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Hardness Conversion Formula:
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The HB to HRC hardness conversion provides an approximate conversion between Brinell hardness (HB) and Rockwell C hardness (HRC) scales. This conversion is useful for material testing and quality control in metallurgy and materials science.
The calculator uses the hardness conversion formula:
Where:
Explanation: This formula provides an approximate conversion between the two hardness scales, with HRC values typically ranging from 20 to 70 for most engineering materials.
Details: Accurate hardness conversion is essential for material specification, quality control, and comparing test results from different hardness testing methods used in various industries.
Tips: Enter Brinell hardness (HB) value. The value must be positive and valid. The calculator will provide the approximate Rockwell C hardness (HRC) equivalent.
Q1: How accurate is this conversion?
A: This is an approximate conversion. For precise conversions, refer to standardized conversion tables as the relationship between HB and HRC can vary by material type.
Q2: What are typical HB and HRC ranges?
A: HB typically ranges from 100-700 for most metals, while HRC ranges from 20-70. Softer materials have lower values, harder materials have higher values.
Q3: When should I use this conversion?
A: Use for general reference when comparing hardness values from different testing methods or when only one hardness value is available.
Q4: Are there limitations to this conversion?
A: Yes, the conversion is approximate and may not be accurate for all materials, especially at extreme hardness values or for non-ferrous materials.
Q5: What's the difference between HB and HRC testing methods?
A: HB uses a 10mm ball indenter with high loads, while HRC uses a diamond cone indenter with lower loads. Each method has different applications and material suitability.