Hardness Conversion Table – Convert Rockwell, Brinell, Vickers & More
Hardness Conversion Table – Convert Rockwell, Brinell, Vickers & More
Understanding material hardness is essential for engineers, machinists, and quality inspectors. Our comprehensive Hardness Conversion Table helps you easily convert hardness values between popular scales such as Rockwell, Brinell, Vickers, and others.
Hardness measures a material's resistance to deformation, scratching, or indentation. It is a critical property used to evaluate metals and alloys for various applications.
Rockwell measures hardness by the depth of penetration under a fixed load. It is widely used in metalworking for its speed and ease.
Brinell testing uses a steel or carbide ball indenter under a heavy load. It is useful for materials with coarse structures.
Vickers uses a diamond-shaped indenter, providing precise hardness values even for thin materials.
Select the input hardness scale (e.g., Rockwell C).
Enter the hardness value you want to convert.
View equivalent hardness values in other scales instantly.
Use the converted values to compare materials or specify requirements.
Our conversion table covers common metals such as steel, aluminum alloys, copper alloys, and more. Note that conversion accuracy may vary depending on material and test conditions.
Q1: Why are hardness values different between scales?
Each scale measures hardness differently (depth, size of indentation, load), so values vary based on test method.
Q2: Is hardness conversion 100% accurate?
Conversions are approximate. For critical applications, use the specific test method recommended.
Q3: Can I convert hardness for non-metal materials?
This table is optimized for metals. Other materials may require different hardness tests.