Hardness is a characteristic of a material, not a fundamental physical property. It is defined as the resistance to indentation, and it is determined by measuring the permanent depth of the indentation.
Brinell Hardness Tester
Brinell test methods are defined in the following standards: ASTM E10 and ISO 6506. It is the first option for the metal casting hardness test, especially for the relatively coarse grain gray iron castings, Brinell hardness tester is the only choice, and we need to try to choose 3000 Kgf, 10mm ball test conditions. When the metal casting size is small, we can also choose a Rockwell hardness tester.
Rockwell Hardness Tester
A Rockwell hardness tester is commonly used in the inspection to cast iron. All the parts with smaller grains, if there is not enough space for the Brinell hardness test, can be tested by a Rockwell hardness tester. For pearlitic malleable iron, chilled cast iron, and steel castings, HRB or HRC scale can be used, and if the material is heterogeneous, several readings should be measured to get the average value.
Rockwell hardness test is quick, convenient, and has a small indentation, which can be used to directly test the finished piece. It is suitable for testing mass production of finished or semi-finished parts piece by piece.
Vickers Hardness Tester
The Vickers hardness test is a test performed to measure the hardness of materials, specifically thin sections and small parts. It is comprised of a diamond indenter and a light load to produce an indentation on the subject under testing. The depth of indentation is converted into the hardness value of the object.
The smaller the indentation, the harder the object. Likewise, if the indentation is large, the material is lacking in hardness. This test is utilized by many industries to determine the right type of material to use for operations and machinery. A material with ideal hardness according to its purpose should be chosen.
The Vickers hardness test is also known as microhardness testing.
TESTRON Hardness Tester Portfolio covers all standard test methods, such as Vickers, Brinell, Knoop & Rockwell, as well as a wide test load range. The entire hardness tester range is characterized by technological innovation, precise measuring instruments and maximum comfort due to automation and advanced interfaces.
Please contact info@testrongroup.com for more information and expert suggestions.
