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HRB to BHN Conversion Formula:
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The HRB to BHN conversion provides an approximate relationship between Rockwell B hardness and Brinell hardness numbers. This conversion is useful when comparing material hardness values measured using different testing scales.
The calculator uses the conversion formula:
Where:
Explanation: This empirical formula provides an approximate conversion between the two hardness scales, particularly useful for materials that fall within the common range of both testing methods.
Details: Converting between hardness scales is essential when comparing material specifications, selecting appropriate materials for applications, and when only one type of hardness testing equipment is available.
Tips: Enter the Rockwell B hardness value (HRB) in the input field. The calculator will provide the approximate Brinell hardness number (BHN). Values should be positive numbers.
Q1: How accurate is this conversion?
A: This conversion provides an approximate value. For critical applications, direct measurement using the appropriate hardness testing method is recommended.
Q2: What is the typical range for HRB values?
A: Rockwell B scale is typically used for softer materials with hardness values ranging from approximately 30 to 100 HRB.
Q3: When should I use this conversion?
A: Use this conversion when you need to compare hardness values between different testing methods or when converting specifications from one scale to another.
Q4: Are there limitations to this conversion?
A: Yes, conversions between hardness scales are approximate and may vary depending on material type, heat treatment, and other factors.
Q5: Can this conversion be used for all materials?
A: This conversion works best for common metals and alloys. It may be less accurate for specialized materials or extreme hardness values.