Economet BH- 3000 Electronic Brinell hardness tester is the closed loop sensor loading, the electronic control system, has 10 levels test force. The machine has high precision, high repeatability and stability, simple operation, etc. Usage Range: Brinell hardness test of the force, indentation also big, suitable for big grain size of the metal has hardness testing, such as: cast iron, non-ferrous metal and alloy, all kinds of annealing, coating process after the materials, especially for a soft metal, such as pure aluminum, lead and tin.