Conversion Chart Of Vickers Hardness Hv To Rockwell C Hrc
When it comes to measuring the hardness of materials, there are different methods used. One of the most popular methods is the Vickers hardness test, which was developed by George Vickers in the early 20th century. Another commonly used method is the Rockwell hardness test, which was developed by Stanley P. Rockwell in the 1920s. Both methods have their advantages and disadvantages, but in some cases, it is necessary to convert between the two scales. This article will provide a conversion chart of Vickers hardness Hv to Rockwell C Hrc.
What Is Vickers Hardness?
Vickers hardness is a method of measuring the hardness of a material, based on the size of the indentation made when a diamond indenter is pressed into the surface of the material. The test is done under a specific load and for a specific length of time. The hardness is calculated by dividing the load by the surface area of the indentation. The unit of measurement for Vickers hardness is the Vickers pyramid number (HV).
What Is Rockwell Hardness?
Rockwell hardness is another method of measuring the hardness of a material, based on the depth of penetration of an indenter into the surface of the material. The indenter can be a diamond cone or a steel ball, and the test is done under a specific load. The hardness is calculated by measuring the depth of penetration of the indenter and comparing it to a reference depth. The unit of measurement for Rockwell hardness is the Rockwell hardness number (HRC).
Why Convert Between Vickers Hardness and Rockwell Hardness?
There are several reasons why it may be necessary to convert between Vickers hardness and Rockwell hardness. One reason is that different materials may require different methods of hardness testing. For example, some materials may be too brittle for the Rockwell test, while others may be too soft for the Vickers test. In addition, different industries may use different hardness scales, so it may be necessary to convert between the two scales for comparison purposes.
Conversion Chart of Vickers Hardness Hv to Rockwell C Hrc
Converting between Vickers hardness and Rockwell hardness is not a straightforward process, as the two methods of testing measure different properties of materials. However, there is a conversion chart that can be used to estimate the Rockwell hardness based on the Vickers hardness. The chart is based on empirical data and may not be accurate for all materials, but it can be a useful tool for comparing hardness values.
Here is the conversion chart of Vickers hardness Hv to Rockwell C Hrc:
| Vickers Hardness (HV) | Rockwell C Hardness (HRC) |
|---|---|
| 400 | 38.0 |
| 450 | 41.0 |
| 500 | 44.0 |
| 550 | 47.0 |
| 600 | 50.5 |
| 650 | 54.0 |
| 700 | 57.5 |
| 750 | 61.0 |
| 800 | 64.5 |
| 850 | 68.0 |
| 900 | 71.5 |
| 950 | 75.0 |
| 1000 | 78.5 |
Conclusion
Converting between Vickers hardness and Rockwell hardness can be useful in certain situations, such as when comparing hardness values of different materials or when using different hardness scales. The conversion chart provided in this article is a useful tool, but it should be noted that the accuracy may vary depending on the material being tested. It is always important to use the appropriate method of hardness testing for a particular material and to consult with experts in the field if necessary.