GB/T 18449.4-2022 is the Hardness value table standard for the Knoop Hardness test of metal materials. It systematically organizes a large number of Knoop Hardness test data, covering the Hardness value corresponding to the long diagonal length of the indentation under different test forces. The table is scientifically arranged and the data is accurate, which is convenient for users to quickly find. In the research, production and mass testing of metal materials, personnel can quickly determine the Knoop Hardness value based on the indentation long diagonal data of the test measurement, which provides a strong basis for judging material performance and controlling product mass.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | H22 | ICS | 77.040.10 |
| Release Date | 2022-03-09 00:00:00 | Implementation Date | 2022-10-01 00:00:00 |