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Hardness Testing

We offer a range of Hardness tests, including Brinell, Rockwell, Vickers, and Microhardness testing

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Hardness Testing

Hardness testing is a non-destructive test method that involves applying a constant load via a rounded or pointed object, under controlled conditions, to create an indentation in a metal surface. This is then measured to determine the hardness of the material.

Hardness testing goes hand-in-hand with tensile testing, as it is a good indicator of mechanical properties within materials. It indicated a material’s ability to resist indentation and, as such, gives an indication of strength, wear resistance and toughness. 

The process involves the application of a constant load on a rounded or pointed indenter to create and indentation in the material surface. The depth of penetration is then measured to provide an indication of hardness. Although it can be done as a stand-alone test, it is usually carried out in conjunction with other mechanical tests as an overall assessment of material properties. 

Hardness affects a wide range of physical characteristics, such as how much the metal will wear, scratch, or withstand stress. 

There are several methods of hardness tests available, each with their own standards and benefits., but choosing the right hardness test is usually governed by the size and geometry of the sample, the area to be tested and ease of application. 

Our mechanical department specialises in Rockwell, Brinell, and Vickers hardness tests. Our metallurgical department also provides microhardness testing, including Knoop Testing and Vickers Microhardness. 
 

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Brinell

Brinell hardness testing uses a wide indentation across the surface are to measure the hardness of coarse materials. 

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Vickers

Vickers macro hardness testing uses a pyramid-shaped diamond indenter, and offers the broadest scale of hardness measurements. 

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Rockwell

Rockwell hardness tests use a diamond cone or hard steel ball to carry out hardness tests to HRB or HRC scales. 

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Micro-hardness Testing

Using Vickers or Knoop test methods, microhardness testing is ideal for thin samples or fragile materials. 

What type of Hardness test do I need? 

There are many things to consider when choosing an appropriate hardness test; the type, material composition and size of the material to be tested, the required standards to be met, and how accurate the results need to be. Our engineers have a wealth of experience and knowledge to advise you on the right type of hardness test needed for your sample. 

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No. 0366 Our accreditation is limited to those activities described on our UKAS schedule of accreditation found here

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Rotech Laboratories Ltd
Moxley Industrial Centre
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Wednesbury
West Midlands
WS10 7BG

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