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Hardness
Hardness is a core engineering term. Definition, usage notes, and a practical example.
Definition
Hardness is resistance to indentation or scratching.
Why it matters
It is a quick indicator for wear, machinability, and heat treatment control.
How it is used
In a design check, first define the relevant load, dimension, material, or flow condition. Then interpret this term by its role in the formula and compare it with limits.
Example
A high HRC tool steel may resist wear but can become more brittle.
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Formulas
No formulas added for this term.