Desktop HBS-3000 Touch Screen Digital Brinell Hardness Tester , Steel Hardness Tester 1102D

The HBS-3000CM color screen digital display Brinell hardness tester is a high-tech opto-mechanical integration product featuring novel design, exceptional reliability, superior operability, and intuitive interface. This advanced equipment combines precision mechanical technology with photoelectric technology for accurate Brinell testing applications.

Brinell hardness testing is primarily used for hardness measurement of cast iron, steel, non-ferrous metals, and soft alloys. Additionally, it can measure hardness of certain non-metallic materials including hard plastics and bakelite. Ideal for factories, workshops, laboratories, universities, and scientific research institutions.

The Brinell hardness tester uses one of the oldest hardness testing methods still commonly used today. Invented in Sweden by Dr. Johan August Brinell in 1900, this test is often used to determine the hardness of castings and forgings whose grain structure is too coarse for accurate Rockwell or Vickers testing.

In this test method, a predetermined force (F) is applied to a tungsten carbide ball of fixed diameter (D) and held for a predetermined time period, then removed. The spherical indenter creates an impression (permanent deformation) on the test metal piece.

A hardness test is typically performed by pressing a specifically dimensioned and loaded object (indenter) into the surface of the material being tested. The hardness is determined by measuring the depth of indenter penetration or by measuring the size of the impression left by an indenter.

Manual reading is straightforward. You look through the lenses, focus the optics, position the lens on the impression, and read the result in mm. The mm measurement is then converted to HBW (Hardness Brinell) by consulting a conversion table.

The Brinell hardness testing uses a 10mm hardened steel ball, while the Rockwell test uses either a much smaller steel ball (<4mm) or a diamond cone. The Rockwell test measures the depth of the indentation, while the Brinell test measures the width of the indentation.

A spherical indenter is used. In the Brinell hardness test, the size of indentation left by the indenter is measured optically. Unlike the Vickers method which uses a pyramid-shaped indenter, the Brinell method uses a spherical indenter.

The Brinell hardness number (BHN) is calculated by dividing the load applied by the surface area of the indentation.

ISO 6506-1:2014 specifies the method for the Brinell hardness test for metallic materials. It is applicable to both fixed location and portable hardness testing machines.

This instrument is a low-power hand-held microscope for measuring the diameter of a Brinell hardness indentation. The Brinell hardness value is calculated from the indentation diameter measurement, ball diameter, and applied force.

Brinell hardness is determined by forcing a hardened steel or carbide ball of known diameter under a known load into a surface and measuring the diameter of the indentation with a microscope.

Brinell test indenter is made of hardened steel while Vickers test indenter is made of diamond. These give geometrically similar indentations, resulting in comparable test results.