GB/T 27552-2011 Specification for microhardness testing of welded joints for welds of metal materials. It specifies the principle of the test and clarifies the accuracy of the required equipment. Detailed instructions on the preparatory steps of welded joint samples, covering cutting, sanding, polishing and other links. Describes the selection of test force and loading method, and standardizes the Hardness Measuring location and calculation method. With this standard, the microhardness of different areas of the weld can be accurately measured, providing key data for evaluating welding mass and studying the performance of welded joints, and assisting in the optimization of metal welding process and product mass control.
| Status | Abolish |
|---|---|
| CCS | J33 | ICS | 25.160.40 |
| Release Date | 2011-11-21 00:00:00 | Implementation Date | 2011-06-01 00:00:00 |