See how hardness changes an indentation
Press a diamond tip, lift it away, and measure the square impression. Compare the mark size at the same force.
Diagram and inputs ↓Choose another visualization (19 topics)
Start with a reference or example
Get a sense of the value, then inspect the diagram or motion.
| Reference / example | Value | What it means | Use |
|---|---|---|---|
| HV100 example | 100 HV | Ideal indentation diagonal: 136.2 µm | |
| HV200 example | 200 HV | Ideal indentation diagonal: 96.29 µm | |
| HV800 example | 800 HV | Ideal indentation diagonal: 48.15 µm |
Formula examples at 9.80665 N (1 kgf), not representative hardness values for named materials.
Applies to condition A. Then press Play or Reveal.
Conditions
HV values are numerical examples, not assigned material or heat-treatment properties.
Visual preview
Ready2D · indenter side view and indentation top view
Top-view impressions share the same scale. The reveal animation is illustrative; indentation timing and plastic deformation are not simulated.
How to read this view
What does higher hardness look like?
At the same test force, quadrupling HV halves the diagonal. Comparison drawings use one common scale.
Does hardness also tell me stiffness or strength?
HV measures indentation hardness. It is distinct from Young’s modulus, toughness, strength and spring stiffness. This view does not predict bending or fracture.
Equation and scope
Uses HV = 1.8544 Fkgf / d², so d = √(1.8544 Fkgf / HV). 1 kgf = 9.80665 N; d is in mm. Actual results depend on test conditions and surface preparation. No Rockwell or Shore conversion is performed.