A hardness tester is used to inspect the hardness on the part. Through hardness an estimation of mechanical properties can be calculated, along with pull-bar testing the material strength can be ensured.
Depending on hardness requirement test in Brinell, Rockwell, Vickers (e.g. HB, HRC, HRB, HV). These are different methods were mainly the imprint shape differs.
We have stationary and portable testing equipment. Portables are mainly used for indication or effectively test larger parts.
Hardness of the part is a critical for quality of the part.