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BHN to HRC Conversion Formula:
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BHN to HRC conversion provides an approximate relationship between Brinell Hardness Number and Rockwell C hardness scale. This empirical conversion is useful for material selection, quality control, and engineering applications where different hardness testing methods are used.
The calculator uses the empirical conversion formula:
Where:
Explanation: This empirical formula provides an approximate conversion between two different hardness measurement systems commonly used in materials testing.
Details: Accurate hardness conversion is essential for material specification, quality assurance, and when comparing test results from different hardness testing methods in manufacturing and engineering applications.
Tips: Enter the Brinell Hardness Number (BHN) value. The value must be positive and valid. The calculator will provide the approximate Rockwell C hardness equivalent.
Q1: How Accurate Is This Conversion?
A: This is an empirical approximation and may vary depending on material type, heat treatment, and specific alloy composition. For critical applications, direct measurement is recommended.
Q2: What Are Typical BHN And HRC Ranges?
A: BHN typically ranges from 100-700 for most metals, while HRC ranges from 20-70 for hardened steels. The conversion is most reliable within common overlapping ranges.
Q3: When Should I Use This Conversion?
A: Use for preliminary estimates, material selection, and when only one hardness value is available but the other scale is specified in requirements.
Q4: Are There Limitations To This Conversion?
A: Yes, accuracy decreases at extreme hardness values and varies between different material types. Different materials may require specific conversion tables.
Q5: Can This Be Used For All Materials?
A: This conversion works best for steels and similar alloys. For non-ferrous metals, plastics, or specialized materials, consult specific conversion charts.