The HRB to HRC Conversion Calculator is a specialized tool designed to convert the hardness of materials measured on the Rockwell B scale to the Rockwell C scale. The Rockwell hardness test is a method used to determine the hardness of materials by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. HRB and HRC are two scales based on different indenters and loads, with HRB using a 1/16 inch diameter steel ball and HRC using a diamond cone. This conversion is vital in scenarios where a comparison between materials tested on different Rockwell scales is necessary.
Formula of HRB to HRC Conversion Calculator
HRC = HRB + 0.37
Where:
HRCis the Rockwell C hardness.HRBis the Rockwell B hardness.
Table for General Terms
For ease of use and to save time in converting hardness values, a reference table can greatly assist users. Below is an example of how such a table might look, listing common HRB values and their corresponding HRC values, based on the formula provided:
| HRB (Rockwell B Hardness) | HRC (Rockwell C Hardness) |
|---|---|
| 50 | 50.37 |
| 60 | 60.37 |
| 70 | 70.37 |
| 80 | 80.37 |
| 90 | 90.37 |
This table serves as a quick reference, enabling users to bypass manual calculations for common conversions.
Example of HRB to HRC Conversion Calculator
Consider a material with an HRB hardness of 85. To convert this to HRC:
HRC = 85 + 0.37 = 85.37
This calculation shows that an HRB hardness of 85 is equivalent to an HRC hardness of approximately 85.37.
Most Common FAQs
Conversion between HRB and HRC is necessary when comparing materials tested under different conditions or scales, ensuring consistency in measurement and analysis across various applications.
The conversion formula provides an estimation that is useful for general comparison purposes. However, for precise applications, direct measurement using the appropriate Rockwell scale is recommend.
No, the provided formula and calculator are specifically designed for conversion between HRB and HRC scales. Other hardness scales, such as Vickers or Brinell, require different conversion methods.