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A Welding Procedure Specification (WPS) is a critical document that outlines the procedures and parameters for welding operations. It provides detailed guidance on welding variables to ensure that the welds meet the required quality and mechanical properties. Each WPS is tailored to specific material alloys and welding techniques, and it is developed based on relevant codes and engineering standards.
The WPS is designed to standardize welding practices, ensuring that welders consistently use accepted procedures to achieve reliable and high-quality welds. It serves as a comprehensive guide for achieving repeatable and trusted welding results.
A Procedure Qualification Record (PQR) documents the welding data used to create a test coupon. The PQR demonstrates that the welding process produces welds with the correct mechanical and metallurgical properties. It is an essential component in validating the effectiveness of the WPS.
Develop a Welding Procedure Specification (WPS):
Create a detailed WPS based on industry standards such as ASME Sec IX, ISO 15609, or AWS D1.1. This document outlines the welding parameters and procedures to be used.
Conduct Welding and Inspection:
Weld a test piece following the specifications outlined in the WPS. A certified welding inspector, such as an AWS Certified Welding Inspector (CWI), witnesses the welding process and records the welding data, including current settings and pre-heat conditions.
Perform Testing:
The test piece undergoes both Destructive Testing (DT) and Non-Destructive Testing (NDT), including radiographic and mechanical tests, as specified by the welding procedure standard. These tests are conducted in a qualified laboratory, with the Inspection Body potentially witnessing the tests and reviewing radiographs.
Document and Endorse:
If the test results are successful, complete the necessary documentation. The test body’s surveyor reviews, signs, and endorses the documents, validating the procedure.
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+91 88665 06844
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For businesses aiming to ensure that welding procedures meet stringent quality and performance standards, a thorough preparation and validation of Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR) is essential. Our PQR/WPS preparation process provides a comprehensive evaluation of welding procedures to ensure compliance and quality. Here’s how we conduct our PQR/WPS preparation:
Our inspectors visit your facility to conduct a detailed assessment of your welding processes and resources.
We examine all relevant documentation, including existing welding procedures, process records, and compliance reports, to verify accuracy and adherence to standards.
We develop a WPS tailored to specific material alloys and welding techniques, guided by industry standards such as ASME Sec IX, ISO 15609, and AWS D1.1. This document outlines the welding variables and procedures required to achieve high-quality welds.
A PQR documents the welding data used to create the test coupon, validating the WPS by demonstrating that the welding process produces welds with the required mechanical and metallurgical properties.
We verify that the welding process and results comply with industry regulations and standards, ensuring all practices and products meet required benchmarks for quality and safety.
Following the testing and analysis, we provide a comprehensive report detailing our findings, including any identified issues, a corrective action plan (CAP), and recommendations for improvement. The report is reviewed, signed, and endorsed by the test body’s surveyor.
--> Test Piece Welding: We weld a test piece following the WPS specifications. --> Certified Inspection: A certified welding inspector (e.g., AWS Certified Welding Inspector) witnesses the welding process and records all relevant data such as current settings and pre-heat conditions.
--> Destructive Testing (DT): We perform mechanical tests such as tensile, bend, and impact tests to evaluate the weld’s properties. --> Non-Destructive Testing (NDT): We conduct tests such as radiography and ultrasonic testing to ensure the integrity of the welds.
We offer ongoing support to assist with the implementation of corrective actions and address any issues that arise post-audit. Follow-up audits and consultations are available to track progress and ensure continued compliance.
Effective scheduling of PQR/WPS preparation is crucial to ensure optimal outcomes and compliance with industry standards. Consider the following:
Schedule PQR/WPS preparation at the start of a new project to establish welding procedures that meet specific project requirements and ensure quality from the beginning.
Perform PQR/WPS preparation whenever there is a change in material types or grades to ensure that the welding procedures are appropriate for the new materials.
Conduct PQR/WPS preparation when industry standards or regulations are updated to ensure that your welding procedures remain compliant.
Schedule PQR/WPS preparation as part of quality improvement initiatives to refine existing welding procedures and enhance overall welding quality.
Find answers to frequently asked questions about our inspection services, including processes, benefits, and scheduling tips.
PQR/WPS preparation ensures that welding procedures are standardized, compliant with industry standards, and capable of producing high-quality welds.
A PQR requires both Destructive and Non-Destructive Testing, including radiographic and mechanical tests, to ensure that the welds meet the specified properties.
A WPS is a detailed document that outlines the welding procedures and parameters needed to achieve high-quality welds. It ensures consistency and compliance with industry standards.
A PQR is a record of the welding data used to produce a test coupon. It verifies that the welding process produces welds with the required mechanical and metallurgical properties.
PQR/WPS preparation ensures that welding procedures are standardized, compliant with industry standards, and capable of producing high-quality welds.
