01Material suitability for the environment
WhatCheck grade against marine or port exposure, temperature, medium and corrosion conditions.
WhyPoor material selection can cause rapid corrosion, embrittlement, loss of strength or shorter maintenance intervals.
EvidenceMaterial certificates, environmental requirements, technical clarifications and approved material lists.
02Welding procedure and WPS
WhatConfirm joint type, parent and filler material, preparation, preheat, interpass temperature and applicable WPS.
WhyUncontrolled welding can cause cracking, lack of fusion, distortion or inadequate joint properties.
EvidenceWPS, applicable procedure and welder qualifications, consumable batches and weld records.
03Weld inspection
WhatVerify visual and dimensional checks plus specified MT, PT, UT or RT areas and acceptance standards.
WhyCritical weld defects can grow under cyclic loads, impact or marine exposure.
EvidenceWeld maps, raw inspection records, formal reports, repair records and reinspection results.
04Dimensions and equipment interfaces
WhatCheck mounting holes, flanges, axes, foundations, sealing faces and connection dimensions against site equipment.
WhyInterface errors can prevent installation, compromise sealing or create abnormal load transfer.
EvidenceDimensional reports, interface drawings, trial fit or template checks and approved deviations.
05Surface preparation and coating system
WhatConfirm surface cleanliness, roughness, primer/intermediate/topcoat system, dry-film thickness and repair rules.
WhyPoor preparation or thickness shortens corrosion life and can fail during transport or service.
EvidenceAmbient-condition, preparation, roughness, thickness and adhesion records with photographs.
06Dissimilar materials and transport protection
WhatAssess dissimilar-metal contact and isolation, plus rust prevention, sealing, support and sea-freight packing.
WhyGalvanic corrosion, vibration, moisture or salt exposure can damage the product before installation.
EvidenceMaterial and isolation plan, packing list, packing photographs and protection inspection records.