1. What is HV to HRC Conversion?

The HV to HRC conversion provides an approximate relationship between Vickers hardness (HV) and Rockwell C (HRC) hardness scales. This conversion is useful when comparing materials tested using different hardness measurement methods.

2. How Does the Calculator Work?

The calculator uses the conversion formula:

Where:

• \( HV \) — Vickers hardness number
• \( HRC \) — Rockwell C hardness number

Explanation: This linear approximation provides a quick conversion between the two hardness scales, though actual conversion may vary slightly depending on material properties.

3. Importance of Hardness Conversion

Details: Converting between hardness scales is essential for material specification, quality control, and comparing test results from different laboratories using various testing methods.

4. Using the Calculator

Tips: Enter Vickers hardness value (HV) in the input field. The value must be greater than 0. The calculator will provide the approximate Rockwell C equivalent.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this conversion?
A: This is an approximate conversion. Actual values may vary depending on material composition, heat treatment, and testing conditions.

Q2: What are typical HV values for common materials?
A: Mild steel: 100-200 HV, Hardened steel: 400-800 HV, Carbide tools: 1000-2000 HV.

Q3: When should I use this conversion?
A: Use for quick estimates and general comparisons. For precise specifications, use the actual testing method required.

Q4: Are there limitations to this conversion?
A: Yes, the relationship is not perfectly linear across all materials and hardness ranges. Extreme values may have reduced accuracy.

Q5: What's the difference between HV and HRC testing methods?
A: Vickers uses a diamond pyramid indenter with optical measurement, while Rockwell C uses a diamond cone indenter with depth measurement.