1. What is HRC to HV Conversion?

The HRC to HV conversion allows you to approximate Vickers hardness values from Rockwell C hardness measurements. This is useful when comparing materials tested with different hardness scales or when specific standards require Vickers hardness values.

2. How Does the Calculator Work?

The calculator uses the approximation formula:

Where:

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

Explanation: This linear approximation provides a quick conversion between the two hardness scales, though it may have slight variations depending on the specific material being tested.

3. Importance of Hardness Conversion

Details: Accurate hardness conversion is crucial for material specification, quality control, and comparing test results from different measurement systems in metallurgy and materials engineering.

4. Using the Calculator

Tips: Enter Rockwell C hardness value between 0-70 HRC. The calculator will provide the approximate Vickers hardness value. For precise conversions, consult material-specific conversion charts.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this conversion?
A: This is an approximation formula. Actual conversion may vary by material type and specific testing conditions. For critical applications, use standardized conversion tables.

Q2: What are typical HRC values for common materials?
A: Tool steels: 55-65 HRC, Hardened steels: 45-60 HRC, Annealed steels: 10-25 HRC.

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

Q4: Are there limitations to this conversion?
A: The conversion is less accurate at extreme hardness values and may vary between different material compositions.

Q5: Can I convert HV back to HRC?
A: Yes, you can rearrange the formula: HRC ≈ (HV - 11) / 9.9, but this is also an approximation.