Non-Destructive testing (NDT)

Non-Destructive Testing Services (NDT)

Because NDT doesn’t damage the equipment being inspected, it is a highly useful way to verify manufacturing processes, troubleshoot quality issues, analyse components including welding and to assist in the research and development of new products.

  • Dye Penetrant Services (DPI):A widely used method of locating surface defects in non-porous materials. It can be used on all ferrous and non-ferrous materials (although magnetic-particle inspection is often preferred for ferrous surfaces). DPI can be used to locate defects in casting, forging and welding and to highlight hairline cracks, surface porosity, and fatigue cracks.
  • Magnetic Particle Inspection (MPI): A process for detecting surface and subsurface flaws in metals such as iron, nickel, cobalt and some of their alloys. It is carried out by creating a magnetic field, which reveals flaws on the surface and inside the metal. It can also be used to test for material stress and corrosion.
  • Eddy Current Testing (ECT):ECT uses electromagnetic induction to detect surface and sub surface flaws in conductive materials. The technique is very sensitive and can detect even very tight cracks in both ferromagnetic and non-ferromagnetic materials.
  • Ultrasonic Testing (UT):UT testing usually involves very short ultrasonic pulse-waves with centre frequencies ranging from 0.1-15 MHz, and occasionally up to 50 MHz, which are transmitted into a material to detect internal flaws or to characterise its makeup.