Hardness Testing

Verify Machine Measurement Performance

The hardness measurement performance of a Rockwell machine does not depend solely on the parameters assessed during a direct verification. Once the components of the Rockwell hardness machine and indenter...

Verify Machine Measurement Performance

The hardness measurement performance of a Rockwell machine does not depend solely on the parameters assessed during a direct verification. Once the components of the Rockwell hardness machine and indenter...

Measurement Locations

The characteristics of the material to be tested must be taken into consideration when choosing appropriate measurement locations. Consider two hypothetical Rockwell hardness machines that agree perfectly in their measurement...

Measurement Locations

The characteristics of the material to be tested must be taken into consideration when choosing appropriate measurement locations. Consider two hypothetical Rockwell hardness machines that agree perfectly in their measurement...

Traceability, Error, and Uncertainty

8.1 Traceability Traceability is defined by the International Vocabulary of Basic and General Terms in Metrology (VIM)(20) as “Property of the result of a measurement or the value of a...

Traceability, Error, and Uncertainty

8.1 Traceability Traceability is defined by the International Vocabulary of Basic and General Terms in Metrology (VIM)(20) as “Property of the result of a measurement or the value of a...

Measurement Error

The Rockwell hardness test is usually thought of as a method that measures the hardness of a material. A more accurate description might be that the Rockwell hardness test only...

Measurement Error

The Rockwell hardness test is usually thought of as a method that measures the hardness of a material. A more accurate description might be that the Rockwell hardness test only...

Uncertainty

The determination of uncertainty associated with Rockwell hardness measurements is a relatively new concept for many users of Rockwell hardness as well as for laboratories engaged in hardness calibrations, such...

Uncertainty

The determination of uncertainty associated with Rockwell hardness measurements is a relatively new concept for many users of Rockwell hardness as well as for laboratories engaged in hardness calibrations, such...

Status of Rockwell Hardness Standardization in ...

9.1 United States The past few years have seen significant changes to Rockwell testing in the United States with the introduction of NIST Rockwell standards, accreditation of Rockwell calibration laboratories,...

Status of Rockwell Hardness Standardization in ...

9.1 United States The past few years have seen significant changes to Rockwell testing in the United States with the introduction of NIST Rockwell standards, accreditation of Rockwell calibration laboratories,...