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Brinell to Rockwell Conversion Formula:
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The Brinell to Rockwell conversion allows you to convert hardness values between Brinell (HB) and Rockwell C (HRC) scales. This is useful in materials testing and quality control when comparing hardness measurements from different testing methods.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides an approximate conversion between Brinell and Rockwell C hardness scales, commonly used in metallurgy and materials science.
Details: Accurate hardness conversion is crucial for material selection, quality control, and comparing test results from different hardness testing methods in manufacturing and engineering applications.
Tips: Enter Brinell hardness value (HB) in the input field. The value must be greater than 0. The calculator will automatically compute the equivalent Rockwell C hardness (HRC).
Q1: How accurate is this conversion formula?
A: This formula provides an approximate conversion. For precise applications, refer to standardized conversion tables or conduct actual hardness tests.
Q2: What are typical HB and HRC values for common materials?
A: Mild steel: 120-180 HB (20-30 HRC), Tool steel: 200-700 HB (20-65 HRC), Hardened steel: 400-600 HB (40-55 HRC).
Q3: When should I use this conversion?
A: Use for general reference when comparing hardness values between different testing methods or when only one type of hardness data is available.
Q4: Are there limitations to this conversion?
A: Yes, conversions are approximate and may vary based on material composition, heat treatment, and specific testing conditions.
Q5: Can this conversion be used for all materials?
A: This conversion works best for steel and similar metals. Different conversion factors may be needed for non-ferrous materials or very hard materials.