Surface scratch phenomenon refers to the defect of linear or dot-like indentation marks occurring on the surface of 304 stainless steel after deep processing or grinding of the product.

Reason: Foreign objects on the surface and mold surface, and damage on the edge pad surface.

Countermeasures: Remove foreign objects and damage prior to processing, and also eliminate peel by thorough grinding.

The orange peel phenomenon refers to the occurrence of a surface texture resembling the peel of an orange on 304 stainless steel products during grinding or other processes.

The reason: Insufficient grinding leads to more severe orange peel with increased processing size, as the raw material has coarse grain structure and becomes softened through heat treatment.

Countermeasures: Fully grind the deep-processing products, select suitable heat treatment conditions, and control the grain size of the raw materials.