1. What is Brinell to Rockwell Conversion?

The Brinell to Rockwell conversion provides an approximate equivalent hardness value between these two different hardness scales. While they measure different aspects of material hardness, approximate conversions are useful for comparison.

2. How Does the Calculator Work?

The calculator uses the approximate formula:

Where:

• \( HB \) — Brinell hardness number
• \( HRC \) — Rockwell C hardness number

Note: This is an approximate conversion. For precise conversions, consult standard conversion tables specific to the material.

3. Importance of Hardness Conversion

Details: Converting between hardness scales is important when comparing material specifications or when only one type of hardness measurement is available but another is required.

4. Using the Calculator

Tips: Enter the Brinell hardness number (HB). The calculator will provide the approximate equivalent Rockwell C hardness (HRC).

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 and testing conditions.

Q2: Can this be used for all materials?
A: The conversion works best for steels. Different materials may require different conversion factors.

Q3: Why are there different hardness scales?
A: Different scales measure hardness in different ways (indenter type, load applied) and are suited for different materials and hardness ranges.

Q4: What's the range of validity for this formula?
A: This formula works reasonably well for HB values between 200-600, corresponding to HRC values of approximately 20-60.

Q5: When should I use actual conversion tables?
A: For critical applications or when precise conversions are needed, consult ASTM or ISO conversion tables specific to your material.