Vickers Hardness Test Blocks

The Vickers Hardness Test is a reliable method for evaluating a material’s resistance to permanent indentation. It uses a precise diamond indenter with a pyramidal shape in order to create a small indentation on the test block surface.

The measured dimensions and applied load are used to determine the Vickers Hardness Number (HV), and the diagonals of this indentation are measured in accordance with the load used. This method of testing hardness provides a consistent indentation value, making it ideal for use in a wide range of industries.

Vickers Hardness Test Blocks

230.00382.00

Calibrated by our in-house UKAS accredited calibration laboratory and supplied with a UKAS calibration certificate. Also supplied with corrosion prevention packaging and storage case. Listed values are nominal, actual block will be within the specified range of the nominal value.

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Calculation of The Material Strength

The HV value is calculated by the ratio between the applied load (Represented by F and measured in Newtons) and the surface area of the indentation. Due to slight variations in the indentation shape, the average of two measured diagonals is used to calculate the surface area.

Vickers Hardness values can vary widely, from as low as 1 HV to as high as 3,000 HV, depending on the material being tested and the applied load. The test can be conducted with loads ranging from as little as 0.00025 kg up to 150 kg. For optimal test accuracy, the force needs to be applied gradually and held for a specified dwell time (usually 10-15 seconds).

This versatility makes the Vickers Hardness test a great ally for micro-hardness applications where high precision and accuracy are essential. The Vickers method uses significantly lower forces in the macro range compared to the Brinell method.

Characteristics of The Vickers Hardness Test

Even though the Vickers Hardness Test is versatile and suitable for a range of applications, it may not be suitable for very soft or highly textured materials. For these situations, other hardness test methods like Brinell or Rockwell may be more appropriate.

In the Vickers hardness testing, using a higher load is usually preferred because it reduces the influence of surface treatments and provides more results. However, for thin materials or coatings, lighter loads are essential to avoid compromising the material’s integrity.

The Vickers Hardness Test, together with the Knoop test, are excellent for microhardness testing because of their ability to produce small, precise indentations, which is ideal for measurement of tiny areas or thin films.

The main advantages of the Vickers Hardness Test include:

• Wide Material Range Application: Vickers tests a wide hardness range, making it suitable for various materials across many industries. The materials include metals, ceramics, plastics and more.
• Single Indenter: The test uses a single, universal indenter for all loads.
• Non-Destructive Testing: The test sample remains usable for further applications.
• Microhardness: Suitable for testing smaller areas and very thin coatings.
• Brittle Material: The Vickers hardness test is suitable for brittle materials tests, like glass and ceramics, where other methods might not be suitable. It is also possible to measure the cracks that develop in these materials.
• Quality Control: Vickers is reliable when it comes to quality control, offering accurate and fast hardness tests.
• Research and Development: Vickers empowers research and development by analysing material behaviour and properties.

When Choose Vickers Hardness Test?

Thanks to the wide material applicability and precise indenter, the Vicker Hardness Test is suitable for a variety of materials and applications, so whether you’re analysing metals, ceramics, coatings, or even brittle materials, Vickers delivers accurate and reliable hardness measurements.

For applications requiring high precision, non-destructive testing, and a robust method for diverse materials, the Vickers Hardness Test is a clear choice. For more information about our Vicker Hardness Test blocks, contact us. Our experts at Indentec will be happy to answer your questions.

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