Interpretation of GB/T 26656—2023 standard

To facilitate a better understanding and implementation of GB/T 26656—2023, a detailed interpretation of its revised key contents was provided. The new standard added terms and definitions, adjusted the vermicularization ratio calculation formula, revised the particle roundness limit, unified the expression for microstructure content, optimized the calculation rules for matrix structure content, and redrew the reference atlas, thus demonstrating certain advancement overall.