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6 Struers hardness testing A SOLUTION FOR EVERY METHOD Hardness Testing Methods Struers provides a broad range of hardness testing equipment suitable for every material and method. As materialographic specialists, we know that your equipment will only deliver the right result if it is calibrated for your lab and your requirements. That’s why with Struers you get far more than class- leading equipment – you get a complete package of services to ensure everything is set up correctly from day one, with ongoing support to guarantee optimal performance and results far into the future. 4 standard methods The hardness of a material is the resistance it exhibits to permanent deformation by penetration of a harder material. Four different hardness testing methods have become standard to cover all different types of material. Our hardness tester solutions can support you with all testing methods: Vickers is a hardness test for all solid materials. It is calculated by measuring the diagonal lengths of an indent in the sample material left by a diamond pyramid indenter with a given load. The diagonals of the indent are measured optically to determine the hardness, using a table or formula. Brinell is used for hardness testing larger samples with a coarse or inhomogeneous grain structure. The indentation leaves a relatively large impression, using a tungsten carbide ball. The size of the indent is read optically. Knoop is an alternative to Vickers in the micro hardness testing range. It is mainly used for brittle materials and to facilitate the hardness testing of thin layers. The indenter is an asymmetrical pyramidal diamond, and the indent is measured by optically measuring the long diagonal. Rockwell is a fast test method developed for production control and is mainly used for metallic materials. The hardness is calculated by measuring the depth of an indent after an indenter has been forced into the specimen material at a given load.
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Struers hardness testing 7 Whatever the hardness test method, we have a solution Given your materials and the ISO or ASTM standard you need to meet, it is important to understand which Struers equipment is best for you. ISO and ASTM standards overview 0.001 0.01 Vickers ISO 6507, ASTM E92, ASTM E384, JIS B 7725 Knoop ISO 4545, ASTM E92, ASTM E384, JIS Z 2251 Rockwell ISO 6508, ASTM E18, JIS Z 2245 Brinell ISO 6506, ASTM E10, JIS Z 2243 Universal Supports Vickers, Brinell, Rockwell and in some models also Knoop scales 1 2 5 10 31.25 62.5 100 150 250 750 3000 kgf Struers equipment overview Duramin-4 M1 Duramin-4 M2 HV, HK DuraVista-40M & DuraVista-40A HV, HK (HB) DuraVista-80M & DuraVista-80A HV, HK, (HB) DuraVigo-150 HR Duramin-160 HR Duramin-3000 HB DuraVersa-100A HV, HK, HB, HR DuraVersa-100B HV, HK, HB, HR DuraVersa-100C HV, HK, HB, HR Duramin-600 M1 (Z1) Duramin-650 M1 (AC1) HV, HB, HR Duramin-600 M2 (Z2) Duramin-650 M2 (AC2) HV, HB, HR Duramin-600 M3 (Z3) Duramin-650 M3 (AC3) HV, HB, HR 0.001 0.01 1 2 5 10 31.25 62.5 100 150 250 750 3000 kgf
