Overview
Non-Destructive Testing (NDT) includes a range of non-invasive inspection techniques used to evaluate material properties, components, or complete process systems. It enables the detection, characterization, and measurement of damage mechanisms such as corrosion, fatigue, or cracking—without impairing the integrity of the inspected part.
NDT is also referred to as:
- Non-Destructive Examination (NDE)
- Non-Destructive Evaluation (NDE)
- Non-Destructive Inspection (NDI)
Background
Non-Destructive Testing/Inspection (NDT/NDI) encompasses a broad range of testing and analysis techniques used across industries to evaluate the properties of materials, components, structures, or systems. These techniques detect characteristic variations, welding defects, and discontinuities without causing any damage to the original part.
NDT methods enable thorough inspection while preserving the integrity of the material under evaluation. They provide fast, reliable results that support both preventive and corrective actions.
In industrial applications, NDT is widely used for the inspection of plant components, pressure vessels, pipeline construction, as well as castings, forgings, poles, and piping systems.
NDT plays a critical role in ensuring plant reliability, operational safety, and compliance with regulatory requirements. Furthermore, it improves operational availability by identifying weaknesses before they lead to unexpected downtime.
Since NDT methods do not damage components or systems, they offer significant advantages in both safety and cost-effectiveness.
Advantages
Unlike destructive testing, NDT allows inspections to be performed safely, reliably, and cost-effectively without damaging equipment or disrupting operations. Many NDT methods can locate defects while also determining their critical attributes, including size, shape, and orientation.
Inspection Stages
NDT can be applied at various stages of a component’s lifecycle:
- During Manufacturing: Ensure parts meet specifications and are suitable for intended applications.
- Post-Fabrication: Verify reliability and compliance with standards.
- In-Service Equipment: Monitor structural health, track damage progression, and provide data for remaining life assessments to support predictive maintenance and informed decision-making.
Industry Applications
Our non-destructive testing (NDT) products, equipment, and services are applied across a wide range of industry sectors, including:
- Railroads and transportation
- Aerospace (MRO and manufacturing)
- Military and air force
- Automotive (safety-critical parts, components, and electric vehicle systems)
- Heavy machinery and motors
- Oil and gas
- Power generation (including wind power)
- Medical industry
- 3D scanning, printing, and imaging
- Marine industry
- Training and third-party inspection services
These applications cover the inspection of both metallic and non-metallic components and structures, including polymers and composites.