How to Choose Between 2B, BA, No.4, and 8K Finishes
A comparison of the appearance, process, and suitable applications of common stainless steel surface finish codes.
2B: Skin-passed and pickled after cold rolling, with a uniform matte surface; the most general-purpose finish, suitable for deep processing and industrial applications.
BA: Bright annealed after cold rolling, with a bright surface; suitable for home appliances, kitchenware, and decoration.
No.4: Brushed finish with distinct straight-line texture; suitable for architectural decoration and elevator panels.
8K: Mirror finish with high reflectivity; suitable for decoration and display, but sensitive to scratches and requiring high cleaning standards.
Selection logic: First consider appearance requirements, then the processing sequence (bending after mirror finishing easily causes scratches), and finally consider maintenance costs.
