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Hardness Tester
Hardness Tester
There are several types of hardness testers available, each suited for different materials and applications. The main types include Rockwell, Knoop, Brinell, Shore, and Vickers hardness testers.
This tester is suitable for measuring the hardness of ferrous metals, non-ferrous metals, and non-metallic materials. It operates by measuring the depth of indentation made by a diamond cone or steel ball under a specific load. It is particularly useful when Brinell hardness testing is not feasible, such as when HB > 450 or the sample is too small. It is applicable to finished products and thin sheets.
The Brinell tester uses an optical principle to measure the diameter of a circular indentation made by a hardened steel ball under a certain load. It is suitable for annealed, normalized, quenched, and tempered steel, cast iron, and non-ferrous metals. Due to the large indentation, it is not considered a nondestructive test.
This tester is ideal for measuring the hardness of micro and thin test pieces, as well as parts with surface infiltration coating treatments. It is applicable to non-ferrous metals, IC sheets, thin plastics, metal sheets, coatings, surface coatings, laminated metals, heat-treated carbonized layers, and quenching hardened layers.
Catalog excerpts
What are the differences between different types of hardness tester ? 1 There are many kinds of hardness testers on the market, including Rockwell hardness tester, Knoop hardness tester, Brinell hardness tester, Shore hardness tester, Vickers hardness tester, etc. Let's see the differences between them. 2 ① Rockwell hardness tester is applicable to the hardness measurement of ferrous metals, non-ferrous metals and non-metallic materials. The principle is to measure the depth. When HB>450 or the sample is too small, if Brinell hardness test cannot be used, Rockwell hardness shall be used for measurement. It uses a diamond cone with a vertex angle of
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120 ° or a steel ball with a diameter of 1.59 and 3.18 mm, which needs to be pressed into the surface of the tested material under a certain load, and the material hardness is obtained according to the depth of the indentation, which is applicable to finished products and thin sheets. 3 ② Brinell hardness tester uses optical principle to measure the diameter of circular indentation, and uses a certain load to press a hardened steel ball of a certain size into the surface of the material. After being kept for a period of time and unloaded, the ratio of the load to the indentation area, that is,...
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