the (hR-hV) is taken as a measure as _____?
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The "R" in "HR" stands for Rockwell. Use of the Vickers scale is usually denoted "HV." For the OP, different scales and methods are generally ...
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Explanation:
(hR-hV) is taken as a measure as a strength and property of cold rolled steel material. They represent the mechanical properties of steel such as its hardness, tensile strength
HR stands for rockwell hardness, it is used to make steel more hard while HV stands for Vickers hardness. This represents the properties such as steel oxidation, nitriding, carburizing, coating
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