Portable Rockwell Hardness Testers are instruments used to measure the hardness of materials in a non-destructive manner. They are designed for on-site or field testing where it may not be practical to bring the sample to a laboratory setting. The Rockwell hardness test method involves applying a known minor load followed by a major load to an indenter (typically a diamond cone or hardened steel ball) in contact with the material surface. The depth of penetration of the indenter under the major load is measured, and this depth correlates with the material's hardness. Portable Rockwell testers typically consist of a handheld device with a small footprint, making them convenient for use in various locations. They often include a digital display for reading hardness values directly, eliminating the need for manual calculations. Some models may also feature built-in data logging capabilities, allowing for easy record-keeping and analysis of test results.
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