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info@ndtone.comSPR (Portable Rockwell) probe
Description
The probe is designated to measure hardness of nonferrous metals and also steels with low and medium hardness and other materials. The device realizes direct method of hardness measurement in accordance with DIN 50157 and ASTM B724 standards. It is possible to measure hardness of surface layers, parts sensitive to scratches and polished surfaces and also thin products, profiles, pipes with wall thickness less than 2 mm. Material and dimensions of inspected objected do not influence measurement results.
Features
— direct measurement method;
— possibility to measure hardness of a wide range of materials (nonferrous metals and alloys, steels, plastics) without preliminary calibration;
— absence of thickness influence (from 2 mm) and weight influence of inspected object on measurement results;
— possibility to carry out measurements with set limits.
Basic Technical Characteristics
| Technical data | SPR (Portable Rockwell) probe | Units |
|---|---|---|
| indentation depth measurement error | ± 0.3 (ASTM E18-03) | µm |
| load: | ||
| preliminary | 12 | N |
| preliminary and main load | 49 | N |
| diamond indenter – truncated cone: | ||
| angle of lateral side | 100 ± 0.5 | degree |
| diameter of the upper base | 60 ± 5 | µm |
| Overall dimensions | Ø53 х 104 | mm |
| Weight | 300 | g |
