1. What is HRB to HRC Conversion?

The HRB to HRC conversion provides an approximate equivalency between Rockwell B and Rockwell C hardness scales. These are different scales used to measure material hardness, with HRB typically used for softer materials and HRC for harder materials.

2. How Does the Calculator Work?

The calculator uses the approximate formula:

Note: This is only an approximation. For precise conversions, standard conversion tables should be used as the relationship between scales is not perfectly linear.

3. Importance of Hardness Conversion

Details: Converting between hardness scales is important when comparing material specifications or when only one scale measurement is available but the other is required. However, direct measurement on the desired scale is always preferred.

4. Using the Calculator

Tips: Enter a valid HRB value between 0-100. The calculator will provide the approximate HRC equivalent. Remember this is only an estimate.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this conversion?
A: This is an approximate conversion only. The actual relationship between HRB and HRC varies by material and exact composition.

Q2: When should I use this conversion?
A: Only for rough estimates. For critical applications, always measure hardness using the appropriate scale.

Q3: Why are there different Rockwell scales?
A: Different scales (A, B, C, etc.) use different indenters and loads to cover the full range of material hardnesses.

Q4: What materials is this conversion valid for?
A: The approximation works best for steels, but accuracy varies. It's less reliable for non-ferrous materials.

Q5: Where can I find official conversion tables?
A: ASTM E140 contains standard hardness conversion tables for metals.