Magnetic Particle Inspection

• Cost-effective: An MPI test is an affordable NDT method, ideal for large-scale assessments. 

• Quick results: Inspections can be conducted on-site, providing immediate feedback on the integrity of materials. 

• Surface detection: Effectively identifies surface and near-surface flaws, ensuring product quality and safety. 

• Limited to ferromagnetic materials: MPI can only be applied to magnetic materials, such as carbon steel. 

• Surface-level focus: It can’t detect subsurface defects, so you may need additional testing methods for additional insights. 

MPI Magnetic Particle Inspection is suitable for a wide range of ferromagnetic materials that require inspection of surface and near-surface layers, including: 

• Carbon steel components: Used in construction, machinery, and automotive parts. 

• Welded joints: Critical in pipelines, pressure vessels, and structural assemblies. 

• Castings: Including those used in industrial equipment and machinery. 

• Forged parts: Such as crankshafts, gears, and other high-stress applications. 

• Piping systems: Ensuring the integrity of critical transport lines in various industries. 

• Pressure vessels: Used in oil and gas, chemical processing, and power generation. 

Magnetic Particle Inspection (MPI) and Radiography are both types of NDT methods. MPI uses magnetic fields and iron particles to detect surface and near-surface flaws in ferromagnetic materials, such as steel and iron. It’s particularly effective for identifying cracks and discontinuities in welds and other critical components.  

Radiography uses X-rays or gamma rays to create images of the internal structure of materials, allowing for the detection of both surface and subsurface defects. This method is suitable for various materials, including metals, plastics, and composites. 

Learn more about our Radiography services.  

Non-Destructive Testing (NDT) uses techniques to check the quality and safety of materials without causing any damage. These methods help ensure that products are reliable and meet safety standards. 

Magnetic Particle Inspection (MPI) is one specific type of NDT. It focuses on finding surface and near-surface flaws in ferromagnetic materials, such as carbon steel and stainless steel. MPI uses magnetic fields and tiny iron particles to reveal any imperfections, making it especially useful for checking welds and critical components. 

In essence, MPI is a specialised technique within NDT that targets magnetic materials. If you’re looking for expert MPI services or want to learn more about our NDT offering, contact BES Group via our online form.

Magnetic Particle Inspection (MPI) can be used on any metal that has magnetic properties. This includes several common materials, such as: 

• Carbon steel: Often used in construction and manufacturing for its strength. 

• Cast iron: Used in pipes and machine parts due to its high casting abilities. 

• Alloy steel: Found in high-stress applications like aerospace and automotive parts. 

• Wrought iron: Used in decorative items and structural components because of its strength and flexibility.

Magnetic Particle Inspection plays a crucial role in ensuring safety and reliability across various industries, such as: 

• Oil and Gas
• Manufacturing
• Industrial 
• Marine and Offshore
• Renewables
• Power Generation
• Utilities

We offer a variety of inspection and testing methods to help provide a comprehensive understanding of your assets integrity, such as:

• Ultrasonic Testing
• Dye Penetrant Inspection
• Radiography
• Visual Inspections

You can also explore our various Destructive Testing methods to assess mechanical properties of your materials.