Home / Surface Solutions / Mill and Polished Finishes SURFACE FINISH REFERENCE
Mill and Polished Finishes Mill finishes, brushed grain, mirror reflection and matt textures give flat material different visible appearances. Compare the options with the product form, visible faces and later fabrication in mind.
On this page No.1 No.1 A coarse matt base surface after hot rolling, annealing and pickling.
Reference grades 201 J1, 201 J2, 201 J3, 201 J4, 304, 430
Metal substrate thickness 3–12 mm
Reference widths 1000, 1020, 1219, 1240, 1500, 1520 mm
Specification details Specify cut length or coil requirements. Uses and Order Requirements Typical Uses General fabricated components and concealed metalwork where a descaled hot-rolled appearance is appropriate.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Specify the required descaling or pickling condition, visible faces and subsequent finishing.
2B 2B A smooth, softly matt base finish produced by cold rolling, annealing, descaling and a final skin pass.
Coil overview
Metal substrate thickness 0.15–3.0 mm
Specification details The grade-specific combinations are listed separately below. Grade-specific sizes
Reference grades 201 J1, 201 J2, 201 J3, 201 J4
Metal substrate thickness 0.3–3.0 mm
Reference widths 1000, 1020, 1219, 1240, 1500, 1520 mm Grade-specific sizes
Reference grades 202, 204C1, 204C3
Metal substrate thickness 0.3–3.0 mm
Reference widths 1240 mm Grade-specific sizes
Reference grades 304
Metal substrate thickness 0.3–3.0 mm
Reference widths 1000, 1020, 1219, 1240, 1500, 1520 mm Grade-specific sizes
Reference grades 304L, 316L
Metal substrate thickness 0.3–3.0 mm
Reference widths 1219, 1240, 1500, 1520, 2000 mm The sheet substrate reference is 0.3–3.0 mm. The broader coil overview does not replace the grade-specific combinations. Uses and Order Requirements Typical Uses General-purpose fabrications, equipment panels and parts that may receive further finishing.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Identify the visible face, handling requirements and any later polishing or coating.
BA BA — Bright Annealed A bright base surface formed by annealing in a protective atmosphere. BA and mechanically polished 8K are distinct surface requirements.
Reference grades 304
Metal substrate thickness 0.3–3.0 mm
Reference widths 1000, 1020, 1219, 1240, 1500, 1520, 2000 mm
Reference grades 430
Metal substrate thickness 0.3–1.2 mm
Reference widths 1000, 1020, 1219, 1240 mm Uses and Order Requirements Typical Uses Bright visible panels, trim and formed components where a mill-bright appearance is specified.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Agree the brightness reference, visible faces and protection during forming.
Hairline Hairline Continuous, one-directional brushed lines. Agree the grain direction, line coarseness and appearance using a reference sample.
Sheets
Reference grades 201, 304, 304L, 316, 316L, 430
Metal substrate thickness 0.3–3.0 mm Width × length (mm) 1000 × 2000 1219 × 2438 1219 × 3048 1500 × 3000 For a hairline coil reference, see Decorative Stainless Steel Coils. Uses and Order Requirements Typical Uses Architectural panels, interior trim and visible fabricated parts with a directional grain.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Provide grain direction, a reference sample, visible-face coverage and joint alignment requirements.
No.4 Satin No.4 Satin A short-grain brushed satin appearance, distinct from the longer directional lines of Hairline.
Sheets
Reference grades 201, 304, 304L, 316, 316L, 430
Metal substrate thickness 0.3–3.0 mm Width × length (mm) 1000 × 2000 1219 × 2438 1219 × 3048 1500 × 3000 Uses and Order Requirements Typical Uses Equipment cladding, kitchen panels and general satin-finish metalwork.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Agree the satin sample and grain consistency; state any surface measurement requirement separately.
Mirror Mirror A mechanically polished reflective surface. Agree the appearance grade, gloss and visible-face condition using a sample.
Sheets
Reference grades 201, 304, 304L, 316, 316L, 430
Metal substrate thickness 0.3–3.0 mm Width × length (mm) 1000 × 2000 1219 × 2438 1219 × 3048 1500 × 3000 8K coil polishing
Metal substrate thickness 0.30–2.00 mm
Specification details Specify the grade, coil width and appearance sample with your request. The sheet and coil-polishing references describe separate processing formats. Uses and Order Requirements Typical Uses Reflective interior panels, trim and decorative components.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Specify the reflection reference, visible faces, flatness expectations and protective-film requirements.
Vibration Vibration Random overlapping swirl marks create a non-directional texture. Machine or hand-worked swirls can be discussed using a reference sample.
Sheets
Reference grades 201, 304, 304L, 316, 316L, 430
Metal substrate thickness 0.3–3.0 mm Width × length (mm) 1000 × 2000 1219 × 2438 1219 × 3048 1500 × 3000 Uses and Order Requirements Typical Uses Non-directional decorative panels and interior metalwork.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Agree the reference texture, pattern density, panel orientation and acceptable variation.
Bead Blasted Sandblasted Bead-Blasted / Sandblasted Finish Blasting media create a matt surface. Specify bead blasting or sandblasting, the media and grain size, and the required appearance sample.
Sheets
Reference grades 201, 304, 304L, 316, 316L, 430
Metal substrate thickness 0.3–3.0 mm Width × length (mm) 1000 × 2000 1219 × 2438 1219 × 3048 1500 × 3000 Uses and Order Requirements Typical Uses Bead Blasted: Matt decorative panels and components requiring a fine, uniform-looking texture.
Sandblasted: Textured decorative cladding and architectural metalwork.
Order Requirements Specify the substrate grade, thickness, complete sheet size or coil requirements, quantity, treated faces, reference sample, grain direction, downstream processing, inspection and packaging requirements.
Specify the sample, visible-face coverage and cleaning or masking requirements.
Agree the required texture, masking, visible faces and any later colour treatment.
Swipe to compare surface references Automotive Strip Base Surfaces: BA5 / LB / 1D BA5, LB and 1D base surfaces, with gloss-black and custom-colour appearances agreed by sample.
Strip
Reference grades SUS430M, SUS436M
Specification details Specify the substrate thickness, width, coil weight, inside and outside diameters, and coil requirements. Uses and Order Requirements Order Requirements Specify the substrate grade, surface designation, dimensions, reference sample, visible faces, downstream forming and inspection requirements.
Describe the base finish, visible faces, grain direction and any later forming or polishing.
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