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Brinell To Rockwell Hardness Calculator

Rockwell B Equation:

\[ Rockwell\ B = 130 - (30 \times D) \]

BHN

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1. What is the Brinell to Rockwell Hardness Conversion?

The Brinell to Rockwell hardness conversion provides a method to convert Brinell Hardness Number (BHN) to Rockwell B hardness scale. This conversion is useful in materials testing and quality control applications where different hardness scales are used.

2. How Does the Calculator Work?

The calculator uses the conversion equation:

\[ Rockwell\ B = 130 - (30 \times D) \]

Where:

Explanation: The equation converts Brinell hardness values to Rockwell B scale using a linear conversion formula.

3. Importance of Hardness Conversion

Details: Accurate hardness conversion is crucial for materials testing, quality control, and comparing hardness measurements across different testing scales in manufacturing and engineering applications.

4. Using the Calculator

Tips: Enter Brinell Hardness Number (BHN) in the input field. The value must be a positive number greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is Brinell Hardness Number (BHN)?
A: BHN is a measure of hardness obtained by pressing a hard steel or carbide ball into the material under a specific load and measuring the diameter of the indentation.

Q2: What is Rockwell B hardness scale?
A: Rockwell B is a hardness scale that uses a 1/16-inch diameter steel ball indenter with a 100 kg load, typically used for softer materials.

Q3: When should this conversion be used?
A: This conversion should be used when you need to compare or convert hardness values between Brinell and Rockwell B scales for material testing purposes.

Q4: Are there limitations to this conversion?
A: This conversion provides an approximate value and may not be accurate for all materials. For precise measurements, actual hardness testing on the desired scale is recommended.

Q5: What materials is this conversion suitable for?
A: This conversion is generally suitable for steel and other metallic materials where both Brinell and Rockwell B hardness testing are applicable.

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