Explanation
Fine-grained steel, also known as fine-grained steel, is a steel product that refines the grain size of metallic materials by some heat treatment methods to make its essential grain size reach grade 5 to 8, thus improving its mechanical properties. The intrinsic grain size refers to the tendency of grain growth of austenite in steel under certain conditions. The austenite grain size is measured after holding at 930 ± 10 ℃ for 3~8h.
Classification
No classification at present.