized WPQ solutions to meet specific client requirements. They work closely with clients, providing expert guidance throughout the qualification process, including procedure development, testing, and documentation.

Compliance with Industry Standards: The company strictly adheres to international welding codes and standards, ensuring that all WPQ services are conducted in accordance with the latest regulations. This commitment to compliance enhances the credibility and acceptance of their welding procedures.

Integrated Services: NDT and PWHT Solutions offers a comprehensive range of services beyond WPQ, including NDT inspections, post-weld heat treatment (PWHT), welder qualification, material testing, and more. This integrated approach provides clients with a one-stop solution for all their welding and inspection needs.



Weld Procedure Qualification is an essential aspect of the NDT industry, ensuring the reliability and quality of welded components. NDT and PWHT Solutions excels in delivering top-notch WPQ services, distinguishing itself from competitors through its expertise, state-of-the-art facilities, tailored solutions, compliance with industry standards, and comprehensive range of integrated services. By choosing NDT and PWHT Solutions, clients can be confident in receiving reliable, compliant, and efficient WPQ services that meet the highest industry standards, ultimately contributing to the success and safety of their projects.

We offers weld procedure qualification through NDT & mechanical testing to verify qualification to perform welding operations using a particular procedure.