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What are the effects of the surface type of stainless steel strip on its performance
source：www.cnlichao.net | Release time：2026年05月11日2B, BA mirror, brushed, frosted, 8K mirror, polished surface, hot-rolled surface
2、 Impact on core performance
1. Corrosion resistance
Mirror/polished/BA surface: The surface is smooth and dense, without scratches or gaps, has good corrosion resistance, and is not easy to accumulate dirt or rust.
2B matte surface: medium corrosion resistance, industrial universal, stable and durable.
Brushed/frosted surface: The surface has fine patterns and micro grooves, which are prone to water accumulation, salt accumulation, and dirt accumulation. Its corrosion resistance decreases, and it is more prone to pitting and rusting in damp/seaside environments.
Hot rolled black skin surface: It has a lot of oxide skin, is rough, and has the worst corrosion resistance. It must be pickled and passivated before it can be used.
2. Wear resistance and scratch resistance
Brushed/frosted: It has a texture and slight scratches are not obvious, making it more scratch resistant in appearance.
Mirror/8K: The surface is extremely bright, and even the slightest scratch is very noticeable. It is the most delicate and most afraid of collision and friction.
2B surface: Matte compromise, wear-resistant and scratch resistant balance, suitable for industrial mass production.
3. Subsequent processing performance (bending, stretching, stamping)
2B、 Soft BA: With a uniform surface and good lubrication, it is not easy to crack during bending, stretching, and deep drawing, making it the most suitable for stamping parts.
Brushed surface: It has directional texture and can be bent along the pattern without any problem. Horizontal bending is prone to cracking and wrinkling.
High polished mirror surface: high surface stress, not suitable for deep drawing and stretching, only suitable for simple cutting and bending.
4. Cleanliness and hygiene performance (food/medical)
Mirror/Bright BA: Smooth and pore free surface, no stains, easy to clean, and not prone to bacterial growth. Suitable for food equipment and medical use.
Brushing/sanding: The pattern is prone to getting stuck in oil stains and residue, making it difficult to clean quickly and not suitable for high hygiene conditions.
5. Appearance and antioxidant properties
The brighter the surface, the better its resistance to oxidation and discoloration;
The rough brushed surface is prone to yellowing, blackening, and scaling when exposed for a long time.
6. Welding performance
Mirror/high polishing: The surface is prone to polishing wax and oxides, and welding is prone to porosity and virtual welding. It needs to be polished and cleaned first.
2B、 Drawing surface: better welding adaptability and more stable process.
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