Fabrication, quality, inspection and safety

PWHT and local heat treatment

Design, execution and documentation of the post-weld heat-treatment cycle, including zones, thermocouples, insulation and metallurgical risks.

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Topic overview

Design, execution and documentation of the post-weld heat-treatment cycle, including zones, thermocouples, insulation and metallurgical risks.

The module links the metallurgical purpose, physical equipment principle, measurement method, metrological traceability and required production record.

Module contents

  • Ramps, holding time, tolerance band and cooling
  • Local heating band and gradient zones
  • Control and monitoring thermocouples
  • Metallurgical and mechanical risks
  • ISO 17663, ISO 17662 and qualification standards
Educational content does not replace current standards, approved WPS/WPQR documentation or decisions by competent welding coordination personnel.