Hardness testing of Materials and weld joints is necessary during production, especially before and after heat-treatment works. Hardness values show important datas to be evaluated with other analysis in condition and fitness-for-service assesment works.

Non-destructive, ultrasonic or ball-indentation techniques allow to measure surface hardness of Materials and weld joints on-site and in-service. DQE is providing hardness test with scales of Rockwell-C (HRC), Brinell (HB), Rockwell-B (HRB), Vickers (HV), Shore (HS) and evaluating results by expert engineers and academician solution-partners.