Hardness Testing

The most commonly used and basic definition is the resistance of a material to permanent, plastic deformation. While other forms of hardness testing, such as electromagnetic, rebound, and ultrasonic, are employed in a wide range of applications and measure material hardness via other techniques, indentation hardness testing offers simple, reliable, and a commonly understood test type. It is measured by loading an indenter of specified geometry and properties onto the material for a definite length of time and measuring either the depth of penetration or dimensions of the resulting impression or indentation. The depth of penetration, or indent dimensions become larger as the material being tested is softer.

Common hardness testing varieties include Rockwell (indentation depth or un-recovered indentation), Brinell (area of indentation), and Vickers. Rockwell testing is the most frequently used method by virtue of the quick results produced and is usually used on alloys and metals. The principal purpose of the hardness test is to determine the suitability of a material, or the particular treatment to which the material has been subjected. Hi-Tech is the solution of your all hardness testing requirements.

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