GB/T 5027-2025 "Determination of plasticity strain ratio (r value) of metal sheets and thin strips" specifies the determination method of plasticity strain ratio (r value) of metal sheets and thin strips. The standard covers the test principle, sample preparation, instrument requirements, test procedures and result calculation. It is suitable for evaluating the anisotropic characteristics of materials during plastic deformation, and provides a unified technical basis for the molding process design, quality control and performance research of metal sheet strips.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Incoming | ||
|---|---|---|---|
| CCS | H23 | ICS | 77.040.10 |
| Release Date | 2025-06-30 00:00:00 | Implementation Date | 2026-01-01 00:00:00 |