Grain Size Definition
Definition | Range of Average Grain Size | Typical Metallurgraphic Picture (1500X) |
Ultrafine | 0.3~<0.6 µm | |
Submicron | 0.7~<0.8 µm | |
Fine | 0.8~<1.0 µm | |
Medium- | 1.1~<1.6 µm | |
Medium | 1.6~<2.5 µm | |
Coarse | 2.5~6.0 µm | |
Extra Coarse | >6.0 µm |