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Development & Approval of Welding Procedures

Development & Approval of Welding Procedures.
In Marex Subsea Welds, we can assist and advise you on all your welding requirements, welding standards and specifications below the waterline. Our exclusive associates are authorised through International or National directives to carry out Third Party Organisation (TPO) work related to the Pressure Equipment Directive (PED). G.AT.S. laboratories are approved under the following:
  • BS EN ISO/IEC 17020:2012 - Conformity assessment. Requirements for the operation of various types of bodies performing inspection.
  • BS EN ISO/IEC 17025:2005 - General requirements for the competence of testing and calibration laboratories
Welding Procedures and Quality Documentation Reviews
We can write/develop all your welding procedure specifications (WPS), advise on all relevant codes and standards. Produce QA/QC documentation and provide working instructions for any welding application, no matter how large or small.
Welder Qualifications & Assessments
We offer formal welder qualification testing to a wide range of National and International standards for all fusion welding processes on a wide range of materials. We also offer welder assessments and competence appraisals prior to testing, to ensure that standards are met.
On Site Services, General Help & Advice
Technical Consulting on site is available upon request
Welding Engineering
  • Assessment of contract documentation & design reviews.
  • Technical advice on producing sound welds.
  • Co-ordination and control of welding related operations.
  • Technical representation at meetings with client.
  • Writing welding procedures and qualification testing of welders.
  • Technical assessment of contractors.

Welding Inspection
Visual inspection and non-destructive testing.
  • Welding coordination tasks and responsibilities (BSEN ISO 14731: 2006)
  • QA/QC procedures (ISO 3834)
  • NDT, including Dye Pen, MPI and visual welding inspection
Quality Assurance
  • Establishment and maintainance of welding quality requirements.
  • Assessment of subcontractor quality systems.
Material Selection & Testing
  • Advice on material selection and behavioral effects of composition variation with particular materials.
  • Mechanical testing for welding qualifications and for investigative purposes.
  • Material analysis and corrosion testing.
  • Metallurgical investigation
Investigation of weldability problems and failure analysis.