Iron hardness refers to the resistance of iron to localized plastic deformation caused by indentation or scratching. It's a measure of how well a material resists permanent changes to its shape when a force is applied. According to the reference data, one way to measure hardness is with the Vickers hardness test.
Vickers Hardness of Iron
The provided data sheet from MatWeb gives the Vickers hardness for a specific type of iron as 150.
- Hardness, Vickers: 150
This value indicates the iron's resistance to indentation using the Vickers hardness test method. The higher the number, the harder the material.
Understanding Hardness Measurements
Hardness is a crucial property for engineering materials as it often correlates with other desirable properties, such as strength and wear resistance. The Vickers hardness test involves indenting the material with a diamond indenter and measuring the size of the indentation to determine the hardness number.
Other Mechanical Properties of Iron
The provided data sheet also mentions other mechanical properties which give a broader understanding of the iron's characteristics:
| Physical Properties | Metric | English |
|---|---|---|
| Hardness, Vickers | 150 | 150 |
| Tensile Strength at Break | 540 MPa | 78300 psi |
| Tensile Strength, Yield | 50.0 MPa @Strain 0.5 % | 7250 psi @Strain 0.5 % |
| Modulus of Elasticity | 200 GPa | 29000 ksi |
