1. What is HRB to HRC Conversion?

The HRB to HRC conversion provides an approximate relationship between Rockwell B and Rockwell C hardness scales. This conversion is useful when comparing materials or when only one hardness measurement is available.

2. How Does the Calculator Work?

The calculator uses the approximate conversion formula:

Where:

• \( HRB \) — Rockwell B hardness value
• \( HRC \) — Estimated Rockwell C hardness value

Note: This is an approximate conversion. For accurate results, consult official conversion tables as the relationship between HRB and HRC is not perfectly linear.

3. Importance of Hardness Conversion

Details: Converting between Rockwell scales is important for material specification, quality control, and comparing hardness measurements across different testing methods and standards.

4. Using the Calculator

Tips: Enter the HRB value in the input field. The calculator will provide an approximate HRC value. Remember that this is an estimation and precise conversions require reference to official conversion tables.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this conversion?
A: This provides a rough approximation. For precise engineering applications, always refer to official ASTM or ISO conversion tables.

Q2: What are typical HRB and HRC ranges?
A: HRB typically ranges from 0-100 for softer materials, while HRC ranges from 20-70 for harder materials.

Q3: When should I use conversion tables instead?
A: Use official conversion tables for critical applications, material certification, or when precise hardness values are required for specifications.

Q4: Can this conversion be used for all materials?
A: The conversion relationship varies by material type. This approximation works best for steels but may be less accurate for other materials.

Q5: Why are there different Rockwell scales?
A: Different Rockwell scales (A, B, C, etc.) use different indenters and loads to measure hardness across various material hardness ranges.