Brinell Hardness Number Calculator w/ Formula

Enter the load, steel ball diameter, and depression diameter into the calculator to determine the Brinell Hardness of an object.

Brinell Hardness Formula

The following equation is used to calculate the Brinell Hardness number of a material.

  • Where P is the applied load (kg-f)
  • D is the diameter of the steel ball ( mm)
  • d is the diameter of the indentation caused by the steel ball (mm)

Brinell Hardness Definition

The Brinell Hardness is a test performed on a material that describes the overall hardness of the material based on the indentation left during the test.

Brinell Hardness Example

How to calculate Brinell Hardness?

  1. First, perform the Brinell Hardness test.

    Perform the Brinell Hardness test.

  2. Next, determine the force.

    Measure the force applied.

  3. Next, determine the diameter of the steel ball.

    Measure the diameter of the steel ball.

  4. Next, determine the diameter of the indentation.

    Measure the diameter of the indentation.

  5. Finally, calculate the Brinell Hardness.

    Calculate the Brinell Hardness using the formula above.

FAQ

What is Brinell Hardness?

Brinell Hardness is a characteristic of a material that describes it’s hardness through the indentation of a material caused by forcing a steel ball onto the material.

How is Brinell Hardness performed?

This test is typically performed by placing a small sheet of material beneath a 10mm diameter steel ball, and applied a force of 3000 kgf to the steel ball.

brinell hardness calculator