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HV to HRC Conversion Formula:
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The HV to HRC conversion provides an approximate relationship between Vickers hardness (HV) and Rockwell C hardness (HRC) scales. This conversion is useful for material testing and quality control applications where different hardness measurement methods are used.
The calculator uses the conversion formula:
Where:
Explanation: This formula provides an approximate conversion between the two hardness scales, with the division by 10 and subtraction of 1 creating the conversion relationship.
Details: Accurate hardness conversion is crucial for material specification, quality control, and comparing test results from different measurement methods in metallurgy and materials engineering.
Tips: Enter Vickers hardness value (HV) in the input field. The value must be greater than 0. The calculator will provide the approximate Rockwell C hardness equivalent.
Q1: How accurate is this conversion?
A: This conversion provides an approximate relationship. For precise conversions, refer to standardized conversion tables as the relationship may vary with different materials.
Q2: What are typical HV and HRC values for common materials?
A: Tool steels typically range from 700-900 HV (60-65 HRC), while hardened steels range from 400-700 HV (40-60 HRC).
Q3: When should I use this conversion?
A: Use for general reference when comparing hardness values measured by different methods, but for critical applications, use standardized conversion charts.
Q4: Are there limitations to this conversion?
A: Yes, this is an approximate formula and may not be accurate for all materials or across the entire hardness range. Material composition affects the conversion relationship.
Q5: Which hardness test is more accurate?
A: Both methods have their advantages. Vickers testing uses a diamond pyramid indenter and is suitable for all materials, while Rockwell C is faster and commonly used for hardened steels.