Magnetic Particle Testing (MT): Essential Defect Detection
Currently running in Cambridge from 13–16 April 2026, the Magnetic Particle Testing (MT) course continues to play a vital role in developing inspection capability across industries where safety, quality and reliability are critical.
As one of the most widely used non-destructive testing (NDT) methods, magnetic particle testing provides a reliable and efficient way to detect surface and near-surface defects in ferromagnetic materials—making it a key technique for weld inspection and structural integrity assessment.
Understanding Magnetic Particle Testing
Magnetic particle testing is specifically designed for materials such as iron, steel, nickel and cobalt. The process involves magnetising a component and applying fine magnetic particles to its surface. Any discontinuities—such as cracks or flaws—disturb the magnetic field, causing particles to gather at these points and form visible indications.
This makes MT particularly effective for identifying defects that could compromise performance, especially in safety-critical components used across sectors including aerospace, oil and gas, power generation and manufacturing.
Building Technical Knowledge and Practical Skills
The course provides a comprehensive understanding of both the theory and application of magnetic particle inspection. Delegates are introduced to core principles including magnetism, magnetic fields, induction and material behaviour, alongside practical considerations such as magnetisation techniques and defect detection.
Key areas covered include:
- Principles of magnetism and magnetic field behaviour
- Methods of magnetisation and inspection techniques
- Detection and interpretation of indications
- Demagnetisation and sensitivity assessment
- Writing inspection procedures and reports
This combination of theory and hands-on application ensures participants can confidently perform inspections and interpret results in real-world environments.
Aligned with Industry Standards
Training is delivered in accordance with internationally recognised standards, including BS EN ISO 9712, and supports progression towards CSWIP and PCN certification at Levels 1 and 2.
This alignment ensures that delegates not only gain practical skills but also meet the competency requirements expected across global industries.
This course is designed for:
- NDT technicians and inspectors
- Welding and quality professionals
- Engineers involved in fabrication or maintenance
- Individuals seeking certification in magnetic particle testing
It is particularly valuable for those responsible for inspecting welds, castings and forged components during both fabrication and in-service operations.
Upcoming Course Dates in the UK
Following the current April delivery in Middlesbrough and Cambridge, upcoming opportunities to attend the course in the UK include:
27 April – 1 May – Middlesbrough
18 – 22 May – Middlesbrough
22 – 26 June – Cambridge
06 – 10 July – Cambridge
27 – 31 July – Middlesbrough and Cambridge
14 – 18 September – Cambridge
21 – 25 September – Middlesbrough
26 – 30 October – Cambridge
02 – 06 November – Middlesbrough
30 November – 04 December – Middlesbrough
With demand for qualified NDT personnel continuing to grow, early registration is recommended to secure a place.
Magnetic Particle Testing remains a fundamental inspection method for ensuring the integrity and safety of critical components. By combining theoretical understanding with practical application, this course equips professionals with the skills needed to identify defects, support quality assurance and meet industry certification requirements.
As industries continue to prioritise compliance and reliability, developing competence in MT is not just beneficial—it is essential. And TWI Training is here to help you achieve it. For more information and general enquiry please visit our dedicated webpage for the course or contact us.