Enter the stress in kilopound per square inch and the constant values into the calculator to determine the hardness in Rockwell C scale. This calculator can also evaluate any of the variables given the others are known.
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Ksi To Hrc Conversion Formula
The following formula is used to calculate the conversion from Ksi to Hrc.
Hrc = .294*KSI -12
*For carbon and low alloy steels*
Variables:
- Hrc is the hardness in Rockwell C scale
- Ksi is the stress in kilopound per square inch
| UTS (ksi) | Rockwell C (HRC) |
|---|---|
| 45 | 1.23 |
| 50 | 2.70 |
| 55 | 4.17 |
| 60 | 5.64 |
| 70 | 8.58 |
| 80 | 11.52 |
| 90 | 14.46 |
| 100 | 17.40 |
| 110 | 20.34 |
| 120 | 23.28 |
| 130 | 26.22 |
| 140 | 29.16 |
| 150 | 32.10 |
| 160 | 35.04 |
| 170 | 37.98 |
| 180 | 40.92 |
| 200 | 46.80 |
| 220 | 52.68 |
| 240 | 58.56 |
| 260 | 64.44 |
| * Rounded to 2 decimals. Linear approximation used: HRC ≈ 0.294 × UTS(ksi) − 12. Reliable range: ~0–70 HRC (≈ 41–279 ksi). | |
What is a Ksi To Hrc Conversion?
A Ksi to HRC conversion refers to the process of converting measurements from Kilo-pound per square inch (Ksi) to Rockwell Hardness C Scale (HRC). Ksi is a unit of stress that measures pressure or force per unit area, often used in engineering to measure the strength of materials. On the other hand, HRC is a hardness scale based on indentation hardness of a material. The conversion between these two units is commonly used in material science and engineering to determine the hardness of a material from its measured stress.
How to Calculate Ksi To Hrc Conversion?
The following steps outline how to calculate the Ksi to Hrc Conversion using the given formula:
- First, determine the value of Ksi (stress in kilopound per square inch).
- Next, multiply the value of Ksi by 0.3467.
- Then, add 20.4 to the result obtained in the previous step.
- Finally, the obtained value is the hardness in Rockwell C scale (Hrc).
Example Problem:
Use the following variables as an example problem to test your knowledge:
Ksi (stress in kilopound per square inch) = 50
Follow the steps to calculate the hardness in Rockwell C scale (Hrc).
