Portable Hardness Testing – HT

Portable Hardness Testing (HT) is a non-destructive testing method utilized to obtain the hardness value of a material. IRISNDT uses the latest GE Portable Hardness Testing Technology to provide clients the information they require about the materials they are utilizing. IRISNDT also employs full time metallurgists within our mechanical testing facility.


  1. Ferrous and non-ferrous metals and alloys, and select non-metallic materials
  2. Welds and weld overlays, weld heat affected zones (HAZ’s), castings and forgings, piping, stress relieved material, machined parts, pressure vessels, and structural steel
  3. Damaged materials as part of a failure analysis
  4. Welds and to verify material compliance to:
  5. ASME Section IX
  6. NACE MR0175/ISO 15156 requirements


  1. Fast results and reporting to the client
  2. Field Ready
  3. Highly portable tools can be used in most locations


  1. Brinell hardness tests cannot be performed on thin material, in weld Heat-affected zones, and on surfaces where indentation are unacceptable such as finished machined surfaces
  2. MicroDur measurements require a surface polished to nearly a mirror finish
  3. The Equotip should only be used on parts with a thickness of ½” or greater
  4. When electric hardness testing equipment is in use, the temperature of the test material cannot exceed approximately 90 °C (200 °F)