Choosing the right surface finish for stainless sheet is as important as choosing the grade. A finish affects appearance, cleaning, fabrication, and sometimes even lead time.
What the finishes mean
- 2B: Cold-rolled, annealed/pickled, then skin-passed. Smooth matte/satin look; the most common choice for general fabrication.
- BA (Bright Annealed): Annealed in a controlled atmosphere, then rolled to keep a bright, reflective surface. Often chosen for decorative panels and appliances.
- No.4 (Brushed): Mechanically polished to a uniform grain (satin). Great for visible surfaces where fingerprints and small scratches should be less noticeable.
Quick selection guide
- General fabrication (cutting, bending, welding): 2B
- Decorative cladding / elevator / kitchen: No.4 or BA
- Aggressive environments (coastal, chemical splash): consider 316L (grade matters more than finish)
- Easy cleaning / hygiene: 2B or No.4, plus proper passivation after fabrication
How to specify in an RFQ (to avoid re-quotes)
To get a fast, accurate quotation, include:
- Grade: 201 / 304 / 316L / 321 / 430
- Standard: ASTM A240/A480 or EN 10088
- Size: thickness × width × length (or coil width × ID/OD)
- Finish: 2B / BA / No.4, and whether you need PVC/laser film
- Edge: mill edge / slit edge
- Quantity: pcs + total weight (or MT)
- Tolerance: thickness tolerance requirement (if strict)
- Destination port + Incoterm: FOB/CFR/CIF/EXW
Common mistakes buyers make
- Saying “polished” but not specifying No.4 / BA / mirror
- Forgetting protective film requirements (and film side)
- No grain direction requirement for No.4 on visible panels
If you want, send your target finish and application photos—our team can recommend the most cost-effective option before quoting.