Robust welding procedures form the technical foundation of compliant fabrication. Poorly defined or incorrectly qualified procedures introduce significant technical and commercial risk.
Triple Arc Welding Solutions provides professional weld procedure development and qualification support aligned with ISO, ASME, and AWS standards, as well as client specifications.
We assist organisations in developing welding procedures tailored to your materials, processes, and service requirements.
Preliminary Welding Procedure Specifications (pWPS)
Preliminary Welding Procedure Specifications (pWPS) play a critical role in defining technically sound welding parameters prior to formal qualification. Well-structured preliminary procedures provide the technical foundation for qualification success, ensuring that essential variables, process limitations, and material behaviour are properly considered from the outset.
pWPS development is approached from an engineering perspective, considering factors such as base material weldability, hydrogen control requirements, heat input strategy, PWHT requirements, and anticipated fabrication constraints.
Welding Procedure Specifications (WPS)
Welding Procedure Specifications (WPS) define the operational envelope required to achieve consistent, repeatable welding outcomes. Effective WPS development requires careful control of essential variables, parameter selection, and alignment between qualification data, fabrication conditions, and material performance requirements.
We support:
• WPS development and technical review
• Essential variable assessment
• Welding parameter optimisation
• Process and consumable selection
• Metallurgical and mechanical considerations
Procedures are developed with careful consideration of weldability, mechanical performance, production practicality, and compliance with applicable qualification frameworks.
Weld Procedure Qualification (WPQR / PQR)
Weld Procedure Qualification Records (WPQR / PQR) provide the formal validation of welding procedures, demonstrating that selected parameters produce acceptable mechanical and metallurgical performance. Qualification success depends heavily on appropriate variable selection, test configuration, and understanding of material behaviour.
Triple Arc provides structured engineering support for:
• Qualification test planning
• Essential variable range optimisation
• Qualification failure analysis
• Re-qualification and recovery strategies
• Technical interpretation of test outcomes
Support is focused on improving qualification reliability, reducing repeat testing, and ensuring procedures remain technically coherent and practically applicable.
Standards & Compliance Frameworks
Welding procedures and qualifications must align with recognised standards and project-specific technical requirements. Triple Arc supports procedure development and qualification strategies across a range of applicable compliance frameworks.
Procedures may be developed in accordance with:
• ISO 15614 series
• ASME Section IX
• AWS series
• Client and project specifications
Value to Clients
Effective procedure development and qualification strategy provide measurable technical and commercial benefits. Early-stage engineering input significantly improves qualification success rates and fabrication reliability.
Robust welding procedures assist in reducing:
• Qualification failures
• Fabrication risk
• Rework and production delays
• Compliance-related uncertainty