Brinell hardness tester uses the oldest technology to measure material hardness. Invented by Johan Brinell in 1900, the test determines hardness from castings, forgings and any other materials whose grain structure is course for the Rockwell or Vickers accuracy.
Characteristics of Brinell Tester
It has over 25 ball combinations, making it possible to test various materials, including metals. The tester varies the ball size to get a material’s dimension and shape.
Ball size versus test force is the unit of measure; the outcome is considered accurate if they are constant.
Results from the Brinell testing apply in shipment, storage and other quality control procedures. The results help in understanding the material’s strength, resistance and flexibility.
Brinell hardness tester can withstand extreme weather conditions. Since dust can affect the accuracy of the hardness, the tester has an air filtration system to sieve any impurities.
How to Test Material Hardness Using the Brinell Tester
Consider using a known indenter and force when testing. Apply a perpendicular force on the indenter to the material and hold it down for some time.
After releasing the force, measure the diameter of the indentation 2 sides perpendicular to each other. Compute the hardness value based on the diameter mean using the Brinell hardness testing formula.
Nexus is the leading Brinell hardness testing brand. The 3300(M), 3300FA, 3400(M) and 3400FA measure between 31.25kg and 3000kgf. The 8103RSB and 8103XLM-RSB range between 3kgf and 3000kgf. Nemesis 9600RS (B) completes the Brinell hardness tester in store.