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Toggle the table of contents. Hardnesses of the elements (data page) 10 languages. ... Mohs hardness [1] Vickers hardness (MPa) [1]
A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels.
Elastic properties describe the reversible deformation (elastic response) of a material to an applied stress.They are a subset of the material properties that provide a quantitative description of the characteristics of a material, like its strength.
That third column dataset seems to be based on bad data that's been put out by Wolfram, since the same table is on Wolfram alpha and copied around the web. Lead is not harder than tin and silver. This is pretty basic stuff. The 4th column seems more accurate. Even worse, all the articles on the elements seem to use this bad data in their infoboxes.
A default may specify a unit code or an expression that tests the input value, and which produces one of two different outputs depending on that value. In the expression, v represents the input value specified in the convert template, and exclamation marks (!) are used to separate the expression into either three or four fields.
For a soft material, the difference between the contact depth and the maximum depth of penetration is small, and hence its nominal and true hardness values are practically the same. For a harder material these two types of hardness are different as the difference between them is large. The model proposed by Jha et al in its current form is ...
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Brinell hardness is sometimes quoted in megapascals; the Brinell hardness number is multiplied by the acceleration due to gravity, 9.80665 m/s 2, to convert it to megapascals. The Brinell hardness number can be correlated with the ultimate tensile strength (UTS), although the relationship is dependent on the material, and therefore determined ...