GB/T 18449.1-2024 "Metallic Materials — Knoop Hardness Test — Part 1: Test Method" specifies the test method for Knoop hardness of metallic materials. Using a rhombic-based pyramidal diamond indenter, it is pressed into the specimen under a relatively small load, and the diagonal lengths are measured to calculate the hardness value. This method is suitable for testing thin layers, brittle materials, and microscopic areas.
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 | 2024-05-28 00:00:00 | Implementation Date | 2024-12-01 00:00:00 |