Rockwellkovuustestin
Rockwellkovuustestin, also known as the Rockwell hardness test, is a widely used method for measuring the hardness of materials. It was developed by Stanley Rockwell in 1919 and has since become a standard test in materials science and engineering. The test is particularly useful for determining the hardness of metals and alloys, although it can also be applied to other materials such as plastics and ceramics.
The Rockwell hardness test involves the application of a minor load followed by a major load to
There are several scales used in the Rockwell hardness test, each designed for different types of materials.
- Rockwell A: Used for soft materials such as aluminum and copper.
- Rockwell B: Suitable for harder materials like steel and cast iron.
- Rockwell C: Used for very hard materials such as hardened steel and tungsten carbide.
The Rockwell hardness number is expressed as a combination of the scale letter and the hardness value,