Advanced Ndt Services

Hydrogen Induced Cracking (HIC)

Hydrogen-induced cracking (HIC) refers to the internal cracks brought about by material trapped in budding hydrogen atoms. It involves atomic hydrogen, which is the smallest atom, that diffuses into a metallic structure. In the case of a crystal lattice becoming saturated or coming into contact with atomic hydrogen, many alloys and metals may lose their mechanical properties.


  • Applicable for base material or welds, ferritic or non-ferritic conductive metals.
  • Can be used on hot surfaces, underwater, or in irradiated environments.
  • Provides both depth and length information.
  • Accurate sizing of defects up to 25mm in depth.
  • Requires minimal surface preparation and can be applied over paint and other coatings.
  • Applicable for under water inspection as well as normal inspection.
  • Inspection data can be stored and analysed offline.