PK LASER · PK LASER Joint Stock Company
2B is a smooth, reflective mill finish; a brushed finish has directional abrasive lines. Choose by appearance, cleaning and service requirements, and confirm the finish specification with the supplier.
2B is a commonly supplied finish for cold-rolled stainless-steel sheet. It has a smooth, relatively uniform surface with a soft reflection. Exact appearance and surface properties can vary by producer, grade, thickness and applicable standard, so use the ordered finish specification rather than appearance alone.
A brushed or satin finish is produced through mechanical abrasion, creating visible directional lines. Grain direction, texture and reflectivity depend on the abrasive process and finishing specification. Different suppliers may use different process names, so request a sample or reference finish when appearance matters.
A smooth 2B surface is often selected for equipment panels, enclosures and parts where a uniform, easy-to-clean surface is wanted. Brushed finishes are often selected when a directional decorative appearance is desired. Suitability for food, medical or corrosive service depends on the grade, surface condition, fabrication and cleaning requirements, not the finish name alone.
Neither finish is universally better. Compare the required appearance, visibility of fingerprints or scratches, cleaning method, wear, corrosion environment and cost. For visible assemblies, check that adjacent sheets have a consistent finish and grain direction.
State the stainless-steel grade, product standard, finish designation, thickness, protective film and any grain-direction requirement on the order. Inspect sample material under the lighting and viewing conditions expected in service. Do not rely on a generic roughness number unless the supplier confirms the measurement method and acceptance limit.
Photograph 2B and brushed samples side by side under the same light, with each finish and grain direction labeled. Include a close-up and a view from normal use distance.
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