01Material, heat and batch traceability
WhatMatch grade, specification, heat, batch and physical marking so documents remain tied to the actual component.
WhyA broken traceability chain prevents confirmation of material authenticity, affected batch scope and responsibility.
EvidenceMaterial certificates, heat lists, marking photographs, transfer records and traceability logs.
02Casting and forging integrity
WhatInspect shrinkage, inclusions, cracks, laps and other discontinuities, including repair and acceptance criteria.
WhySurface or internal defects can propagate under pressure, rotation, fatigue or high loading.
EvidenceVisual and NDT records, defect maps, approved repair instructions and reinspection results.
03Heat treatment and mechanical properties
WhatVerify treatment condition, process charts, specimen location and strength, toughness and hardness results.
WhyInsufficient or uneven properties can reduce load capacity, fatigue resistance or high-temperature performance.
EvidenceHeat-treatment batch records, charts, test reports, specimen traceability and retest records.
04Critical dimensions and rotating interfaces
WhatCheck journals, flanges, sealing faces, concentricity, runout, fits and associated geometric tolerances.
WhyDeviation can cause vibration, leakage, bearing distress, assembly failure or reduced operating life.
EvidenceDimensional reports, CMM or dedicated-gauge records, runout readings and interface confirmations.
05Non-destructive testing
WhatConfirm the method, area, coverage, sensitivity, acceptance standard and personnel qualification required.
WhyUnclear coverage or criteria can leave critical defects undetected or produce results that cannot be compared.
EvidenceInspection procedures, personnel qualifications, raw data, defect maps and signed reports.
06Surface protection and unapproved substitution
WhatCheck pretreatment, corrosion-protection system, coating thickness and approval status of any material or process substitution.
WhyWeak protection accelerates corrosion; an unapproved substitution changes performance, life and compliance basis.
EvidenceSurface-treatment records, thickness results, material lists and written change approvals.