Hardness measurements of materials for Rockwell, Vickers or Brinell testing. It accommodates all your needs of determining the resistance of a material to deformation.
Force is applied to press an indenter into the surface of the material. The depth and size of the indentation and the force applied to provide a measurement of the material hardness.
Hardness is the property that governs a material’s resistance to deformation such as scratching, indentation or penetration. The material hardness provides the designer with an indication of a material’s resistance to wear and exposure to ablative influences such as water, steam, oil, sand, etc. Several tests exist for determining material hardness.
The Rockwell hardness test applies a preload to an indenter to establish a baseline, and then applies and removes a major load. The difference in the depth of the indentation before and after the major load determines the Rockwell hardness value. Various scales exist for Rockwell hardness depending on the indenter and major and minor loads. Superficial Rockwell scales are used for parts that are too small or thin to be measured using the standard Rockwell loads without causing damage to the samples.
Brinell hardness testing utilizes an indenter with a ball tip and a known force. The ball makes an indentation in the material, and a calculation is performed based on the force, ball diameter, and indentation diameter (the larger the indentation, the lower the hardness). Brinell hardness is generally indicated along with the indenter size and test force utilized.
Vickers hardness utilizes a diamond-shaped indenter with defined corners that allows for easy measurement of the indentation size and calculation of the hardness value. Macro Vickers hardness measurements are useful for large parts and utilize test loads from 1 to 120 kgf.
Universal hardness testers such as the QualiUniversal and QualiUniversal-Lite provide increased flexibility by allowing measurement in any of the different scales depending on the application, sample, and user preference. There is no need to purchase a hardness tester of each type.
MAIN UNIT SPECIFICATIONS |
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User Interface |
Menu selectable via membrane keypad and high definition backlit LCD display |
Limit Switches |
Upper and lower limits preset with warning signals to avoid damage to instrument |
Memory |
Up to 400 test results stored automatically |
Data Statistics |
Average, maximum, minimum, standard deviation (S), correlation coefficient (R) |
Data Collection |
USB, RS232, built-in printer |
Resolution |
0.1 HR |
Load Dwell Duration |
2 s – 50 s, can be programmed and stored |
Sample Size Capacity |
300 mm (vertical), 220 mm (horizontal) Vertical capability can be customized to suit customer’s needs |
Power Supply |
110/220 V, 50/60 Hz, 4A |
Dimensions |
690 mm (D) x 280 mm (W) x 860 mm (H) |
Gross Weight |
120 kg / 265 lbs |
Net Weight |
86 kg / 190 lbs |
ROCKWELL MEASUREMENT SPECIFICATIONS |
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Hardness Scales |
Standard Rockwell: HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK, HRL, HRM, HRP, HRR, HRS, HRV
Superficial Rockwell: HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X, HR30X, HR45X, HR15Y, HR30Y, HR45Y |
Minor Load |
Standard Rockwell: 10 kgf Superficial Rockwell: 3 kgf |
Major Load |
Standard Rockwell: 60 kgf, 100 kgf, 150 kgf Superficial Rockwell: 15 kgf, 30 kgf, 45 kgf |
Indenters |
120º cone, 1/16” carbide ball indenter included (others sold separately) |
BRINELL MEASUREMENT SPECIFICATIONS |
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Test Force |
15.625 kgf, 31.25 kgf, 62.5 kgf, 100 kgf, 125 kgf, 187.5 kgf, 250 kgf |
Indenters |
Ø2.5 mm, Ø5 mm, Ø10 mm ball indenters included |
Hardness Scales (Indenter/Test Load) |
Ø2.5/15.625, Ø2.5/31.25, Ø2.5/62.5, Ø2.5/187.5 Ø5/62.5, Ø5/125, Ø5/250 Ø10/100, Ø10/250 |
VICKERS MEASUREMENT SPECIFICATIONS |
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Hardness Scales |
HV3, HV10, HV20, HV30, HV50, HV100 |
Test Force |
3 kgf, 10 kgf, 20 kgf, 30 kgf, 50 kgf, 100 kgf |
Indenter |
136º diamond pyramid |
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